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DAVIE XD diagnostics manual

Structure

STRUCTURE

EBS

UPEC

AS TRONIC

VIC

EMAS

HYDRONIC 10 (ACH-EW)

CDS-3

ECAS-2

AIRTRONIC (ACH-EA)

ABS-D AND ABS/ASR-E

D3LC (ACH-EA)

EBS-2

200438

ECAS-3

AGS

ZF INTARDER EST42

DAVIE XD diagnostics manual

STRUCTURE

ALS-S

ECS-DC3

IMMOBILISER

CDM

200438

EBS

DAVIE XD diagnostics manual

1 EBS

CONTENTS

Page Date

1. EBS FAULT CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.2 Explanatory notes to EBS fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 . . . . . 200438

2. EBS CUSTOMER PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.2 Explanatory notes to EBS customer parameters. . . . . . . . . . . . . . . . . . . . 2-2 . . . . . 200438

3. SYSTEM INSPECTION WITH DAVIE XD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 . . . . . 200438

3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 . . . . . 200438

Contents

200438 1

EBS

Contents

DAVIE XD diagnostics manual

200438

EBS

DAVIE XD diagnostics manual

1. EBS FAULT CODES

1.1 INTRODUCTION

If the electronic unit detects a system fault, this fault is usually stored in the memory of the electronic unit as a fault code. Most system faults will also generate a warning.

EBS fault codes

200438 1-1

EBS

EBS fault codes

1.2 EXPLANATORY NOTES TO EBS FAULT CODES

If there is an electrical fault in the EBS system, the symptom "open circuit in EBS pressure control" or "deactivation of EBS pressure control" may occur as a system reaction.

Open circuit in EBS pressure control

On application of the foot brake valve, the electronic unit will receive information on the desired vehicle deceleration from the brake pedal position sensor in the foot brake valve. In the electronic unit, this vehicle deceleration command is converted into brake pressure to the brake cylinders. If there is no feedback from the output pressure or wheel speed, there will be less accurate electronically controlled deceleration and brake force distribution.

Deactivation of EBS pressure control

The output pressure control in the brake cylinders is entirely pneumatic; i.e. there is no more electronically controlled deceleration and brake force distribution.

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

11-18 Voltage on pin A8 of the EBS unit is too low due

to:

- contact resistance or poor connection to pin A8 of the EBS unit

11-31 Extremely low voltage (<3 V) on pin A8 of the

EBS unit due to:

- excessive contact resistance on pin A8 of the EBS unit

- interruption on pin A8 of the EBS unit

12-18 Voltage on pin A9 of the EBS unit is too low due

to:

- contact resistance or poor connection to pin A9 of the EBS unit

- short circuit to earth on pin B7 of the EBS unit

12-31 Extremely low voltage (<3 V) on pin A9 of the

EBS unit due to:

- excessive contact resistance on pin A9 of the EBS unit

- interruption on pin A9 of the EBS unit

Short circuit to earth on pin E4 or B7 of the EBS unit

- ABS on front axle deactivated

- ASR brake control deactivated

- EBS pressure control on front axle and drawn vehicle deactivated

- ABS on front axle deactivated

- ASR brake control deactivated

- EBS pressure control on front axle and drawn vehicle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- Pin B7 is connected to earth inside the EBS unit while the power supply to A9 and E4 is interrupted inside the unit.

1-2

200438

EBS

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

13-18 Voltage on pin A7 of the EBS unit is too low due

to:

- contact resistance or poor connection to pin A7 of the EBS unit

14-32 Sensor supply voltage on pins D9, B13 or E1 of

the EBS unit due is too low due to:

- contact resistance or poor connection on specified connection points of the EBS unit

- short circuit to earth on specified connection points of the EBS unit

14-33 Constant voltage, even if the ignition is turned off

and the brake is not applied, on pin D9, B13 or E1 of the EBS unit due to:

- short circuit to supply on specified connection points of the EBS unit

15-33 Constant voltage, even if the ignition is turned off

and the brake is not applied, on pin B7 of the EBS unit due to:

- short circuit to supply on pin B7 of the EBS unit

16-11 Internal failure in EBS electronic unit - ABS on front and rear axles deactivated

- No noticeable system limitation in EBS

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

EBS fault codes

16-12 Configuration parameters in the electronic unit

incorrect due to:

- incorrect programming

- retrofitted components without identification card (oxford) change

16-15 Internal failure in EBS electronic unit - ABS on front and rear axles deactivated

16-17 Voltage (>32 V) on pins A7, A8 and A9 of the EBS

unit is too high due to:

- excessive alternator/battery voltage

- inductive voltage of external component

16-18 Voltage on pins A7, A8 and A9 of the EBS unit at

a speed of >2 km/h is too low due to:

- insufficient battery voltage

- poor earth connection to EBS electronic unit

16-53 Incorrect tyre size due to:

- incorrectly programmed tyre size

- tyre sizes of front and rear axles in different tyre classes without unit having been reprogrammed

- The difference in peripheral speed between the left and right wheel on the same axle exceeds 10%

21-37 Interruption on pin C4 and/or C5 of the EBS unit,

wheel speed sensor (F513)

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

200438 1-3

EBS

EBS fault codes

Fault code Fault code description with possible cause Symptom

21-38 Unacceptable wheel speed sensor frequency

signal from wheel speed sensor (F513) on pins C4 and C5 of the EBS unit due to:

- loose pole ring

- wrong assessment by EBS unit

21-41 Short circuit to earth on pin C4 and/or C5 of the

EBS unit, wheel speed sensor (F513)

21-42 Short circuit to supply on pin C4 and/or C5 of the

EBS unit, wheel speed sensor (F513)

21-44 Short circuit on pin C4 and/or C5 of the EBS unit,

wheel speed sensor (F513)

21-45 Incorrect wheel speed sensor sine-wave signal

from wheel speed sensor (F513) on pins C4 and C5 of the EBS unit due to:

- distorted wheel speed sensor ring

- damaged wheel speed sensor ring

21-46 No uniformity (frequency changes) of wheel

speed sensor signal from wheel speed sensor (F513) on pins C4 and C5 of the EBS unit due to:

- heavy point due to brake disc wobble, for example

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

DAVIE XD diagnostics manual

21-47 Excessive oscillation of wheel speed sensor

signal (maximum/minimum level) from wheel speed sensor (F513) on pins C4 and C5 of the EBS unit due to:

- excessive wheel bearing play

- incorrect mounting of wheel speed sensor ring

21-48 Minimum value of wheel speed sensor signal

from wheel speed sensor (F513) on pins C4 and C5 of the EBS unit is too low due to:

- too large an air gap between wheel speed sensor ring and wheel speed sensor

- contact resistance on pin C4 and/or C5 of the EBS unit

22-37 Interruption on pin D7 and/or D8 of the EBS unit,

wheel speed sensor (F512)

22-38 Unacceptable wheel speed sensor frequency

signal from wheel speed sensor (F512) on pins D7 and D8 of the EBS unit due to:

- loose pole ring

- wrong assessment by EBS unit

22-41 Short circuit to earth on pin D7 and/or D8 of the

EBS unit, wheel speed sensor (F512)

22-42 Short circuit to supply on pin D7 and/or D8 of the

EBS unit, wheel speed sensor (F512)

22-44 Short circuit on pin D7 and/or D8 of the EBS unit,

wheel speed sensor (F512)

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

- ABS on front axle, right deactivated

- ASR brake/engine control deactivated

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

1-4

200438

EBS

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

22-45 Incorrect wheel speed sensor sine-wave signal

from wheel speed sensor (F512) on pins D7 and D8 of the EBS unit due to:

- distorted wheel speed sensor ring

- damaged wheel speed sensor ring

22-46 No uniformity (frequency changes) of wheel

speed sensor signal from wheel speed sensor (F512) on pins D7 and D8 of the EBS unit due to:

- heavy point due to brake disc wobble, for example

22-47 Excessive oscillation of wheel speed sensor

signal (maximum/minimum level) from wheel speed sensor (F512) on pins D7 and D8 of the EBS unit due to:

- excessive wheel bearing play

- incorrect mounting of wheel speed sensor ring

22-48 Minimum value of wheel speed sensor signal

from wheel speed sensor (F512) on pins D7 and D8 of the EBS unit is too low due to:

- too large an air gap between wheel speed sensor ring and wheel speed sensor

- contact resistance on pin D7 and/or D8 of the EBS unit

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

- ABS on front axle, left deactivated

- ASR brake/engine control deactivated

EBS fault codes

23-37 Interruption on pin B1 and/or B2 of the rear axle

modulator (D879), wheel speed sensor (F515)

23-41 Short circuit to earth on pin B1 and/or B2 of the

rear axle modulator (D879), wheel speed sensor (F515)

23-42 Short circuit to supply on pin B1 and/or B2 of the

rear axle modulator (D879), wheel speed sensor (F515)

23-44 Short circuit between pins B1 and B2 of the rear

axle modulator (D879), wheel speed sensor (F515)

23-45 Incorrect wheel speed sensor sine-wave signal

from wheel speed sensor (F515) on pins B1 and B2 of the rear axle modulator (D879) due to:

- distorted wheel speed sensor ring

- damaged wheel speed sensor ring

23-46 No uniformity (frequency changes) of wheel

speed sensor signal from wheel speed sensor (F515) on pins B1 and B2 of the rear axle modulator (D879) due to:

- excessive wheel bearing play

- incorrect mounting of wheel speed sensor ring

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

200438 1-5

EBS

EBS fault codes

Fault code Fault code description with possible cause Symptom

23-47 Excessive oscillation of wheel speed sensor

signal (maximum/minimum level) from wheel speed sensor (F515) on pins B1 and B2 of the rear axle modulator (D879) due to:

- excessive wheel bearing play

- incorrect mounting of wheel speed sensor ring

23-48 Minimum value of wheel speed sensor signal

from wheel speed sensor (F515) on pins B1 and B2 of the rear axle modulator (D879) is too low due to:

- too large an air gap between wheel speed sensor ring and wheel speed sensor

- contact resistance on pin B1 and/or B2 of the rear axle modulator

24-37 Interruption in wheel speed sensor (F514) on pins

C1 and C2 of the rear axle modulator (D879)

24-41 Short circuit to earth in wheel speed sensor

(F514) on pins C1 and C2 of the rear axle modulator (D879)

24-42 Short circuit to supply in wheel speed sensor

(F514) on pins C1 and C2 of the rear axle modulator (D879)

24-44 Short circuit between pins C1 and C2 of the rear

axle modulator (D879), wheel speed sensor (F514)

24-45 Incorrect wheel speed sensor sine-wave signal

from wheel speed sensor (F514) on pins C1 and C2 of the rear axle modulator (D879) due to:

- distorted wheel speed sensor ring

- damaged wheel speed sensor ring

24-46 No uniformity (frequency changes) of wheel

speed sensor signal from wheel speed sensor (F514) on pins C1 and C2 of the rear axle modulator (D879) due to:

- excessive wheel bearing play

- incorrect mounting of wheel speed sensor ring

24-47 Excessive oscillation of wheel speed sensor

signal (maximum/minimum level) from wheel speed sensor (F514) on pins C1 and C2 of the rear axle modulator (D879) due to:

- excessive wheel bearing play

- incorrect mounting of wheel speed sensor ring

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, right deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

DAVIE XD diagnostics manual

24-48 Minimum value of wheel speed sensor signal

from wheel speed sensor (F514) on pins C1 and C2 of the rear axle modulator (D879) is too low due to:

- too large an air gap between wheel speed sensor ring and wheel speed sensor

- contact resistance on pin C1 and/or C2 of the rear axle modulator

1-6

- ABS on rear axle, left deactivated

- ASR brake/engine control deactivated

200438

EBS

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

31-16 Large deviation between the duty cycle signals

from the foot brake valve (F628) on pins E2 and E5 of the EBS unit due to:

- internal fault in foot brake valve

31-52 Large deviation between the duty cycle signals

from the foot brake valve (F628) on pins E2 and E5 of the EBS unit due to:

- internal fault in foot brake valve

32-37 No signal from brake pedal position switch 1 in

foot brake valve (F628) on pin E3 of the EBS unit due to:

- defective switch

- interruption on pin E3 of the EBS unit

32-41 Brake pedal position switch 1 remains closed in

foot brake valve (F628) or short circuit to earth on pin E3 of the EBS unit

33-37 No signal from brake pedal position switch 2 in

foot brake valve (F628) on pin E6 of the EBS unit due to:

- defective switch in foot brake valve

- interruption on pin E6 of the EBS unit

33-41 Brake pedal position switch 2 remains closed in

foot brake valve (F628) or short circuit to earth on pin E6 of the EBS unit

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- Low voltage on connection point A9 inside EBS unit

- No noticeable system limitation in EBS

- The actuating pressure control is active when the brake pedal is not applied; after a specified time (approx. 1 min.) the actuating pressure control will automatically disengage.

- No noticeable system limitation in EBS

- The actuating pressure control is active when the brake pedal is not applied; after a specified time (approx. 1 min.) the actuating pressure control will automatically disengage.

EBS fault codes

34-41 Lower signal level from brake pedal position

sensor 1 in foot brake valve (F628) on pin E2 of the EBS unit is too low during a specified period of time due to:

- contact resistance on pin E2 of the EBS unit

- internal fault in foot brake valve

- short circuit to earth on pin E2 of the EBS unit

34-43 Upper signal level from brake pedal position

sensor 1 in foot brake valve (F628) on pin E2 of the EBS unit is too high during a specified time or the pulse width of the signal is incorrect due to:

- short circuit to supply on pin E2 of the EBS unit

- internal fault in foot brake valve

- interruption on pin E1 of the EBS unit

- interruption on connection point E2 of the EBS unit

- No noticeable system limitation in EBS

200438 1-7

EBS

EBS fault codes

Fault code Fault code description with possible cause Symptom

35-41 Lower signal level from brake pedal position

sensor 2 in foot brake valve (F628) on pin E5 of the EBS unit is too low during a specified period of time due to:

- contact resistance on pin E5 of the EBS unit

- internal fault in foot brake valve

- short circuit to earth on pin E5 of the EBS unit

35-43 Upper signal level from brake pedal position

sensor 2 in foot brake valve (F628) on pin E5 of the EBS unit is too high during a specified time or the pulse width of the signal is incorrect due to:

- short circuit to supply on pin E5 of the EBS unit

- internal fault in foot brake valve

- interruption on pin E4 of the EBS unit

- interruption on pin E5 of the EBS unit

41-61 Communication via V-CAN on pins A1 and A3 of

the EBS unit not possible when switching on ignition due to:

- interruption on pin A1 of the EBS unit

- short circuit to earth on pin A3 of the EBS unit

- short circuit to supply on pin A1 and/or A3 of the EBS unit

41-63 Interrupted communication via V-CAN on pins A1

and A3 of the EBS unit due to:

- interruption on pin A1 and/or A3 of the EBS unit

- short circuit to earth on pin A3 of the EBS unit

- short circuit to supply on pin A1 and/or A3 of the EBS unit

- No noticeable system limitation in EBS

- ASR brake/engine control deactivated

DAVIE XD diagnostics manual

41-65 No CAN message "ERC1" received within a

specified period of time from the engine management system in relation to the engine braking torque

41-66 No CAN message "EEC1" received within a

specified period of time from the engine management system in relation to the engine torque and engine speed

41-67 No CAN message "ETC1" received within a

specified period of time from the gearbox (AS Tronic) if the drive line is activated

41-68 No CAN message "CCVS" received within a

specified period of time from the engine management system in relation to the parking brake status, vehicle speed and clutch status

1-8

- No noticeable system limitation in EBS

200438

EBS

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

41-69 No CAN message "TCO1" received within a

specified period of time from the tachograph in relation to the vehicle speed due to:

- communication problem with the tachograph (MTCO)

- K-factor in MTCO incorrect or not there

- delayed loss of supply voltage on EBS unit when switching off ignition (this is a common production situation but it has been solved in subsequent production versions by the addition of relay G426)

41-71 No CAN message received from VIC within a

specified period of time

42-16 EBS unit does not receive correct CAN message

from the rear axle modulator (D879) on pins B1 and B4 of the EBS unit

42-61 Interrupted CAN communication with the rear

axle modulator (D879) via pins B1 and B4 of the EBS unit due to:

- short circuit to earth on pin B4 of the EBS unit

- short circuit to supply on pin B1 and/or pin B4 of the EBS unit

- short circuit between pin B1 and pin B4 of the EBS unit

43-61 CAN communication problem with the drawn

vehicle ECU via pins B3 and B6 of the EBS unit

43-63 Interrupted CAN communication, with a driving

combination, with the drawn vehicle ECU via pins B3 and B6 of the EBS unit due to:

- interruption on pins B3 and B6 of the EBS unit

- short circuit between pin B3 and pin B6 of the EBS unit

43-75 Interrupted CAN communication, with a driving

combination, with the drawn vehicle ECU via pin B3 (CAN-H) of the EBS unit due to:

- interruption on pin B3 of the EBS unit

- short circuit on pin B3 of the EBS unit

43-76 Interrupted communication, with a driving

combination, with the drawn vehicle ECU via pin B6 (CAN-L) of the EBS unit due to:

- interruption on pin B6 of the EBS unit

- short circuit on pin B6 of the EBS unit

- No noticeable system limitation in EBS

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- No noticeable system limitation in EBS

EBS fault codes

45-16 Interruption, short circuit to earth or short circuit to

supply on pin A18 of the EBS unit

51-21 Short circuit to earth on pin D11 of the EBS unit,

ABS valve (B256)

51-22 Short circuit to supply on pin D11 of the EBS unit,

ABS valve (B256)

200438 1-9

- No noticeable system limitation in EBS

- ABS on front axle, left deactivated

- ABS on front axle deactivated

EBS

EBS fault codes

Fault code Fault code description with possible cause Symptom

51-23 Interruption on pin D12 of the EBS unit, ABS

valve (B256)

51-24 Interruption on pin D11 of the EBS unit, ABS

valve (B256)

51-25 Continuous actuation of ABS valve (B256) via

pins D10 and D12 and/or D11 and D12 of the EBS unit due to:

- internal short circuit in EBS unit

51-26 Interruption on pin D10 of the EBS unit, ABS

valve (B256)

51-27 Short circuit to earth on pin D10 of the EBS unit,

ABS valve (B256)

51-28 Short circuit to supply on pin D10 of the EBS unit,

ABS valve (B256)

52-21 Short circuit to earth on pin C2 of the EBS unit,

ABS valve (B257)

52-22 Short circuit to supply on pin C2 of the EBS unit,

ABS valve (B257)

- ABS on front axle, left deactivated

- ABS on front axle deactivated

- EBS pressure control on front axle and drawn vehicle deactivated

- ABS on front axle, left deactivated

- ABS on front axle deactivated

- ABS on front axle, right deactivated

- ABS on front axle deactivated

DAVIE XD diagnostics manual

52-23 Interruption on pin C3 of the EBS unit, ABS valve

(B257)

52-24 Interruption on pin C2 of the EBS unit, ABS valve

(B257)

52-25 Continuous actuation of ABS valve (B527) via

pins C1 and C3 and/or C2 and C3 of the EBS unit due to:

- internal short circuit in EBS unit

52-26 Interruption on pin C1 of the EBS unit, ABS valve

(B257)

52-27 Short circuit to earth on pin C1 of the EBS unit,

ABS valve (B257)

52-28 Short circuit to supply on pin C1 of the EBS unit,

ABS valve (B256)

53-32 Short circuit to earth on pin D12 or C3 of the EBS

unit, ABS valve (B256 or B257)

53-33 Short circuit to supply on pin D12 or C3 of the

EBS unit, ABS valve (B256 or B257)

55-12 Incorrect redundancy valve (B306) parameters

due to:

- redundancy valve connected to the EBS unit without the EBS unit having been programmed for a redundancy valve

55-31 Interruption in redundancy valve (B306),

measured via pin B12 of the EBS unit

- ABS on front axle, right deactivated

- ABS on front axle deactivated

- EBS pressure control on front axle and drawn vehicle deactivated

- ABS on front axle, right deactivated

- ABS on front axle deactivated

- No noticeable system limitation in EBS

- ABS on front axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

55-32 Short circuit to earth in redundancy valve (B306),

measured via pin B12 of the EBS unit

1-10

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

200438

EBS

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

55-33 Short circuit to supply in redundancy valve

(B306), measured via pin B12 of the EBS unit

57-12 Incorrect ASR cut-off valve (B309) parameters

due to:

- ASR cut-off valve connected to the EBS unit without the EBS unit having been programmed for an ASR cut-off valve

57-31 Interruption on pin C6 of the EBS unit, ASR cut-

off valve (B309)

57-32 Short circuit to earth on pin C6 of the EBS unit,

ASR cut-off valve (B309)

57-33 Short circuit to supply on pin C6 of the EBS unit,

ASR cut-off valve (B309)

61-16 The current through the front axle modulator

(B307) magnet coil measured via pins D1 and D2 of the EBS unit is incorrect due to:

- copper short circuit in the magnet coil

- short circuit or contact resistance between pins D1 and D2 of the EBS unit

61-55 Front axle modulator (B307) output pressure

measured on pin D6 of the EBS unit is incorrect in relation to the current through the magnet coil due to:

- defective pressure sensor

- too low a supply pressure

62-42 Pressure sensor failure in front axle modulator

(B307) due to:

- short circuit to supply on pin D6 of the EBS unit

- interruption on pin D3 of the EBS unit

- short circuit to supply on pin D5 of the EBS unit

62-43 With a nonactivated front axle modulator, the

front axle modulator (B307) pressure sensor output signal on pin D6 of the EBS unit is too low or too high due to:

- defective pressure sensor

- no supply voltage or supply voltage too low on pin D9 of the EBS unit

- interruption on pin D6 of the EBS unit

- short circuit to earth on pin D6 of the EBS unit

- air pressure at connection point 4 of the front axle modulator (B307) if the foot brake valve (F628) is not activated

- ABS on front axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ASR brake control deactivated

- No noticeable system limitation in EBS

- EBS pressure control on front axle deactivated

- Open circuit in EBS pressure control, front axle

EBS fault codes

63-25 Permanent actuation of the front axle modulator

(B307) due to:

- short circuit to supply on one side and short circuit to earth on the other side

63-32 Short circuit to earth on pin D1 of the EBS unit,

front axle modulator (B307)

200438 1-11

- Brake remains applied to front axle

- EBS pressure control on front axle deactivated

EBS

EBS fault codes

Fault code Fault code description with possible cause Symptom

63-33 Short circuit to supply on pin D1 of the EBS unit,

front axle modulator (B307)

63-34 Short circuit to earth on pin D2 of the EBS unit,

front axle modulator (B307)

63-35 Short circuit to supply on pin D2 of the EBS unit,

front axle modulator (B307)

63-36 Interruption on pin D1 and/or D2 of the EBS unit,

front axle modulator (B307)

64-13 The EBS unit parameters for the rear axle

modulator type do not correspond with the parameters in the rear axle modulator (D879)

64-16 Fault in the solenoid valves of the rear axle

modulator (D879)

64-51 Output pressure of the rear axle modulator

(D879) is too high

64-52 Brake pressure signal difference between both

pressure sensors in rear axle modulator (D879) is too high

64-54 No pressure sensor signal in rear axle modulator

(D879) or signal is incorrect (too high/too low)

64-64 CAN communication problem of the EBS unit with

the rear axle modulator (D879) via pins B1 and B4 of the EBS unit

- EBS pressure control on front axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- ABS on rear axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- Open circuit in EBS pressure control, rear axle

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

DAVIE XD diagnostics manual

Supply voltage on pin B7 of the EBS unit interrupted

Interrupted earth connection or contact resistance in the earth connection of the rear axle modulator (D879)

66-12 Incorrect drawn vehicle control valve (B308)

parameters due to:

- drawn vehicle control valve connected to the EBS unit without the EBS unit having been programmed for a drawn vehicle control valve

1-12

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- With an interruption on pin B7, connection points A9 and E4 inside the ECU will have a low voltage, causing brake pedal position sensor 2 to give no output signal, for instance. If the measurement is performed at B7, it will also turn out that B7 in this situation will be internally connected to earth in the ECU

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on rear axle deactivated

- ABS on front and rear axles deactivated

- ASR brake/engine control deactivated

- EBS pressure control on front axle, rear axle and drawn vehicle deactivated

200438

EBS

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

66-16 The current measured by the drawn vehicle

control valve (B308) magnet coil via pins B10 and B11 of the ECU is incorrect due to:

- copper short circuit in the magnet coil

- short circuit or contact resistance between pins B10 and B11 of the EBS unit

66-55 Drawn vehicle control valve (B308) output

pressure measured on pin B14 of the ECU is incorrect in relation to the current through the magnet coil due to:

- defective pressure sensor

- too low a supply pressure

67-42 Pressure sensor fault in drawn vehicle control

valve (B308) due to:

- short circuit to supply on pin B14 of the EBS unit

- interruption on pin D3 of the EBS unit

- short circuit to supply on pin D3 of the EBS unit

67-43 With a nonactivated drawn vehicle control valve,

drawn vehicle control valve (B308) pressure sensor output signal on pin B14 of the EBS unit is too low or too high due to:

- defective pressure sensor

- no or too low a supply voltage to pressure sensor

67-51 With a non-activated drawn vehicle control valve

and a speed >30 km/hour, drawn vehicle control valve (B308) pressure sensor output signal on pin B14 of the EBS unit is too low or too high due to:

- defective pressure sensor

68-25 Permanent actuation of the drawn vehicle control

valve (B308) due to:

- short circuit to supply on one side and short circuit to earth on the other side

68-32 Short circuit to earth on pin B10 of the EBS unit,

drawn vehicle control valve (B308)

68-33 Short circuit to supply on pin B10 of the EBS unit,

drawn vehicle control valve (B308)

- EBS pressure control on drawn vehicle deactivated

- Open circuit in EBS pressure control, drawn vehicle

- Brake remains applied to drawn vehicle

- EBS pressure control on drawn vehicle deactivated

EBS fault codes

68-34 Short circuit to earth on pin B11 of the EBS unit,

drawn vehicle control valve (B308)

68-35 Short circuit to supply on pin B11 of the EBS unit,

drawn vehicle control valve (B308)

68-36 Interruption on pin B10 and/or B11 of the EBS

unit, drawn vehicle control valve (B308)

73-15 If a drawn vehicle with EBS sends a CAN

message to the ECU of the prime mover, indicating that the "serious drawn vehicle failure" needs to be activated on DIP, this fault code will be stored in the prime mover ECU.

200438 1-13

- EBS pressure control on drawn vehicle deactivated

EBS

EBS fault codes

DAVIE XD diagnostics manual

1-14

200438

EBS

DAVIE XD diagnostics manual

2. EBS CUSTOMER PARAMETERS

2.1 INTRODUCTION

Customer parameters

Customer parameters are the settings of an electronic system. The customer parameters permit adapting control functions of a system to the customer's particular wishes and/or needs within certain limits. The customer parameters are stored in a list in the memory of the electronic unit. Customer parameters can be modified using the programming feature of DAVIE XD. Programming using DAVIE XD is only possible if the logged-in user has been registered as a "Master Technician".

Note:

Erroneous settings of customer parameters may affect the action of control functions to such an extent that they function eratically or not at all. After modification of the settings the (modified) customer parameters must be stored in the electronic unit using the programming function in the customer parameter overview.

EBS customer parameters

Customer parameter names and codes

Each customer parameter in a system has its own name and code. The following explanation of the customer parameters includes only the codes. The availability of a customer parameter in a system depends on the programmed software in the electronic unit. The programmed software depends on the vehicle configuration/ identity card data.

Standard values

Standard values, options and setting ranges may vary according to the software variants of DAVIE XD and the system. This is why they have not been included in the following explanation of the customer parameters.

200438 2-1

EBS

EBS customer parameters DAVIE XD diagnostics manual

drawn vehicle when braking is started.

available on FT vehicles and is only active if a drawn

vehicle without EBS system is coupled.

This setting can be changed if:

- there is a complaint relating to the towing of the

Maximum value to

be set:

Minimum value to

be set:

0 bar 3.5 bar The presssure pulse activation ‚"P inshot" is only

Explanation Dependences: Notes

determines the pulsing "P-inshot" to the drawn

vehicle.

2.2 EXPLANATORY NOTES TO EBS CUSTOMER PARAMETERS

2-2

EBS Customer

parameter code

3-01 This is a comfort parameter setting which

200438

EBS

DAVIE XD diagnostics manual

3. SYSTEM INSPECTION WITH DAVIE XD

3.1 GENERAL

If the tyre size is changed or if the vehicle is adjusted in such a way that the configuration is changed, the electronic unit may have to be reprogrammed.

System inspection with DAVIE XD

200438 3-1

EBS

System inspection with DAVIE XD

DAVIE XD diagnostics manual

3-2

200438

UPEC

DAVIE XD diagnostics manual

2 UPEC

CONTENTS

Page Date

1. UPEC FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.2 Explanatory notes to UPEC fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 . . . . . 200438

2. UPEC CUSTOMER PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.2 Explanatory notes to UPEC customer parameters . . . . . . . . . . . . . . . . . . 2-2 . . . . . 200438

3. SYSTEM INSPECTION WITH DAVIE XD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 . . . . . 200438

3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 . . . . . 200438

3.2 Engine brake test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 . . . . . 200438

3.3 Speed variation control test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 . . . . . 200438

Contents

200438 1

UPEC

Contents

DAVIE XD diagnostics manual

200438

UPEC

DAVIE XD diagnostics manual

1. UPEC FAULT CODES

1.1 INTRODUCTION

If the electronic unit detects a system fault, this fault is usually stored in the memory of the electronic unit as a fault code. Most system faults will also generate a warning.

UPEC fault codes

200438 1-1

UPEC

UPEC fault codes

DAVIE XD diagnostics manual

1.2 EXPLANATORY NOTES TO UPEC FAULT CODES

Fault code Fault code description with possible cause Symptom

11-1 Internal communication fault in ECU - Engine stalls and/or engine starts but does

not fire

11-2 Internal communication fault in ECU - Engine stalls and/or engine starts but does

not fire

12-1 Internal fault in ECU due to:

- defective EEPROM

13-1 Internal fault in ECU during the checking

procedure after the ignition was switched off

13-2 Internal fault in ECU during the checking

procedure after the ignition was switched off

13-4 Internal fault in ECU during the checking

procedure after the ignition was switched off

13-8 Internal fault in ECU during the checking

procedure after the ignition was switched off

14-1 Voltage on pin B15 but no voltage on pins B3 and

B4 of the ECU due to:

- faulty relay G126

- no activation of relay G126

- no supply voltage on relay G126

- open connection to pin B27

- short circuit to supply on pin B27

15-1 Internal fault in ECU - No noticeable system limitation

- No noticeable system limitation in UPEC

- Engine stalls and/or engine starts but does not fire

- Communication fault with DAVIE so that fault code cannot be read out

- Several systems will output error messages in connection with the CAN communication

21-8 Voltage on pins B3 and B4, with no voltage being

applied anymore on pin B15 of the ECU due to:

- faulty relay G126

- short circuit to earth on pin B27

- short circuit to supply on pin B3 and/or B4

22-1 Voltage on pins B3, B4 and B15 of the ECU is too

high (>30 V) due to:

- excessive alternator/battery voltage

- inductive voltage of external component

22-2 Voltage on pins B3, B4 and B15 of the ECU is too

low (<14 V) due to:

- insufficient supply voltage, for example during starting

- contact resistance in power supply circuit

22-4 Internal supply voltage fault in ECU - System response depending on internal

31-1 Short circuit to supply on pump unit connections,

pin A24 and/or pin A25 of the ECU

- Engine starts but will not fire

- Communication fault with DAVIE so that fault code cannot be read out

- Several systems will output error messages in connection with the CAN communication

- System response depending on voltage level

supply voltage fault

- Engine stalls and/or engine starts but does not fire

1-2

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

31-2 Short circuit to earth or interruption in the pump

unit (B131) on pin A35 of the ECU, causing the pump unit of cylinder 1 to be switched off

Short circuit to earth on pump unit connections, pin A24 and/or pin A25 of the ECU

Short circuit to supply of the pump unit (B131) on pin A35 of the ECU

Interruption in the pump unit (B131) on pin A24 of the ECU, causing the pump unit of cylinders 1, 2 and 3 to be switched off

31-4 The valve inside the pump unit (B131) does not

close due to:

- jammed valve

- internal contamination

- internal wear

The valve inside the pump unit (B131) does not close fast enough due to:

- internal contamination

- internal wear

31-8 The valve inside the pump unit (B131) does not

open fast enough due to:

- mechanical problems

- internal contamination

32-1 Short circuit to supply on pump unit connections,

pin A24 and/or pin A25 of the ECU

32-2 Short circuit to earth or interruption in the pump

unit (B135) on pin A26 of the ECU, causing the pump unit of cylinder 5 to be switched off

Short circuit to earth on pump unit connections, pin A24 and/or pin A25 of the ECU

- Engine running on 5 cylinders

- Reduced engine output

- Engine stalls and/or engine starts but does not fire

- Engine running on 3 cylinders

- Engine does not supply power

- Engine running on 5 cylinders

- Reduced engine output

- No noticeable system limitation in UPEC

- Engine stalls and/or engine starts but does not fire

- Engine running on 5 cylinders

- Reduced engine output

- Engine stalls and/or engine starts but does not fire

UPEC fault codes

Short circuit to supply of the pump unit (B135) on pin A26 of the ECU

Interruption in the pump unit (B135) on pin A25 of the ECU, causing the pump unit of cylinders 4, 5 and 6 to be switched off

32-4 The valve inside the pump unit (B135) does not

close due to:

- jammed valve

- internal contamination

- internal wear

The valve inside the pump unit (B135) does not close fast enough due to:

- internal contamination

- internal wear

32-8 The valve inside the pump unit (B135) does not

open fast enough due to:

- mechanical problems

- internal contamination

200438 1-3

- Engine stalls and/or engine starts but does not fire

- Engine running on 3 cylinders

- Engine does not supply power

- Engine running on 5 cylinders

- Reduced engine output

- No noticeable system limitation in UPEC

UPEC

UPEC fault codes

Fault code Fault code description with possible cause Symptom

33-1 Short circuit to supply on pump unit connections,

pin A24 and/or pin A25 of the ECU

33-2 Short circuit to earth or interruption in the pump

unit (B133) on pin A34 of the ECU, causing the pump unit of cylinder 3 to be switched off

Short circuit to earth on pump unit connections, pin A24 and/or pin A25 of the ECU

Short circuit to supply of the pump unit (B133) on pin A34 of the ECU

Interruption in the pump unit (B133) on pin A24 of the ECU, causing the pump unit of cylinders 1, 2 and 3 to be switched off

33-4 The valve inside the pump unit (B133) does not

close due to:

- jammed valve

- internal contamination

- internal wear

The valve inside the pump unit (B133) does not close fast enough due to:

- internal contamination

- internal wear

33-8 The valve inside the pump unit (B133) does not

open fast enough due to:

- mechanical problems

- internal contamination

34-1 Short circuit to supply on pump unit connections,

pin A24 and/or pin A25 of the ECU

34-2 Short circuit to earth or interruption in the pump

unit (B136) on pin A27 of the ECU, causing the pump unit of cylinder 6 to be switched off

Short circuit to earth on pump unit connections, pin A24 and/or pin A25 of the ECU

- Engine stalls and/or engine starts but does not fire

- Engine running on 5 cylinders

- Reduced engine output

- Engine stalls and/or engine starts but does not fire

- Engine running on 3 cylinders

- Engine does not supply power

- Engine running on 5 cylinders

- Reduced engine output

- No noticeable system limitation in UPEC

- Engine stalls and/or engine starts but does not fire

- Engine running on 5 cylinders

- Reduced engine output

- Engine stalls and/or engine starts but does not fire

DAVIE XD diagnostics manual

Short circuit to supply of the pump unit (B136) on pin A27 of the ECU

Interruption in the pump unit (B136) on pin A25 of the ECU, causing the pump unit of cylinders 4, 5 and 6 to be switched off

34-4 The valve inside the pump unit (B136) does not

close due to:

- jammed valve

- internal contamination

- internal wear

The valve inside the pump unit (B136) does not close fast enough due to:

- internal contamination

- internal wear

1-4

- Engine stalls and/or engine starts but does not fire

- Engine running on 3 cylinders

- Engine does not supply power

- Engine running on 5 cylinders

- Reduced engine output

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

34-8 The valve inside the pump unit (B136) does not

open fast enough due to:

- mechanical problems

- internal contamination

35-1 Short circuit to supply on pump unit connections,

pin A24 and/or pin A25 of the ECU

35-2 Short circuit to earth or interruption in the pump

unit (B132) on pin A33 of the ECU, causing the pump unit of cylinder 2 to be switched off

Short circuit to earth on pump unit connections, pin A24 and/or pin A25 of the ECU

Short circuit to supply of the pump unit (B132) on pin A33 of the ECU

Interruption in the pump unit (B132) on pin A24 of the ECU, causing the pump unit of cylinders 1, 2 and 3 to be switched off

35-4 The valve inside the pump unit (B132) does not

close due to:

- jammed valve

- internal contamination

- internal wear

- No noticeable system limitation in UPEC

- Engine stalls and/or engine starts but does not fire

- Engine running on 5 cylinders

- Reduced engine output

- Engine stalls and/or engine starts but does not fire

- Engine running on 3 cylinders

- Engine does not supply power

- Engine running on 5 cylinders

- Reduced engine output

UPEC fault codes

The valve inside the pump unit (B132) does not close fast enough due to:

- internal contamination

- internal wear

35-8 The valve inside the pump unit (B132) does not

open fast enough due to:

- mechanical problems

- internal contamination

36-1 Short circuit to supply on pump unit connections,

pin A24 and/or pin A25 of the ECU

36-2 Short circuit to earth or interruption in the pump

unit (B134) on pin A28 of the ECU, causing the pump unit of cylinder 4 to be switched off

Short circuit to earth on pump unit connections, pin A24 and/or pin A25 of the ECU

Short circuit to supply of the pump unit (B134) on pin A28 of the ECU

Interruption in the pump unit (B134) on pin A25 of the ECU, causing the pump unit of cylinders 4, 5 and 6 to be switched off

36-4 The valve inside the pump unit (B134) does not

close due to:

- jammed valve

- internal contamination

- internal wear

The valve inside the pump unit (B134) does not close fast enough due to:

- internal contamination

- internal wear

- Reduced engine output

- No noticeable system limitation in UPEC

- Engine stalls and/or engine starts but does not fire

- Engine running on 5 cylinders

- Reduced engine output

- Engine stalls and/or engine starts but does not fire

- Engine running on 3 cylinders

- Engine does not supply power

- Engine running on 5 cylinders

- Reduced engine output

200438 1-5

UPEC

UPEC fault codes

Fault code Fault code description with possible cause Symptom

36-8 The valve inside the pump unit (B134) does not

open fast enough due to:

- mechanical problems

- internal contamination

41-1 Voltage level of crankshaft sensor (F552) sine-

wave signal on pins A1 and A13 of the ECU is too low due to:

- too large an air gap between flywheel and crankshaft sensor

- contact resistance in connection points

- short circuit or interruption

Excessive oscillation of crankshaft sensor (F552) sine-wave signal on pin A1 of the ECU due to:

- irregularity in flywheel circumference

- faulty fitting of the flywheel

41-2 Too low a voltage level of camshaft sensor (F558)

sine-wave signal on pins A2 and A14 of the ECU due to:

- too large an air gap between pulse disc and camshaft sensor

- contact resistance in connection points

- short circuit or interruption

Excessive oscillation of camshaft sensor (F558) sine-wave signal on pins A2 and A14 of the ECU due to:

- irregularity in pulse disc circumference

- faulty fitting of the pulse disc

- No noticeable system limitation

- No engine speed signal on pin B5 of the ECU

- No noticeable system limitation in UPEC

- Longer start time before engine fires

DAVIE XD diagnostics manual

41-8 Incorrect or unacceptable sine-wave signals of

both the crankshaft sensor (F552) and camshaft sensor (F558) due to:

- contact resistance in connection points

- defective ECU

- interruption or short circuit in crankshaft sensor and camshaft sensor

42-1 Signal of crankshaft sensor (F552) on pins A1 en

A13 of ECU fails due to:

- poor connection/bad contact

- faulty sensor

42-2 Synchronisation of crankshaft sensor signal and

camshaft sensor signals is not correct due to:

- loose pulse disc

- incorrect timing setting

- signal disturbance caused by external influences

42-4 Missing or unacceptable sine-wave signal of

crankshaft sensor (F552) due to:

- interruption on pin A1 and/or A13 of the ECU

- short circuit to earth on pin A1 of the ECU

- short circuit to supply on pin A1 of the ECU

- short circuit between pins A1 and A13 of the ECU

- Engine stalls and/or engine starts but does not fire

- No engine speed signal on pin B5

- Engine starts but will not fire

- No engine speed signal on pin B5 of the ECU

1-6

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

42-8 Unacceptable sine-wave signal of crankshaft

sensor (F552) due to:

- missing hole in flywheel, for example due to fouling

43-1 Interruption or short circuit/short circuit to supply/

short circuit to earth in the camshaft sensor (F558) on pin A2 and/or A14 of the ECU

43-2 Unacceptable sine-wave signal of camshaft

sensor (F558) due to:

- loose pulse plate

43-4 Missing or unacceptable sine-wave signal of

camshaft sensor (F558) due to:

- interruption on pin A2 and/or A14 of the ECU

- short circuit to earth on pin A2 of the ECU

- short circuit to supply on pin A2 of the ECU

- short circuit between pins A2 and A14 of the ECU

43-8 Synchronisation signal from camshaft sensor

(F558) faulty or missing under dynamic conditions due to:

- contact resistance in connection points of camshaft sensor

- faulty camshaft sensor

- mechanical damage of the pulse plate or camshaft sensor

- interruption on pin A14 of the ECU

- too low a voltage level of camshaft signal

- No noticeable system limitation in UPEC

- Longer start time before engine fires

UPEC fault codes

44-1 Excessive engine speed caused by:

- downhill driving

- incorrect changing down into a lower gear

45-1 Signal measurement via coolant temperature

sensor (F566) not correct due to:

- interruption on pin A22 and/or A5 of the ECU

45-2 Signal measurement via coolant temperature

sensor (F566) not correct due to:

- short circuit to earth on pin A22 of the ECU

- short circuit between pins A22 and A5 of the ECU

45-4 No signal measurement via coolant temperature

sensor (F566) due to:

- internal ECU fault

46-1 Boost pressure signal measurement via inlet air

boost pressure/temperature sensor (F649) not correct due to:

- short circuit to supply on pin A12 and/or A23 of the ECU

46-2 Boost pressure signal measurement via inlet air

boost pressure/temperature sensor (F649) not correct due to:

- interruption on pin A23 and/or A12 of the ECU

- short circuit to earth on pin A23 and/or A12 of the ECU

- No noticeable system limitation in UPEC

- Thermometer gives no reading

- ECU switches to default replacement value for engine coolant temperature

- Thermometer gives no reading

- ECU switches to default replacement value for engine coolant temperature

- Thermometer gives no reading

- ECU switches to default replacement value for coolant temperature

- Reduced engine output

- ECU switches to default replacement value for boost pressure

- Reduced engine output

- ECU switches to default replacement value for boost pressure

200438 1-7

UPEC

UPEC fault codes

Fault code Fault code description with possible cause Symptom

46-4 No boost pressure signal measurement via inlet

air boost pressure/temperature sensor (F649) due to:

- internal ECU fault

47-1 Inlet air temperature signal measurement via inlet

air boost pressure/temperature sensor (F649) not correct due to:

- interruption on pin A21 and/or A17 of the ECU

47-2 Inlet air temperature signal measurement via inlet

air boost pressure/temperature sensor (F649) not correct due to:

- short circuit to earth on pin A21 of the ECU

- short circuit between pins A21 and A17 of the ECU

47-4 No inlet air temperature signal measurement via

inlet air boost pressure/temperature sensor (F649) due to:

- internal ECU fault

48-1 Signal measurement via fuel temperature sensor

(F565) not correct due to:

- interruption on pin A6 and/or A11 of the ECU

48-2 Signal measurement via fuel temperature sensor

(F565) not correct due to:

- short circuit to earth on pin A11 of the ECU

- short circuit between pins A11 and A6 of the ECU

- Reduced engine output

- ECU switches to default replacement value for boost pressure

- ECU switches to default replacement value for inlet air temperature

- ECU switches to default replacement value for fuel temperature

DAVIE XD diagnostics manual

48-4 No fuel temperature signal measurement via fuel

temperature sensor (F565) due to:

- internal ECU fault

51-1 Signal measurement on potentiometer in

accelerator pedal sensor (F672) not correct due to:

- short circuit to supply on pin B23 of the ECU

- interruption on pin B35 of the ECU

- short circuit between pin B16 and pin B23 of the ECU

- moisture in connector connection

51-2 Signal measurement on potentiometer in

accelerator pedal sensor (F672) not correct due to:

- interruption on pin B16 and/or pin B23 of the ECU

- short circuit to earth on pin B16 and/or pin B23 of the ECU

- short circuit between pin B16 and pin B35 of the ECU

- short circuit between pin B23 and pin B35 of the ECU

- moisture in connector connection

51-4 No signal measurement on potentiometer in

accelerator pedal sensor (F672) due to:

- internal ECU fault

- ECU switches to default replacement value for fuel temperature

- Indistinct response to accelerator pedal

- Engine runs at increased idling speed

- Indistinct response to accelerator pedal

- Engine runs at increased idling speed

- Indistinct response to accelerator pedal

- Engine runs at increased idling speed

1-8

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

51-8 Conflict between position of idling switch and

output signal of potentiometer in accelerator pedal sensor (F672) due to:

- short circuit to supply on pin B16 of the ECU

- short circuit between pin B17 and pin B25 of the ECU

- short circuit to earth on pin B17 of the ECU

- moisture in connector connection

Conflict between position of idling switch and output signal of potentiometer in accelerator pedal sensor (F672) due to:

- interruption on pin B17 and/or pin B25 of the ECU

52-8 After the ignition had been switched on, the brake

pedal was operated several times (20x) while the accelerator pedal was still being operated

53-1 Short circuit to supply of vehicle speed signal of

MTCO (B525) on pin B29 of the ECU

53-2 Short circuit to earth of vehicle speed signal of

MTCO (B525) on pin B29 of the ECU

- No response to accelerator pedal

- Engine runs at increased idling speed

- When the accelerator pedal is depressed the idling speed of the engine increases gradually.

- No noticeable system limitation

- Cruise control cannot be activated

- Variable vehicle speed limitation function cannot be activated

- Engine brake can be activated with the vehicle stationary

- Control function for engine speed control cannot be activated

- Cruise control cannot be activated

- Variable vehicle speed limitation function cannot be activated

- Engine brake can be activated with the vehicle stationary

- Control function for engine speed control cannot be activated

UPEC fault codes

53-8 Unacceptable vehicle speed signal of MTCO

(B525) on pin B29 of the ECU due to:

- interruption on pin B29

- excessive vehicle speed for example due to incorrectly programmed K factor in MTCO

- loose pulse ring in gearbox

54-1 Too high a voltage on the atmospheric pressure

sensor in the ECU due to:

- internal fault in ECU

54-2 Too low a voltage on the atmospheric pressure

sensor in the ECU due to:

- internal fault in ECU

54-4 Internal ECU fault relating to the atmospheric

pressure sensor

55-8 Frequency of speed signal of electronically

controlled fan clutch (B335) on pin B30 of the ECU is too high due to:

- mechanically blocked fan clutch

- Cruise control cannot be activated

- Variable vehicle speed limitation function cannot be activated

- Engine brake can be activated with the vehicle stationary

- Control function for engine speed control cannot be activated

- No noticeable system limitation in UPEC

200438 1-9

UPEC

UPEC fault codes

Fault code Fault code description with possible cause Symptom

55-9 Unacceptable frequency of speed signal of

electronically controlled fan clutch (B335) on pin B30 of the ECU in relation to engine speed due to:

- interruption on pin B30

- short circuit to supply or to earth on pin B30

- fan leakage

- no supply voltage

56-1 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipe of cylinder 1

- defective/clogged injector of cylinder 1

- air in fuel system

- internal leakage of pump unit of cylinder 1

- clogged injector pipe of cylinder 1

- too low a combustion pressure in cylinder 1 caused by a mechanical defect of the engine (valve seal etc.)

56-2 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipe of cylinder 5

- defective/clogged injector of cylinder 5

- air in fuel system

- internal leakage of pump unit of cylinder 5

- clogged injector pipe of cylinder 5

- too low a combustion pressure in cylinder 5 caused by a mechanical defect of the engine (valve seal etc.)

56-3 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 1 and 5

- defective/clogged injectors of cylinders 1 and 5

- air in fuel system

- internal leakage of pump units of cylinders 1 and 5

- clogged injector pipes of cylinders 1 and 5

- too low a combustion pressure in cylinders 1 and 5 caused by a mechanical defect of the engine (valve seal etc.)

56-4 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipe of cylinder 3

- defective/clogged injector of cylinder 3

- air in fuel system

- internal leakage of pump unit of cylinder 3

- clogged injector pipe of cylinder 3

- too low a combustion pressure in cylinder 3 caused by a mechanical defect of the engine (valve seal etc.)

- Reduced engine power (coolant temperature may increase excessively as a result of which the coolant overheating safety may be activated)

- Irregular engine running and reduced engine power

DAVIE XD diagnostics manual

1-10

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

56-5 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 1 and 3

- defective/clogged injectors of cylinders 1 and 3

- air in fuel system

- internal leakage of pump units of cylinders 1 and 3

- clogged injector pipes of cylinders 1 and 3

- too low a combustion pressure in cylinders 1 and 3 caused by a mechanical defect of the engine (valve seal etc.)

56-6 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 3 and 5

- defective/clogged injectors of cylinders 3 and 5

- air in fuel system

- internal leakage of pump units of cylinders 3 and 5

- clogged injector pipes of cylinders 3 and 5

- too low a combustion pressure in cylinders 3 and 5 caused by a mechanical defect of the engine (valve seal etc.)

- Irregular engine running and reduced engine power

UPEC fault codes

56-7 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 1, 3 and 5

- defective/clogged injectors of cylinders 1, 3 and 5

- air in fuel system

- internal leakage of pump units of cylinders 1, 3 and 5

- clogged injector pipes of cylinders 1, 3 and 5

- too low a combustion pressure in cylinders 1, 3 and 5 caused by a mechanical defect of the engine (valve seal etc.)

56-8 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipe of cylinder 6

- defective/clogged injector of cylinder 6

- air in fuel system

- internal leakage of pump unit of cylinder 6

- clogged injector pipe of cylinder 6

- too low a combustion pressure in cylinder 6 caused by a mechanical defect of the engine (valve seal etc.)

- Irregular engine running and reduced engine power

200438 1-11

UPEC

UPEC fault codes

Fault code Fault code description with possible cause Symptom

56-9 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 1 and 6

- defective/clogged injectors of cylinders 1 and 6

- air in fuel system

- internal leakage of pump units of cylinders 1 and 6

- clogged injector pipes of cylinders 1 and 6

- too low a combustion pressure in cylinders 1 and 6 caused by a mechanical defect of the engine (valve seal etc.)

56-10 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 5 and 6

- defective/clogged injectors of cylinders 5 and 6

- air in fuel system

- internal leakage of pump units of cylinders 5 and 6

- clogged injector pipes of cylinders 5 and 6

- too low a combustion pressure in cylinders 5 and 6 caused by a mechanical defect of the engine (valve seal etc.)

- Irregular engine running and reduced engine power

DAVIE XD diagnostics manual

56-11 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 1, 5 and 6

- defective/clogged injectors of cylinders 1, 5 and 6

- air in fuel system

- internal leakage of pump units of cylinders 1, 5 and 6

- clogged injector pipes of cylinders 1, 5 and 6

- too low a combustion pressure in cylinders 1, 5 and 6 caused by a mechanical defect of the engine (valve seal etc.)

56-12 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 3 and 6

- defective/clogged injectors of cylinders 3 and 6

- air in fuel system

- internal leakage of pump units of cylinders 3 and 6

- clogged injector pipes of cylinders 3 and 6

- too low a combustion pressure in cylinders 3 and 6 caused by a mechanical defect of the engine (valve seal etc.)

- Irregular engine running and reduced engine power

1-12

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

56-13 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 1, 3 and 6

- defective/clogged injectors of cylinders 1, 3 and 6

- air in fuel system

- internal leakage of pump units of cylinders 1, 3 and 6

- clogged injector pipes of cylinders 1, 3 and 6

- too low a combustion pressure in cylinders 1, 3 and 6 caused by a mechanical defect of the engine (valve seal etc.)

56-14 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 3, 5 and 6

- defective/clogged injectors of cylinders 3, 5 and 6

- air in fuel system

- internal leakage of pump units of cylinders 3, 5 and 6

- clogged injector pipes of cylinders 3, 5 and 6

- too low a combustion pressure in cylinders 3, 5 and 6 caused by a mechanical defect of the engine (valve seal etc.)

56-15 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 1, 3, 5 and 6

- defective/clogged injectors of cylinders 1, 3, 5 and 6

- air in fuel system

- internal leakage of pump units of cylinders 1, 3, 5 and 6

- clogged injector pipes of cylinders 1, 3, 5 and 6

- too low a combustion pressure in cylinders 1, 3, 5 and 6 caused by a mechanical defect of the engine (valve seal etc.)

57-1 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipe of cylinder 2

- defective/clogged injector of cylinder 2

- air in fuel system

- internal leakage of pump unit of cylinder 2

- clogged injector pipe of cylinder 2

- too low a combustion pressure in cylinder 2 caused by a mechanical defect of the engine (valve seal etc.)

- Irregular engine running and reduced engine power

UPEC fault codes

200438 1-13

UPEC

UPEC fault codes

Fault code Fault code description with possible cause Symptom

57-2 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipe of cylinder 4

- defective/clogged injector of cylinder 4

- air in fuel system

- internal leakage of pump unit of cylinder 4

- clogged injector pipe of cylinder 4

- too low a combustion pressure in cylinder 4 caused by a mechanical defect of the engine (valve seal etc.)

57-3 Irregular engine running detected by the ECU due

to:

- fuel leak of injector pipes of cylinders 2 and 4

- defective/clogged injectors of cylinders 2 and 4

- air in fuel system

- internal leakage of pump units of cylinders 2 and 4

- clogged injector pipes of cylinders 2 and 4

- too low a combustion pressure in cylinders 2 and 4 caused by a mechanical defect of the engine (valve seal etc.)

61-8 Internal CAN fault in ECU - System reaction depending on the missing V

- Irregular engine running and reduced

DAVIE XD diagnostics manual

engine power

CAN data

62-2 No CAN message received from ABS/EBS ECU

relating to the engine torque control due to:

- communication problem with ABS/EBS ECU

Communication problem via V-CAN on pin B11 or pin B12 of the ECU due to:

- interruption on pin B11 or B12 of the ECU

- short circuit to supply on pin B11 or B12 of the ECU

Communication problem via V-CAN on pin B12 of the ECU due to:

- short circuit to earth on pin B12 of the ECU

63-2 No CAN message received from ABS/EBS ECU

relating to the engine braking function due to:

- communication problem with ABS/EBS ECU

Communication problem via V-CAN on pin B11 or pin B12 of the ECU due to:

- interruption on pin B11 or B12 of the ECU

- short circuit to supply on pin B11 or B12 of the ECU

Communication problem via V-CAN on pin B12 of the ECU due to:

- short circuit to earth on pin B12 of the ECU

- No noticeable system limitation in UPEC

- Rev counter gives no reading

- Thermometer gives no reading

- Rev counter gives no reading

- No noticeable system limitation in UPEC

- Rev counter gives no reading

- Thermometer gives no reading

- Rev counter gives no reading

1-14

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

65-2 No CAN message received from transmission

ECU due to:

- communication problem with transmission ECU

Communication problem via V-CAN on pin B11 or pin B12 of the ECU due to:

- interruption on pin B11 or B12 of the ECU

- short circuit to supply on pin B11 or B12 of the ECU

Communication problem via V-CAN on pin B12 of the ECU due to:

- short circuit to earth on pin B12 of the ECU

66-2 No CAN message received from transmission

ECU due to:

- communication problem with transmission ECU

Communication problem via V-CAN on pin B11 or pin B12 of the ECU due to:

- interruption on pin B11 or B12 of the ECU

- short circuit to supply on pin B11 or B12 of the ECU

- No noticeable system limitation in UPEC

- Rev counter gives no reading

- Thermometer gives no reading

- Rev counter gives no reading

- No noticeable system limitation in UPEC

- Rev counter gives no reading

- Thermometer gives no reading

UPEC fault codes

Communication problem via V-CAN on pin B12 of the ECU due to:

- short circuit to earth on pin B12 of the ECU

67-2 No CAN message received from transmission

ECU due to:

- communication problem with transmission ECU

Communication problem via V-CAN on pin B11 or pin B12 of the ECU due to:

- interruption on pin B11 or B12 of the ECU

- short circuit to supply on pin B11 or B12 of the ECU

Communication problem via V-CAN on pin B12 of the ECU due to:

- short circuit to earth on pin B12 of the ECU

68-1 No CAN message received from transmission

ECU due to:

- communication problem with transmission ECU

Communication problem via V-CAN on pin B11 or pin B12 of the ECU due to:

- interruption on pin B11 or B12 of the ECU

- short circuit to supply on pin B11 or B12 of the ECU

- Rev counter gives no reading

- No noticeable system limitation in UPEC

- Rev counter gives no reading

- Thermometer gives no reading

- Rev counter gives no reading

- No noticeable system limitation in UPEC

- Rev counter gives no reading

- Thermometer gives no reading

Communication problem via V-CAN on pin B12 of the ECU due to:

- short circuit to earth on pin B12 of the ECU

200438 1-15

- Rev counter gives no reading

UPEC

UPEC fault codes

Fault code Fault code description with possible cause Symptom

69-1 No communication with immobiliser when

switching on the ignition, or immobiliser code does not correspond with UPEC code due to:

- defective immobiliser

- ignition key not adjusted to the immobiliser

- immobiliser not matched to UPEC ECU

- voltage on pin B15 but no voltage on pins B3 and B4 of the ECU

Communication problem via V-CAN on pin B11 and/or pin B12 of the ECU due to:

- interruption on pin B11 and/or pin B12 of the ECU

- short circuit to supply on pin B11 of the ECU

Communication problem via V-CAN on pin B12 of the ECU due to:

- short circuit to supply on pin B12 of the ECU

71-1 Short circuit to supply of glow relay (G014) on pin

B10 of the ECU

71-2 Short circuit to earth of glow relay (G014) on pin

B10 of the ECU

71-8 Interruption in glow relay (G014) on pin B10 of the

ECU

73-1 Short circuit to supply of exhaust brake solenoid

valve (B192) on pin B9 of the ECU

- Engine starts but will not fire

- Several systems will output error messages in connection with the CAN communication

- Glow function cannot be activated

- Glow function permanently activated

- Glow function cannot be activated

- Exhaust brake cannot be activated

DAVIE XD diagnostics manual

73-2 Short circuit to earth of exhaust brake solenoid

valve (B192) on pin B9 of the ECU

No supply voltage on glow relay, exhaust brake and DEB due to faulty fuse

73-8 Interruption in exhaust brake solenoid valve

(B192) on pin B9 of the ECU

74-1 Short circuit to supply of connection point for DIP

stop indicator on pin B6 of the ECU

74-2 Short circuit to earth of connection point for DIP

stop indicator on pin B6 of the ECU

74-8 Interruption in connection point for DIP stop

indicator on pin B6 of the ECU

75-1 Short circuit to supply of DEB solenoid valve

(B247) on pin B18 of the ECU

75-2 Short circuit to earth of DEB solenoid valve

(B247) on pin B18 of the ECU

75-8 Interruption in DEB solenoid valve (B247) on pin

B18 of the ECU

77-1 Short circuit to supply of DEB solenoid valve

(B248) on pin A8 of the ECU

- Exhaust brake permanently activated

- Glow function cannot be activated

- Exhaust brake cannot be activated

- DEB cannot be activated

- Exhaust brake cannot be activated

- No noticeable system limitation in UPEC

- Reduced braking power of DEB

- DEB permanently activated

- Irregular engine running

- Reduced braking power of DEB

77-2 Short circuit to earth of DEB solenoid valve

(B248) on pin A8 of the ECU

77-8 Interruption in DEB solenoid valve (B248) on pin

A8 of the ECU

1-16

- DEB permanently activated

- Irregular engine running

- Reduced braking power of DEB

200438

UPEC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

78-1 Short circuit to supply of electronically controlled

fan clutch (B335) on pin A9 of the ECU

78-2 Short circuit to earth of electronically controlled

fan clutch (B335) on pin A9 of the ECU

78-8 Speed of electronically controlled fan clutch

(B335) cannot be controlled due to:

- interruption on pin A9 and/or A16 of the ECU

- interruption on pins A9 and B30 of the ECU

81-8 When the steering column switch is operated,

several input signals are present at the ECU at the same time due to:

- short circuit to supply on pin B34 of the ECU

When the steering column switch is operated, several input signals are present at the ECU at the same time due to:

- short circuit to supply on pin B32 of the ECU

When the steering column switch is operated, several input signals are present at the ECU at the same time due to:

- short circuit to supply on pin B33 of the ECU

When the steering column switch is operated, several input signals are present at the ECU at the same time due to:

- short circuit to supply on pin B24 of the ECU

- Fan speed too high

- Fan speed too low

- Fan speed is no longer controlled and increases to maximum

- Cruise control function cannot be activated

- At the steering column switch the "RES" function is overruled by the "Set+" function

- Cruise control function cannot be activated

- At the steering column switch the "RES" function is overruled by the "Set-" function

- "RES" function at the steering column switch cannot be activated

- Cruise control function cannot be activated

- Control function for engine speed control cannot be activated

UPEC fault codes

82-4 Input signal, via clutch pedal proximity switch

(E575), on pin B20 of the ECU remains present, despite the fact that the vehicle has already reached a certain speed. This is due to:

- defective proximity switch

- short circuit to supply on pin B20

- towing the vehicle with the engine running

83-1 Short circuit to supply on pin B28 of the ECU - Engine speed/torque limiting control cannot

83-8 Unacceptable load on pin B28 of the ECU due to:

- excessive contact resistance on connection point

- No system response when operating the clutch pedal

be activated

- Engine speed/torque limiting control cannot be activated

200438 1-17

UPEC

UPEC fault codes

DAVIE XD diagnostics manual

1-18

200438

UPEC

DAVIE XD diagnostics manual

2. UPEC CUSTOMER PARAMETERS

2.1 INTRODUCTION

Customer parameters

Note:

UPEC customer parameters

Customer parameter names and codes

Standard values

200438 2-1

UPEC

UPEC customer parameters DAVIE XD diagnostics manual

The total number of litres of fuel consumed can be read

on the "old" UPEC unit.

If this information is no longer present, it is also possible

to input the average fuel consumption directly via this

customer parameter, after which the total number of

litres of fuel consumed is automatically calculated.

This information is needed to enable DIP to display

again the correct average fuel consumption and the total

During production a standard value was programmed

which can be modified here. Password-protected.

Application example: foot board protection with refuse

collection vehicles.

number of litres of fuel consumed.

This fixes the maximum engine speed when the "set+"

function of the steering column switch or engine speed

control application connector (A068) is activated.

Maximum

value to be

set:

Minimum

value to be

set:

higher than the

highest value

of (2-27, 2-28,

2-29)

replacing the UPEC unit).

value indicated on the DIP display is not correct.

2.2 EXPLANATORY NOTES TO UPEC CUSTOMER PARAMETERS

2-2

Explanation Dependences: Notes

UPEC customer

parameter code

Settings relating to "limiting functions"

speed limiting" control function.

2-02 Setting of the maximum vehicle speed in the "vehicle

speed limiting for special applications" control function.

is possible in the "engine speed control" control function.

consumed up to that moment must be input again via

this customer parameter:

- after programming the UPEC unit (applicable when

- when reprogramming the UPEC unit because the

2-07 Setting of the idling speed.

2-10 Setting of the maximum vehicle speed in the "vehicle

2-11 Setting of the maximum vehicle speed at which driving

2-36 In the following situation the total number of litres of fuel

speed control" control function.

Settings relating to "engine speed control"

2-14 Setting of the maximum engine speed in the "engine

200438

UPEC

DAVIE XD diagnostics manual

This fixes the minimum engine speed when the "set-"

function of the steering column switch or engine speed

control application connector (A068) is activated.

If the setting of 2-15 is higher than 2-07, it is not possible

to increase the engine speed using the "set+" function if

the actual engine speed is lower than the value of 2-15.

This fixes the increase rate with activated engine speed

control when the "set+" function of the steering column

switch is activated.

This fixes the decrease rate with activated engine speed

control when the "set-" function of the steering column

switch is activated.

This fixes the increase and decrease rates with

activated engine speed control when the "set+" or "set-"

UPEC customer parameters

function of the steering column switch or engine speed

control application connector (A068) is activated (tip

function).

Maximum

value to be

set:

Minimum

value to be

set:

lower than the

lowest value of

(2-27, 2-28,

equal to or

higher than

2-07

lower than

2-14

lower than

2-14

lower than

2-29)

higher than

2-15

higher than

2-15

2-14

higher than

2-15

control function "engine speed control" using the

steering column switch.

control function "engine speed control" using the

steering column switch.

the control function "engine speed control" using the

steering column switch or with the aid of the engine

Explanation Dependences: Notes

UPEC customer

parameter code

200438 2-3

2-15 Setting of the minimum engine speed in the "engine

speed control" control function.

2-18 Setting the increase rate of the engine speed in the

2-19 Setting the decrease rate of the engine speed in the

2-20 Setting the engine speed increase and decrease rates in

speed control application connector (A068).

at the transitions between engine idling speed, "Nvar",

2-22 Setting of the engine speed increase and decrease rates

"N2" or "N3" through the engine speed control

application connector (A068).

the "RES" function of the steering column switch.

"N2" of the engine speed control application connector

(A068).

"N3" of the engine speed control application connector

(A068).

2-27 Setting of the desired engine speed corresponding to

2-28 Setting of the desired engine speed corresponding to

2-29 Setting of the desired engine speed corresponding to

UPEC

UPEC customer parameters DAVIE XD diagnostics manual

If "active" has been set, it will be possible to accelerate

when the engine speed control function is active. If "not

active" has been set, the accelerator pedal is ignored

when the engine speed control function is active. See

also 2-31.

This speed limitation functions only from UPEC software

version 6.4.

If "not active" has been selected, the parking brake is

ignored. If "active" has been selected, the engine speed

control is switched off and switching-on is disabled as

soon as the parking brake is put in the driving position.

If 2-33 has been set to "active" and 2-34 to "not active",

the control function "engine speed control" will not be

switched off when the brake pedal is subsequently

operated while the clutch pedal is being depressed.

If "not active" has been set, the clutch pedal is ignored;

if "active" has been set, the engine speed control is

switched off as soon as the clutch pedal is operated.

Maximum

value to be

set:

Minimum

value to be

set:

2-4

Explanation Dependences: Notes

UPEC customer

parameter code

Settings relating to the "engine speed control" switching on and switching off conditions

must be capable of responding to the accelerator pedal

when in the "engine speed control" control function.

2-30 This enables setting whether or not the electronic unit

2-31 Setting of the maximum engine speed attainable when

the control function "engine speed control" is active,

when the accelerator pedal is operated (if 2-30 has been

adjusted to the use of the accelerator pedal) and

connection point B28 of the electronic unit has been

connected to earth.

switching off condition for the "engine speed control"

control function.

2-32 Setting of the parking brake as switching on and

2-33 Setting of the brake pedal to prevent the control function

"engine speed control" from being switched off when the

brake pedal is operated.

off condition for the "engine speed control" control

function.

2-34 Setting of the clutch pedal as switching on and switching

from a detected fault must be displayed via a connection

point linked to a warning lamp, or via the V-CAN which

is connected to VIC. In the latter case VIC can generate

warnings on DIP.

Other settings relating to components(This customer parameter group only applies to components, not to trucks)

2-35 This enables setting whether engine warnings resulting

200438

UPEC

DAVIE XD diagnostics manual

3. SYSTEM INSPECTION WITH DAVIE XD

3.1 GENERAL

If the vehicle has been modified and the configuration changed, the electronic unit may have to be re-programmed. If the electronic unit is replaced, new UPEC software must be loaded into the unit using DAVIE. The immobiliser code for the fuel release is automatically "read" when the ignition is switched on.

System inspection with DAVIE XD

200438 3-1

UPEC

System inspection with DAVIE XD

3.2 ENGINE BRAKE TEST

Note:

1. This test must be done with the engine at operating temperature.

2. To obtain a good comparison, ensure that during the test neither the air-conditioning system compressor nor the air supply system are switched on or off.

During this test, the engine speed will be increased and decreased while the exhaust brake/DEB is activated. After this, the engine speed will again be increased and decreased, this time without the exhaust brake/DEB being activated. In both cases the fall in engine speed when slowing down will be measured per second. The ratio between the measured values with and without activated exhaust brake/DEB will be expressed as a percentage.

DAVIE XD diagnostics manual

3-2

200438

UPEC

DAVIE XD diagnostics manual

System inspection with DAVIE XD

3.3 SPEED VARIATION CONTROL TEST

One of the controls of the engine management system is the uniform operation of the engine via the speed variation control (this speed variation is recorded via the crankshaft sensor). Too large a variation in speed is prevented by correcting the quantity of injected fuel per cylinder. Due to a fault in the fuel system (bad injector, fuel leakage etc.) the fuel correction applied to a cylinder may have increased to such an extent that it falls outside the permitted specification.

Note:

Bear in mind the fact that a mechanical defect in a cylinder (compression loss) may affect the fuel correction for another cylinder that falls outside the permitted specification. Here the relation is as follows:

in case of compression loss of cylinder: 1 5 3 6 2 4

a positive fuel correction on cylinder: 3 6 2 4 1 5

In the "speed variation control" test the fuel correction of each cylinder is determined during a trip cycle (a trip cycle where a high engine load is required for a long period), on the basis of the total fuel consumption.

The "speed variation control test" in DAVIE is one of the diagnostic tools that can be applied in case of complaints about fuel consumption and reduced engine power. Other tests are the acceleration test and plotting a boost pressure curve; in principle these have to be carried out before the "speed variation control test" is carried out.

200438 3-3

UPEC

System inspection with DAVIE XD

DAVIE XD diagnostics manual

3-4

200438

AS TRONIC

DAVIE XD diagnostics manual

3 AS Tronic

CONTENTS

Page Date

1. AS TRONIC FAULT CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.2 Explanatory notes to AS Tronic fault codes. . . . . . . . . . . . . . . . . . . . . . . . 1-2 . . . . . 200438

2. SYSTEM INSPECTION WITH DAVIE XD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.2 'Transmission' menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 . . . . . 200438

2.3 'Clutch actuator' menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 . . . . . 200438

Contents

200438 1

AS TRONIC

Contents

DAVIE XD diagnostics manual

200438

AS TRONIC

DAVIE XD diagnostics manual

1. AS TRONIC FAULT CODES

1.1 INTRODUCTION

If the electronic unit detects a system fault, this fault is usually stored in the memory of the electronic unit as a fault code. Most system faults will also generate a warning.

AS Tronic fault codes

200438 1-1

AS TRONIC

AS Tronic fault codes

DAVIE XD diagnostics manual

1.2 EXPLANATORY NOTES TO AS TRONIC FAULT CODES

Fault code Fault code description with possible cause Symptom

84 Incorrect or missing vehicle speed signal via

message on CAN network

86 Incorrect or missing cruise control signal via

message on CAN network, with the cruise control function being active

91 Incorrect or missing accelerator pedal position

signal via message on CAN network

92 Incorrect or missing percentual engine torque

signal at current speed via message on CAN network

158 Excessive modulator supply voltage:

- pin A4 / A5

- In automatic mode the gearbox may shift down early or late

- No further system limitation

- Automatic mode available

- In automatic mode the gearbox may change gears accidentally during the cruise control function

- No noticeable system limitation

When driving:

- shifting quality may be affected

- automatic mode not available

At standstill:

- driving off from a stationary position is possible

- drive off and manoeuvring quality may be affected

- No noticeable system limitation

- Automatic mode available

When driving:

- no noticeable system limitation

- automatic mode available

Insufficient modulator supply voltage:

- pin A4 / A5

190 Incorrect or missing engine speed signal via

message on CAN network

At standstill:

- if this fault is present before switching on the ignition, the gearbox will not leave the selftest cycle. It is not possible to drive off.

When driving:

- no gear changes possible

At standstill:

- automatic mode not available

- no gear changes possible

- if a gear has been engaged, the modulator will shift the gearbox to neutral when the ignition is switched off

When driving:

- clutch is closed in a time-controlled fashion, which results in abrupt clutching

- automatic mode not available

At standstill:

- when driving off in the manoeuvring position, the clutch is operated in a time-controlled fashion, which results in abrupt clutching

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AS TRONIC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

512 Incorrect or missing desired engine torque signal

via message on CAN network (derived from engine management accelerator pedal position signal)

513 Incorrect or missing current engine torque signal

via message on CAN network

520 Incorrect or missing current intarder brake torque

via message on CAN network

Incorrect or missing current engine braking torque signal via message on CAN network

556 Incorrect or missing intarder configuration signal

via message on CAN network

Incorrect or missing engine brake configuration signal via message on CAN network

When driving:

- clutch may close abruptly after changing gears, which affects the shifting quality

- automatic mode not available

At standstill:

- driving off from a stationary position is possible

When driving:

- shifting quality when shifting up and down may have been affected

- automatic mode not available

At standstill:

- driving off from a stationary position is possible

- Automatic mode not available

- No further system limitation

- If the engine brake is active, this may affect the shifting quality when shifting is started

- Automatic mode not available

- No noticeable system limitation

- Automatic mode not available

- No noticeable system limitation

AS Tronic fault codes

558 Incorrect or missing signal from the accelerator

pedal idling switch via message on CAN network

559 Incorrect or missing kickdown signal via message

on CAN network

561 Incorrect or missing ASR engine control "active"

signal via message on CAN network

562 Incorrect or missing ASR differential brake control

"active" signal via message on CAN network

563 Incorrect or missing ABS "active" signal via

message on CAN network

595 Incorrect or missing cruise control "active" signal

via message on CAN network

597 Incorrect or missing service brake switch signal

via message on CAN network

904 Incorrect or missing front axle speed signal via

message on CAN network

When driving:

- automatic mode not available

- no noticeable system limitation when driving

At standstill:

- no response to the accelerator pedal as a result of which it is not possible to drive off from a stationary position

- Kickdown function not available

- No noticeable system limitation

- Automatic mode available

- Automatic mode not available

- No noticeable system limitation

- Automatic mode not available

- No noticeable system limitation

- Automatic mode not available

- No noticeable system limitation

- Automatic mode not available

- No noticeable system limitation

- Automatic mode not available

- When the vehicle is coasting, the clutch will be opened at a vehicle speed exceeding

1.5 km/h.

- Automatic mode available

- No noticeable system limitation

200438 1-3

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

1623 Incorrect or missing tachograph speed signal via

message on CAN network

3002 Modulator, selector valve Y2 for splitter range:

- short circuit to earth

- interruption

- short circuit to supply - Automatic mode not available

3003 Modulator, selector valve Y3 for splitter range:

- short circuit to supply

- interruption

- Automatic mode available

- If there is an internal speed signal, no noticeable system limitation

- Automatic mode not available

- If the fault occurs during shifting, the engaged gear will remain engaged. The modulator will try to shift the vehicle to a suitable gear, both at standstill and when driving. If this is not possible, the gearbox will be shifted to the neutral position.

- PTO 1/2 cannot be selected

- Manoeuvring position not available in D and R

- Automatic mode not available

DAVIE XD diagnostics manual

- short circuit to earth - Automatic mode not available

3004 Modulator, selector valve Y4 for gate selection:

- short circuit to earth

- interruption

- short circuit to supply - Automatic mode not available

- PTO 1/2 cannot be selected

-Manoeuvring position not available in D and R

- Automatic mode not available

- Manoeuvring position not available in D

1-4

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DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3005 Modulator, selector valve Y5 for gate selection:

- short circuit to earth

- short circuit to supply

- interruption

3006 Modulator, selector valve Y6 for main range:

- short circuit to earth

- short circuit to supply

- interruption

3007 Modulator, selector valve Y7 for main range:

- short circuit to earth

- short circuit to supply

- interruption

- Automatic mode not available

- If the fault occurs during shifting, the engaged gear will remain engaged. The modulator will try to shift the vehicle to an adjusted gear. If this is not possible, the gearbox will be shifted to the neutral position.

- Automatic mode not available

AS Tronic fault codes

3008 Modulator, selector valve Y8 for rear-mounted

range box:

- short circuit to earth

- short circuit to supply

- interruption

3009 Modulator, selector valve Y9 for rear-mounted

range box:

- short circuit to earth

- short circuit to supply

- interruption

3010 Modulator, air supply main valve Y10:

- short circuit to earth

- interruption

- short circuit to supply When driving:

- Automatic mode not available

- Shifting to low range is no longer possible

- Automatic mode not available

- Shifting to high range is no longer possible

When driving:

- no more gear changes possible

- the gearbox cannot shift to the neutral position: the engaged gear remains engaged.

At standstill:

- if the problem already exists when the ignition is switched on, the system is not available; it is therefore not possible to drive off.

- automatic mode not available

- shifting to all gears is possible

At standstill:

- driving off from a stationary position is possible

200438 1-5

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3012 Short circuit to earth or interruption at output for

power supply to reversing light relay (G350):

- pin C9 of actuating unit (D955)

Short circuit to supply at output for power supply to reversing light relay (G350):

- pin C9 of actuating unit (D955)

3017 Modulator, selector valve Y1 for transmission

brake:

- short circuit to earth

- interruption When driving:

- Actuating unit output switches off

- Reversing lights cannot be switched on

- Automatic mode remains available

- No noticeable system limitation

- Reversing lights continuously switched on

- Automatic mode remains available

- No noticeable system limitation

When driving:

- extended shifting time when shifting up (engine control now also synchronises when shifting up)

- shifting up blocked if the speed of the input shaft drops below the idling speed of the engine after shifting

- automatic mode not available

At standstill:

- extended self-test (mechanical position of the clutch more difficult to determine)

- extended shifting time when engaging a gear from neutral position

- extended PTO engaging time

- extended shifting time when shifting up (engine control now also synchronises when shifting up)

- shifting up blocked if the speed of the input shaft drops below the idling speed of the engine after shifting

- automatic mode not available

DAVIE XD diagnostics manual

At standstill:

- extended self-test (mechanical position of the clutch more difficult to determine)

- extended shifting time when engaging a gear from neutral position

- driving off from a stationary position is possible

- short circuit to supply When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- driving off from a stationary position is possible

- extended shifting time, air supply main valve is not switched on until the clutch has been opened

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DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3018 Short circuit to earth or interruption of selector

valve Y17 (slowly open clutch):

- pin B9 of modulator (D954)

Short circuit to supply of selector valve Y17 (slowly open clutch):

- pin B9 of modulator (D954)

3019 Short circuit to earth or interruption of selector

valve Y15 (close clutch slowly):

- pin B7 of modulator (D954)

Short circuit to supply of selector valve Y15 (close clutch slowly):

- pin B7 of modulator (D954)

3020 Short circuit to earth or interruption of selector

valve Y16 (open clutch rapidly):

- pin B12 of modulator (D954)

Short circuit to supply of selector valve Y16 (open clutch rapidly):

- pin B12 of modulator (D954)

3021 Short circuit to earth or interruption of selector

valve Y14 (close clutch rapidly):

- pin B8 of modulator (D954)

Short circuit to supply of selector valve Y14 (close clutch rapidly):

- pin B8 of modulator (D954)

3022 Short circuit to earth or interruption of power

supply to internal speed sensor (F705) or actuating unit (D955):

- pin B18 of modulator (D954)

- pin A11 of modulator (D954)

- Modulator output is switched off

- Selector valve Y16 (quickly open clutch) takes over function

- Reduced comfort during clutching

- No automatic mode available

- No more gear changes possible, system not available

- At standstill the gearbox will automatically be shifted to the neutral position if the clutch is open

- Modulator output is switched off

- Selector valve Y14 (close clutch rapidly) takes over function

- Reduced comfort during clutching

- No automatic mode available

- No more gear changes possible, system not available

- When driving, the required clutch position is controlled by selector valves (clutch open)

- At standstill the gearbox is automatically shifted to the neutral position after a few seconds

- Modulator output is switched off

- Selector valve Y17 (open clutch slowly) takes over function

- Extended shifting time

- Reduced comfort during clutching

- No automatic mode available

- Actuating unit (D955) is switched off

- System not available

- Modulator output is switched off

- Selector valve Y15 (close clutch slowly) takes over function

- Extended shifting times

- Reduced comfort during clutching

- No automatic mode available

- No more gear changes possible, system not available

- When driving, the required clutch position is controlled by selector valves (clutch open)

- At standstill the gearbox is automatically shifted to the neutral position after a few seconds

- No more gear changes possible

- If the vehicle comes to a halt, the clutch is automatically opened

- Gearbox shifts automatically to the neutral position

- System not available

AS Tronic fault codes

Short circuit to supply of internal speed sensor (F705) or actuating unit (D955):

- pin B18 of modulator (D954)

- pin A11 of modulator (D954)

200438 1-7

- Fault is recognised during self-test when switching ignition off/on

- No noticeable system limitation

- Automatic mode remains available

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3026 Engine configuration not recognised via message

on CAN network due to:

- communication problem with UPEC ECU

3027 Incorrect or missing engine configuration signal

via message on CAN network

3033 Engine brake configuration signal not recognised

via message on CAN network due to:

- communication problem with UPEC ECU

3059 Incorrect PTO 1 status signal via message on

CAN network, in the following situation:

- PTO 1 status signal active

- no request (PTO switch) for PTO 1

- no actuation (VIC ECU) of PTO 1

3060 Incorrect PTO 2 status signal via message on

CAN network, in the following situation:

- PTO 2 status signal active

- no request (PTO switch) for PTO 2

- no actuation (VIC ECU) of PTO 2

3061 Incorrect PTO 1 status signal via message on

CAN network, in the following situation:

- PTO 1 status signal active

- request (PTO switch) for disengaging PTO 1 is present

3062 Incorrect PTO 2 status signal via message on

CAN network, in the following situation:

- PTO 2 status signal active

- request (PTO switch) for disengaging PTO 2 is present

- Automatic mode remains available, but reduced shifting characteristics are possible

- Downshift speed may be too low, which results in reduced shifting comfort

- Reduced comfort during declutching

- Automatic mode remains available, but reduced shifting characteristics are possible

- Downshift speed may be too low, which results in reduced shifting comfort

- Reduced comfort during declutching

- No noticeable system limitation

- Automatic mode available

- With a PTO 1 request the PTO 1 output of the VIC ECU is actuated normally

- No noticeable system limitation

- Automatic mode available

- With a PTO 2 request the PTO 2 output of the VIC ECU is actuated normally

- No noticeable system limitation

- Automatic mode available

When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- If the vehicle comes to a halt, the clutch is automatically opened

- at standstill the gearbox is automatically shifted to the neutral position

- no more gear changes possible

- system not available

When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- If the vehicle comes to a halt, the clutch is automatically opened

- at standstill the gearbox is automatically shifted to the neutral position

- no more gear changes possible

- system not available

DAVIE XD diagnostics manual

3063 Missing PTO 1 status signal via message on CAN

network, in the following situation:

- request (PTO switch) for PTO 1 is present

- actuation of PTO 1 solenoid valve via VIC ECU

3064 Missing PTO 2 status signal via message on CAN

network, in the following situation:

- request (PTO switch) for PTO 2 is present

- actuation of PTO 2 solenoid valve via VIC ECU

1-8

- Actuation of PTO 1 is discontinued

- PTO 1 is not available

- No noticeable system limitation

- Automatic mode available

- Actuation of PTO 2 is discontinued

- PTO 2 not available

- No noticeable system limitation

- Automatic mode available

200438

AS TRONIC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3090 Internal modulator fault (D954) due to:

- communication problem between internal processors of modulator (D954)

- basic software 1 and 2 of modulator (D954) has been corrupted

3091 Incorrect or missing ABS/EBS signal via

message on CAN network due to:

- communication problem with ABS/EBS

3098 Incorrect or missing speed signal from the

gearbox input shaft (measured by the integrated speed sensor in the modulator (D954)) due to:

- defective integrated speed sensor in the modulator

- incorrect mechanical operation of the transmission brake clutch

When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- If the vehicle comes to a halt, the clutch is automatically opened

- at standstill the gearbox is automatically shifted to the neutral position

- no more gear changes possible

- system not available

- Automatic mode not available

- No noticeable system limitation

When driving:

- extended shifting times

- reduced shifting comfort when changing gears; when shifting up and down, the clutch in neutral position will be partially closed to adjust the speed of the input shaft to that of the engine

- with engaged gear the input shaft speed signal is replaced with the output shaft speed signal

- automatic mode not available

AS Tronic fault codes

3099 Incorrect or missing output shaft speed signal

(measured by the internal speed sensor (F705)) due to:

- defective internal speed sensor (F705)

3101 Incorrect or missing input shaft speed signal and

incorrect or missing output shaft speed signal due to:

- defective integrated speed sensor in the modulator

- incorrect mechanical operation of the transmission brake clutch

- defective internal speed sensor (F705)

- defective modulator (D954)

3102 The ratio between the speed signal of the input

shaft and that of the output shaft is not acceptable in relation to the engaged gear ratio.

At standstill:

- extended shifting time when engaging a gear

- reduced clutch comfort when closing the clutch

- Internal speed signal is replaced with the vehicle speed signal from the MTCO sensor (F533)

- No noticeable system limitation

- Automatic mode available

When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- If the vehicle comes to a halt, the clutch is automatically opened

- at standstill the gearbox is automatically shifted to the neutral position

- no more gear changes possible

- system not available

When driving:

- no more gear changes possible; the gearbox tries to automatically shift to the neutral position

- automatic mode not available

At standstill:

- driving off from a stationary position in automatically selected drive-off gears is possible

200438 1-9

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3107 Incorrect or missing supply voltage of the clutch

travel sensor in the clutch unit:

- pin B15 of the clutch unit (B385)

3108 Internal fault in actuating unit (D955) due to:

- unacceptable gear lever position sensor signals in relation to each other

- defective selector switch (E590)

When driving:

- reduced clutch comfort when opening and closing the clutch; this is done in a timecontrolled fashion

- automatic mode not available

At standstill:

- shunting is not possible

- if driving off from a stationary position does not take place within a certain period of time, the gearbox will be automatically shifted to the neutral position. The drive-off gear must then be selected manually.

- reduced clutch comfort when closing the clutch

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- when driving off, the drive-off gear will be selected in accordance with the position of the selector switch, both forward and reverse

- after the ignition has been switched off, the gearbox will be shifted to the neutral position

- the system will not be available when the ignition is switched on

DAVIE XD diagnostics manual

3110 Incorrect or missing internal CAN signal due to:

- communication problem with internal CAN system

- internal short circuit on pin C1 or C3 of actuating unit (D955)

- internal short circuit on pin A3 or A6 of modulator (D954)

3111 No recognition of "realtime" signal (time/date) via

message on CAN network due to:

- communication problem with UPEC ECU

3112 Incorrect or missing "realtime" signal (time/date)

via message on CAN network (this signal is used to calculate the clutch load):

- clutch load can no longer be checked

3113 Intarder configuration signal not recognised via

message on CAN network due to:

- communication problem with EST 42 ECU

- incorrect programming of AS Tronic basic software

When switching on the ignition:

- fault is recognised during self-test

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the last selected drive-off gear is engaged; it is only possible to drive in this gear. If reverse was the last selected drive-off gear, the gearbox is automatically shifted to the neutral position.

- No noticeable system limitation

- Automatic mode available

- No noticeable system limitation

- Automatic mode available

- No noticeable system limitation

- Automatic mode not available

1-10

200438

AS TRONIC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3114 Clutch closes unexpectedly during standstill and

with engaged gear. Current clutch position changes without the solenoid valves of the clutch unit being actuated. The clutch unit travel sensor transmits clutch movements to the modulator.

- Poor freedom of movement of clutch plate on the keyways of the input shaft

- During controlled closing of the clutch, the clutch remains temporarily open due to insufficient mechanical freedom of movement of the clutch (heavy point)

- Mechanical fault of clutch unit solenoid valves

3117 It is not possible to teach-in the clutch during the

self-test. No change in clutch position is detected, despite actuation of solenoid valves Y14 to Y17 in the clutch unit. Possible cause:

- internal modulator fault (D954)

- internal clutch unit fault (B385)

- electrical fault in wiring harness between modulator and clutch unit

- incorrect clutch travel sensor signal, engine speed signal or input shaft speed signal

3118 Clutch does not open despite the fact that

solenoid valves Y16 and Y17 are actuated:

- internal modulator fault (D954)

- internal clutch unit fault (B385)

- electrical fault in wiring harness between modulator and clutch unit

- incorrect clutch travel sensor signal, engine speed signal or input shaft speed signal

3119 Clutch does not close despite the fact that

solenoid valves Y14 and Y15 are actuated. The clutch cannot transmit any engine torque.

- Clutch travel sensor does not recognise the closing motion of the clutch when driving or when the engine is idling

- Input shaft speed is not equal to the engine speed

- Admissible solenoid valve switch-on time is exceeded

3120 Selector valve Y17 (slowly open clutch) is not

working despite actuation (3x):

- mechanical fault of selector valve Y17

3121 Selector valve Y16 (open clutch rapidly) is not

working despite actuation (3x):

- mechanical fault of selector valve Y16

3122 Selector valve Y15 (close clutch slowly) is not

working despite actuation (3x):

- mechanical fault of selector valve Y15

At standstill:

- gearbox is automatically shifted to the neutral position

- once the neutral position has been reached, it will be possible to drive on after the selector switch has been changed from position D-N-D

- automatic mode not available

- System is not available

When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, a new effort is made to open the clutch

- at standstill the gearbox is automatically shifted to the neutral position

- system is not available

When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch is opened

- at standstill the gearbox is automatically shifted to the neutral position

- system is not available

- Function is taken over by redundant selector valve Y16

- Reduced shifting comfort

- Automatic mode not available

- Function is taken over by redundant selector valve Y17

- Reduced shifting comfort

- Automatic mode not available

- Function is taken over by redundant selector valve Y14

- Reduced shifting comfort

- Automatic mode not available

AS Tronic fault codes

200438 1-11

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3123 Selector valve Y14 (close clutch rapidly) is not

working despite actuation (3x):

- mechanical fault of selector valve Y14

3124 Incorrect clutch travel sensor signal due to:

- clutch travel sensor signal being outside ranch

- increasing input shaft speed during standstill, with the clutch sensor detecting an opened clutch

- unacceptable difference between engine speed and input shaft speed, with clutch being open

3126 Incorrect pressure sensor signal from integrated

pressure sensor in the modulator (D954) due to:

- defective pressure sensor in modulator

- pressure sensor signal outside range

- defective modulator (D954)

3127 Incorrect ECU temperature signal from integrated

temperature sensor in the modulator (D954) due to:

- defective temperature sensor in modulator

- temperature sensor signal outside range

- defective modulator (D954)

3129 Position sensor signal, main range, in the

modulator (D954):

- short circuit to earth

- short circuit to supply

- interruption

- Function is taken over by redundant selector valve Y15

- Reduced shifting comfort

- Automatic mode not available

When driving:

- clutch is opened and closed in a timecontrolled fashion

- automatic mode not available

At standstill:

- shunting is not possible

- reduced clutch comfort when closing the clutch as you drive off

- System available, provided there is sufficient air supply to the modulator

- Teaching in of position sensors of selector valves and clutch position during the selftest takes more time than usually

- Automatic mode not available

- No noticeable system limitation

- Automatic mode not available

When driving:

- if the fault occurs during shifting, the signal "gear engaged" from the main range position sensor will be generated in a timecontrolled fashion

- no more gear changes possible, except from neutral position

- automatic mode not available

DAVIE XD diagnostics manual

1-12

At standstill:

- the possibility to shift to the neutral position is monitored by testing the engaging cylinder for gate selection by actuating selector valves Y4 and Y5

- driving off from a stationary position is possible

- to prevent tooth-to-tooth contact, the air supply main valve Y10 and main range selector valves Y6/Y7 remain engaged until the clutch position during closing exceeds a particular value

200438

AS TRONIC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3132 Teach-in fault, main range position sensor, during

self-test:

- main range position sensor signal outside range

- if there is insufficient air pressure and the air pressure sensor is not defective, an effort is made to shift the main range to the neutral position

- internal modulator fault (D954); selector valves Y6/Y7 are not actuated correctly

- mechanically defective gearbox

3133 Position sensor signal, gate selection in the

modulator (D954):

- short circuit to earth

- short circuit to supply

- interruption

3136 Teach-in fault, gate selection position sensor,

during self-test:

- if sufficient air pressure is available, the gate selection sensor signal is out of range after 3 failed efforts to select another gate position

- if insufficient air pressure is available, the gate selection sensor signal is out of range after a certain waiting time and a new effort

- internal modulator fault (D954); selector valves Y4/Y5 are not actuated correctly

- mechanically defective gearbox

3137 Position sensor signal, rear-mounted range box

in the modulator (D954):

- short circuit to earth

- short circuit to supply

- interruption

- With ignition off, the gearbox is shifted to the neutral position

- With ignition on, the selector valves Y6/Y7 (main range) and Y10 (air supply) are actuated. As a result the gearbox must be shifted to the neutral position. This takes place 3 times.

- Mechanical neutral position is measured by the main range position sensor. If this signal is out of range and there is sufficient air pressure (air pressure sensor in modulator), a teach-in fault is stored.

- System not available

When driving:

- only the gears opposite to the reverse gear can be shifted

- automatic mode not available

At standstill:

- only the drive-off gears opposite to the reverse gear can be shifted

- reverse gear not available

- In case of an electrical fault in selector valves Y4/Y5 for gate selection the ECU tries to engage the forward gears of the main range: 12AS - 2 16AS - 3

- If the forward gears cannot be engaged, the ECU will try to engage the reverse gear gate of the main range: 12AS - R/1 range; 16AS - 1st/2nd gear of main range

- If it is possible to teach-in a gate, only the gears in that particular gate can be shifted

- If this is not possible, the system is not available

- Automatic mode not available

When driving:

- only gears in the high or low range can be shifted

- no shifting up/down is possible when driving

- if the fault occurs when shifting up/down, the gears will be shifted in a time-controlled and delayed fashion

- Automatic mode not available

AS Tronic fault codes

nd/3rd

rd/4th

gear of main range

gear of main range;

gear of main

At standstill:

- all drive-off gears can be engaged

- main valve Y10 and rear-mounted range box valve Y8 or Y9 remain actuated until the clutch has reached a certain position. This prevents tooth-to-tooth contact of the rearmounted range box

200438 1-13

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3140 Teach-in fault, rear-mounted range box position

sensor, during self-test:

- if there is sufficient air pressure, the sensor signal of the rear-mounted range box is out of range

- internal modulator fault (D954); selector valve Y8 or Y9 is not actuated correctly

- mechanically defective gearbox

3141 Position sensor signal, splitter range in the

modulator (D954):

- short circuit to earth

- short circuit to supply

- interruption

3144 Teach-in fault, splitter range position sensor,

during self-test:

- if there is sufficient air pressure, the sensor signal of the splitter range is out of range

- internal modulator fault (D954); selector valve Y2 or Y3 is not actuated correctly

- mechanically defective gearbox

3145 Rear-mounted range box does not disengage

from the last selected position after actuation:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y8/Y9 are not actuated correctly

- mechanically defective gearbox

- With ignition off, the gearbox remains in the last selected range

- Through actuation of main valve Y10 and selector valve Y8 or Y9 for the rear-mounted range box, the position of the engaged range is ensured once again

- If it is only possible to teach-in the low range, gears can only be shifted in this range

- If it is only possible to teach-in the high range, gears can only be shifted in this range

- If it is impossible to teach-in either the low or the high range, no more gears can be shifted

- System is not available

- It is not possible to shift gears in the splitter range

- Driving is only possible in the last selected position of the splitter range: K1 or K2. If we assume that K2 is the last selected position, the PTO function will not be available

- If the selected gear cannot be engaged, the next higher gear is engaged, if possible

- If the fault occurs when shifting the splitter range, this range will be shifted in a timecontrolled and delayed fashion

- Automatic mode not available

- With ignition off, the gearbox remains in the last selected range

- Through actuation of main valve Y10 and selector valve Y2 or Y3 for the splitter range, the position of the engaged range is ensured once again

- If it is only possible to teach-in the low range, only low-range gears can be engaged

- If it is only possible to teach-in the high range, only high-range gears can be engaged

- If it is impossible to teach-in either the low or the high range, no more gears can be shifted

- System is not available

When driving:

- when shifting from the low to the high range, the highest gear of the low range is engaged

- when shifting from the high to the low range, the lowest gear of the high range is engaged

- automatic mode not available

DAVIE XD diagnostics manual

1-14

At standstill:

- if it is impossible to shift the low range, the lowest gear in the high range is selected as drive-off gear

- no reverse shifting possible in the high range

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DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3146 Rear-mounted range box does not disengage

from the last selected position after actuation:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y8/Y9 are not actuated correctly

- mechanically defective gearbox

3147 Rear-mounted range box neither shifts in the high

range nor in the low range within a certain period of time:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y8/Y9 are not actuated correctly

- mechanically defective gearbox

3148 Splitter range does not disengage from last

selected position:

- insufficient air pressure available

- internal modulator fault (D954); selector valve Y2 or Y3 is not actuated correctly

- mechanically defective gearbox

When driving:

- if the rear-mounted range box is not switched over to the other position after 3 attempts, the highest gear of the low range is engaged when shifting from the low to the high range. When shifting from the high to the low range, the lowest gear of the high range is engaged.

- automatic mode not available

At standstill:

- if it is impossible to shift the low range, the lowest gear in the high range is selected as drive-off gear

- new attempts to shift the rear-mounted range box can still be made

- If the selected range cannot be engaged after 3 attempts, the last shifted range will be engaged

- If the last selected range can no longer be engaged either, the gearbox will shift to the neutral position

- New attempts to shift the rear-mounted range box can still be made

- Automatic mode not available

When driving:

- if the selected gear cannot be engaged, the next higher gear is engaged, if possible

- only the gears in the last selected position of the splitter range can be engaged

- automatic mode not available

AS Tronic fault codes

3149 Splitter range does not disengage from the last

selected position after actuation:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y2/Y3 are not actuated correctly

- mechanically defective gearbox

3150 Splitter range neither shifts in the high range nor

in the low range (K1 or K2) within a certain period of time:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y2/Y3 are not actuated correctly

- mechanically defective gearbox

At standstill:

- only the drive-off gears in the last selected position of the splitter range can be engaged

When driving:

- if the selected gear cannot be engaged, the next higher gear is engaged, if possible

- only the gears in the last selected position of the splitter range can be engaged

- automatic mode not available

At standstill:

- only the drive-off gears in the last selected position of the splitter range can be engaged

- Fault is stored during standstill

- System is not available

200438 1-15

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3151 Gate selection cylinder does not disengage from

the last selected gate after actuation:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y4/Y5 are not actuated correctly

- mechanically defective gearbox

3152 Gate selection cylinder does not disengage from

the last selected gate after actuation:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y4/Y5 are not actuated correctly

- mechanically defective gearbox

When driving:

- if the fault occurs during shifting, the gearbox will shift down to the last selected gear

- if the previous gear cannot be engaged because the speed is too high, the gear closest to the previous one is engaged

- if the highest possible gear cannot be engaged because the speed is too high, the gearbox will automatically shift to the neutral position

- automatic mode not available

At standstill:

- if the desired drive-off gear cannot be engaged, the gearbox will automatically shift to the neutral position

- a new drive-off gear can only be selected using the selector switch

When driving:

- selection cylinder returns to the last selected position and the gearbox shifts back to the last engaged gear

- if the last selected gear cannot be engaged because the speed is too high, the gear closest to the previous one is engaged

- if the highest possible gear cannot be engaged because the speed is too high, the gearbox will automatically shift to the neutral position

- automatic mode not available

DAVIE XD diagnostics manual

3153 Gate selection cylinder does not shift to new or

previous end position within a certain period of time:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y4/Y5 are not actuated correctly

- mechanically defective gearbox

3154 Main range sensor signal still displays "gear

engaged", with the clutch opened and the gearbox shifted to the neutral position:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y6/Y7 are not actuated correctly

- mechanically defective gearbox

At standstill:

- if the desired drive-off gear cannot be engaged, the gearbox will automatically shift to the neutral position

- Both at standstill and when driving the gearbox will automatically shift to the neutral position

- A new gear must be selected using the selector switch

- If no gate can be selected, the system is not available

- Automatic mode not available

When driving:

- clutch only closes in the last selected gear

- automatic mode not available

At standstill:

- shifting is not possible until the neutral position signal has been recognised

- driving off from a stationary position in the current gear is possible, provided it is equal to or lower than the lowest gear of the high range

1-16

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DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3155 Main range does not switch in selected gear:

- insufficient air pressure available

- internal modulator fault (D954); selector valves Y6/Y7 are not actuated correctly

- mechanically defective gearbox

3156 Main range engages a gear which does not

correspond with the position sensor signal from the main range

3157 Gate selection sensor signal changes when

driving, without a new gear being selected

3158 Main range sensor signal changes when driving,

without a new gear being selected

3159 The rear-mounted range box sensor signal

changes when driving, without a new gear being selected

- Gearbox does not disengage from the neutral position within a certain period of time or the selected gear is not reached within a certain period of time

- If the above fault occurs when driving or during standstill, the gearbox will automatically shift to the neutral position

- Automatic mode not available

- When driving and at standstill the gearbox is automatically shifted to the neutral position If the neutral position cannot be reached, the clutch will remain open.

- Automatic mode not available

- Main valve Y10 and selector valve Y4 or Y5 for gate selection are actuated cyclically to ensure the position of the engaged gear

- Automatic mode available

- Main valve Y10 and selector valve Y6 or Y7 for main range are actuated to ensure the position of the engaged gear

- If the last selected gear can no longer be engaged mechanically, a gear corresponding with the current vehicle speed is shifted

- Automatic mode available

- Main valve Y10 and selector valve Y8 or Y9 for rear-mounted range box are actuated to ensure the position of the engaged gear

- If the last selected gear can no longer be engaged mechanically, a gear corresponding with the current vehicle speed is shifted

- Automatic mode available

AS Tronic fault codes

3160 The splitter range sensor signal changes when

driving, without a new gear being selected

3163 Incorrect or missing engine speed increase signal

via message on CAN network

200438 1-17

- Main valve Y10 and selector valve Y2 or Y3 for splitter range and Y6 or Y7 for main range are actuated to ensure the position of the engaged gear

- If the last selected gear can no longer be engaged mechanically, a gear corresponding with the current vehicle speed is shifted

- Automatic mode available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- driving off from a stationary position is possible, although the clutch and shifting comfort will be affected

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3166 Incorrect accelerator pedal potentiometer signal

via message on CAN network:

- accelerator pedal position exceeds stationary position and stationary signal is active

3169 Post-switch function for supply voltage of

modulator (D954) does not switch off:

- pins A11 and B18 of modulator (D954) will still receive supply voltage after the ignition has been switched off

- modulator outputs cannot be switched

3170 Incorrect modulator supply voltage or incorrect

post-switch function for modulator supply voltage during self-test:

- pin A4/A5 of modulator (D954) without supply voltage when ignition is switched on and off

- pins A11 and B18 of modulator (D954) without supply voltage when the ignition is switched on

When driving:

- shifting is possible

- automatic mode not available

At standstill:

- driving off from a stationary position and shunting are not possible

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

- When driving and at standstill all modulator and clutch unit switching is blocked

- Current shifting and clutch positions are maintained

- System not available

DAVIE XD diagnostics manual

3175 Incorrect supply voltage on modulator, power

supply after ignition, with ignition turned on and idling engine:

- pin A1 of modulator (D954)

3177 No CAN communication possible between any

vehicle systems due to problems with the V-CAN:

- short circuit to earth, short circuit to supply or interruption on pin A8/A12 and/or pin A13/ A14 of modulator

- defective modulator (D954)

When driving:

- no more gear changes possible

- automatic mode not available

At standstill:

- if the engine is idling, the drive-off gears (forward and reverse) can be engaged

- if the engine is not running, the gearbox automatically shifts to the neutral position and the modulator switches off

- when switching the ignition off and on, the self-test will not be finished successfully and the system will not be available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

1-18

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DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3178 Warning CAN communication between all vehicle

systems possibly not OK

3179 Overloaded CAN communication system

between all vehicle systems. Not all CAN messages can be sent in the same cycle.

3180 No CAN message received from engine

management (UPEC) due to:

- communication problem with the engine management (UPEC)

3181 No CAN message received from engine

management (UPEC) due to:

- communication problem with the engine management (UPEC)

- When driving:

- no gear changes possible

- automatic mode not available

- At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

AS Tronic fault codes

3182 Incorrect or missing cruise control vehicle speed

signal received via CAN message due to:

- communication problem with the engine management (UPEC)

3183 Incorrect or missing engine brake signal received

via CAN message from engine management (UPEC) due to:

- communication problem with the engine management (UPEC)

200438 1-19

- Wheel speed signals are missing

- Automatic mode not available

- When the vehicle is coasting, the clutch will be opened at a vehicle speed exceeding

1.5 km/h.

- If the engine brake is active, this may affect the shifting quality when shifting is started

- No further system limitation

- Automatic mode not available

AS TRONIC

AS Tronic fault codes

Fault code Fault code description with possible cause Symptom

3184 No CAN message received from the intarder

(EST 42) due to:

- communication problem with intarder (EST 42)

3188 Internal modulator fault (D954) due to:

- missing or defective basic program(s)

3189 Internal modulator fault (D954) due to:

- missing or defective basic program(s)

3190 Internal modulator fault (D954) due to:

- missing or defective basic program(s)

- fault recognised during self-test

- No noticeable system limitation

- Automatic mode not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

DAVIE XD diagnostics manual

3191 Internal modulator fault (D954) due to:

- missing or defective basic program(s)

- fault recognised during self-test

3192 Internal modulator fault (D954) due to:

- communication problem between processors in modulator

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

- If the fault still occurs after the ignition has been switched off and on, an average driveoff gear will be selected when driving off from a stationary position

- No noticeable system limitation

- Automatic mode not available

1-20

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DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

3193 The modulator temperature measured by the

integrated temperature sensor is too high:

- temperature > 130 degrees Celsius

3194 Front axle speed signals not recognised via

message on CAN network

3198 Relative wheel speed sensor signals not

recognised via message on CAN network

3199 No CAN message received from ABS/EBS unit

due to:

- communication problem with ABS/EBS

3210 No CAN message received from the MTCO due

to:

- communication problem with the MTCO

3227 Internal modulator fault (D954) due to:

- missing or defective basic program(s)

- fault recognised during self-test

When driving:

- no gear changes possible

- automatic mode not available

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

- No noticeable system limitation

- Automatic mode not available

- No noticeable system limitation

- Automatic mode available

- An average drive-off gear is selected when driving off from a stationary position

- No noticeable system limitation

- Automatic mode available

- No noticeable system limitation, if there is a redundant internal speed signal

- Automatic mode available

When driving:

- no gear changes possible

- automatic mode not available

AS Tronic fault codes

3235 No PTO active signal received by AS Tronic ECU

from VIC via CAN message due to:

- communication problem with the VIC

3236 No CAN message received from the VIC due to:

- communication problem with the VIC

3237 No CAN message received from the VIC due to:

- communication problem with the VIC

At standstill:

- if the vehicle comes to a halt, the clutch will open and the gearbox is automatically shifted to the neutral position

- driving off from a stationary position is not possible

- system is not available

- No PTO 1 and PTO 2 actuation possible

- No PTO 1 actuation possible

- No PTO 2 actuation possible

200438 1-21

AS TRONIC

AS Tronic fault codes

DAVIE XD diagnostics manual

1-22

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DAVIE XD diagnostics manual

2. SYSTEM INSPECTION WITH DAVIE XD

2.1 GENERAL

If the tyre size is changed or if the vehicle is adjusted in such a way that the configuration is changed, the electronic unit may have to be reprogrammed.

System inspection with DAVIE XD

200438 2-1

AS TRONIC

System inspection with DAVIE XD

2.2 'TRANSMISSION' MENU

The 'Transmission' menu is subdivided into two tests:

- static selector shaft position test

- dynamic selector shaft position test

Both tests are used to check the mechanical operation of the AS Tronic gearbox. This is done by reading the position of all selector shafts in gears that have been determined beforehand. These positions are shown on the DAVIE display by means of a position value, the so-called INC (increment). Upon the start of both tests the accessory test report needs to be printed. The measured position values should be incorporated in the test report, so that the mechanical operation of the gearbox can be evaluated.

Static selector shaft position test

This test is carried out with a stationary vehicle and running engine. Using the "+" and "-" buttons on the DAVIE display the gearbox can be shifted up and down respectively. Changing between RL and RH is done by means of button "Reverse gears". In this way the desired gears of the relevant test report can be selected. Per selected gear the measured position values can be compared with the correct position values that are stated between brackets in the test report.

DAVIE XD diagnostics manual

Dynamic selector shaft position test

If no appreciable deviations are found in the static selector shaft position test, the dynamic selector shaft position test can be carried out subsequently. This test is carried out while driving with a loaded gearbox. Again, the accessory test report should be printed (both test reports are identical, however the test conditions differ). While driving, the desired gears of the relevant test report can be selected using the operating unit. Per selected gear the measured position values can be compared with the correct position values that are stated between brackets in the test report.

2-2

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DAVIE XD diagnostics manual

2.3 'CLUTCH ACTUATOR' MENU

This test provides an indication of the performance of the clutch/clutch actuator, and can best be carried out on a moving vehicle.

The "absolute clutch stroke" is the clutch stroke from a fully closed to a fully opened position, expressed in mm. The "relative clutch stroke" indicates the position of the clutch in % instead of mm. The "clutch status" indicates whether at that moment the clutch is "opened" or "closed" or whether the clutch "slips".

The above measurements are closely connected. For instance, the clutch position "closed" is expressed in mm and %. A closed clutch gives a relative clutch stroke of 100% in a position between 37 and 60 mm. An opened clutch gives a relative clutch stroke of about 0% in a position between 18 and 40 mm. The clutch position sensor in the clutch actuator measures the distance from a fully closed to a fully opened clutch.

System inspection with DAVIE XD

Example:

Clutch position/stroke: fully closed (100%) = 37 mm fully opened (approx. 0%) = 18 mm Difference (clutch stroke) = approx. 19 mm

The position of clutch operation components changes during the service life of the clutch plate. For this reason the clutch stroke of approx. 19 mm will move along the "operating range" of the clutch actuator. This is visible by the changing clutch position (in mm) of the opened and closed clutch.

The "absolute change-over" is the point at which the clutch "engages"; depending on tolerances and wear this point is between 12 and 45 mm.

If the accelerator pedal is not operated, the "low idling switch" is active.

A number of situations are shown by way of example:

Neutral

In neutral the clutch is closed; therefore "engine speed in" and "input shaft speed" have to be virtually equal. With a closed clutch the "relative clutch stroke" is 100%; also, the "clutch status" indicates that the clutch is closed. If the accelerator pedal is not operated, the "low idling switch" is active.

200438 2-3

AS TRONIC

System inspection with DAVIE XD

Selecting D or R

If D or R is selected, the clutch will open, which is indicated by the "clutch status" and the "input shaft speed" which has become 0 rpm. With an opened clutch the "relative clutch stroke" is approx. 0%. If the accelerator pedal is not operated, the "low idling switch" is still active.

When driving away, the clutch will close and the engine and input shaft speeds will be virtually equal. At the same time the "low idling switch" status will change to not active.

Selecting Manoeuvering R or Manoeuvering D

Selection of Manoeuvering R or Manoeuvering D gives the same result as selection of D and R, until the accelerator pedal is depressed. The "low idling switch" status changes to not active and the "clutch status" indicates that the clutch slips. Also, the "relative clutch stroke" indicates that the clutch does not close completely; the stroke will be between 30 and 50%, depending on the resistance that has to be overcome.

DAVIE XD diagnostics manual

2-4

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4 VIC

CONTENTS

Page Date

1. VIC FAULT CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 . . . . . 200438

1.2 Explanatory notes to VIC fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 . . . . . 200438

2. VIC CUSTOMER PARAMETERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 . . . . . 200438

2.2 Explanatory notes to VIC customer parameters, restricted version. . . . . . 2-2 . . . . . 200438

2.3 Explanatory notes to VIC customer parameters, elaborate version . . . . . 2-6 . . . . . 200438

3. SYSTEM INSPECTION WITH DAVIE XD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 . . . . . 200438

3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 . . . . . 200438

Contents

200438 1

VIC

Contents

DAVIE XD diagnostics manual

200438

VIC

DAVIE XD diagnostics manual

1. VIC FAULT CODES

1.1 INTRODUCTION

If the electronic unit detects a system fault, this fault is usually stored in the memory of the electronic unit as a fault code. Most system faults will also generate a warning.

VIC fault codes

200438 1-1

VIC

VIC fault codes

DAVIE XD diagnostics manual

1.2 EXPLANATORY NOTES TO VIC FAULT CODES

Fault code Fault code description with possible cause Symptom

12401-3 Short circuit to supply on pin B21 of the ECU - Gearbox gate protection is active at low

speeds; it is impossible to shift gate 1-2 at low speeds

12401-20 Interruption or short circuit to earth on pin B21 of

the ECU

12501-3 Short circuit to supply on pin B19 of the ECU - Shifting down to the low range remains

12501-20 Interruption or short circuit to earth on pin B19 of

the ECU

12701-21 Interruption on pin C05 of the ECU - Rear fog lamps are not working

12702-3 Short circuit to supply on pin C50 of the ECU - Relay G237 is no longer energised, the

12702-20 Interruption or short circuit to earth on pin C50 of

the ECU

Short circuit to earth on pin C50 of the ECU - Windscreen wiper motor runs at low speed

12703-22 Interruption on pin A01 of the ECU - Windscreen wipers are not working

Short circuit to supply on pin A01 of the ECU - Windscreen wiper motor runs at low speed

12703-4 Short circuit to earth on pin A01 of the ECU - Windscreen wipers are not working

12704-22 Short circuit to supply on pin C48 of the ECU - Headlamp wiper motor is permanently

Interruption on pin C48 of the ECU - Headlamp wiper motor does not function

- Gearbox gate protection does not function; it is possible to shift gate 1-2 at higher speeds

possible, even at higher speeds

- It is not possible to shift down to the low range, even at low speeds

- Headlamp washers are not working

windscreen wipers are not working

- Windscreen wipers are not working

with steering column switch in 0-position

activated

when the switch is operated

12704-4 Short circuit to earth on pin C48 of the ECU - Headlamp wiper motor does not function

when the switch is operated

13401-24 Short circuit to earth or excessive load on pin E09

of the ECU

13401-5 Interruption or insufficient load on pin E09 of the

ECU

13402-24 Short circuit to earth or excessive load on pin E08

of the ECU

13402-5 Interruption or insufficient load on pin E08 of the

ECU

13403-24 Short circuit to earth or excessive load on pin E07

of the ECU

13403-5 Interruption or insufficient load on pin E07 of the

ECU

1-2

- Prime mover left flasher lights: not flashing at the front, flashing with too high a frequency at the rear

- Prime mover left flasher lights are not working

- Prime mover right flasher lights: not flashing at the front, flashing with too high a frequency at the rear

- Prime mover right flasher lights are not working

- Prime mover left flasher lights: not flashing at the rear, flashing with too high a frequency at the front

- Prime mover left flasher lights are not working

200438

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DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

13404-24 Short circuit to earth or excessive load on pin E04

of the ECU

13404-5 Interruption or insufficient load on pin E04 of the

ECU

13405-24 Short circuit to earth or excessive load on pin A07

of the ECU

13406-24 Short circuit to earth or excessive load on pin A08

of the ECU

21301-3 Short circuit to supply on pin D16 of the ECU - Air pressure gauge, circuit 1, gives no

21301-20 Interruption or short circuit to earth on pin D16 of

the ECU

21301-23 Voltage out of range; voltage between 0 and 1 V

on pin D16 of the ECU

21301-25 Voltage out of range; voltage between 4 and 5 V

on pin D16 of the ECU

21302-3 Short circuit to supply on pin D11 of the ECU - Air pressure gauge, circuit 1, gives no

21302-20 Interruption or short circuit to earth on pin D11 of

the ECU

- Prime mover right flasher lights: not flashing at the rear, flashing with too high a frequency at the front

- Prime mover right flasher lights are not working

- Drawn vehicle left flasher lights are not working

- Drawn vehicle right flasher lights are not working

reading

- Air pressure gauge, circuit 1, gives no reading

reading

- Air pressure gauge, circuit 2, gives no reading

VIC fault codes

21302-23 Voltage out of range; voltage between 0 and 1 V

on pin D11 of the ECU

21302-25 Voltage out of range; voltage between 4 and 5 V

on pin D11 of the ECU

21303-3 Short circuit to supply on pin D31 of the ECU - Air pressure gauges, circuits 1 and 2, give

21303-4 Short circuit to earth on pin D31 of the ECU - Flashing instrument lighting on DIP-4, no

21901-3 Short circuit to supply on pin B24 of the ECU - The traction control can be activated

22001-21 Interruption on pin C05 of the ECU or interruption

in the voltage supply

22002-3 Short circuit to supply on pin C40 of the ECU - Rear fog lights remain lit, irrespective of the

22002-20 Interruption or short circuit to earth on pin C40 of

the ECU

22601-21 Interruption on pin C08 of the ECU - No glow indication on DIP-4

22901-22 Interruption or short circuit to supply on pin D15 of

the ECU

22901-23 Voltage signal is outside of tolerance field - Information on the main display does not

23801-4 Short circuit to earth on pin D04 of the ECU - Instrument lighting can no longer be dimmed

- Air pressure gauge, circuit 2, gives no reading

no reading

possibility to read fault codes

independently of speed; normally the traction control can no longer be activated above 30 km/h

- Rear fog light relay is no longer automatically deactivated when the lighting is switched off

position of the switch

- Rear fog lights are not working

- Yellow warning "Coolant level low" is activated

correspond with the actual coolant level; a warning may be displayed

200438 1-3

VIC

VIC fault codes

Fault code Fault code description with possible cause Symptom

23801-5 Interruption or insufficient load on pin D04 of the

ECU

23802-21 Interruption on pin C07 of the ECU - Instrument lighting can no longer be dimmed

24202-19 No CAN message received from transmission

ECU due to:

- communication problem with transmission ECU

24204-19 No CAN message received from intarder ECU

due to:

- communication problem with intarder ECU

24401-2 Fault when reading the chassis number - Red warning "VIC configuration fault"

25601-16 Engine speed too high - Yellow warning "engine speed too high" is

26001-3 Short circuit to supply on pin B23 of the ECU

(manually operated gearbox)

26001-20 Interruption or short circuit to earth on pin B23 of

the ECU (manually operated gearbox)

26002-3 Short circuit to supply on pin C46 of the ECU

(manually operated gearbox)

- Instrument lighting can no longer be dimmed

- No noticeable system limitation in VIC

- PTO 1 is permanently activated

- PTO 1 is not activated upon operation of the

- PTO 2 is permanently activated

DAVIE XD diagnostics manual

active; the engine speed is higher than 2450 rpm for more than 1 second

switch; also, a yellow PTO 1 warning becomes active

26002-20 Interruption or short circuit to earth on pin C46 of

the ECU (manually operated gearbox)

26101-11 No signal on pin B01/B07 of the ECU of the

engine oil level sensor (F673)

26201-3 Short circuit to supply on pin B23 of the ECU

(AS Tronic)

26201-20 Interruption or short circuit to earth on pin B23 of

the ECU (AS Tronic)

26202-3 Short circuit to supply on pin C46 of the ECU

(AS Tronic)

26202-20 Interruption or short circuit to earth on pin C46 of

the ECU (AS Tronic)

27201-3 Short circuit to supply on pin C42 of the ECU - Engine cannot be started; relay G372/G303

- PTO 2 is not activated upon operation of the switch; also, a yellow PTO 2 warning becomes active

- Red warning "engine oil level too low" is activated

- PTO 1 is permanently activated

- PTO 1 is not activated upon operation of the switch; also, a yellow PTO 1 warning becomes active

- PTO 2 is permanently activated

- PTO 2 is not activated upon operation of the switch; also, a yellow PTO 2 warning becomes active

remains energised (depending on the production date, this connection is on pin C44 of the ECU with vehicles 2004-25)

- Lighting remains lit, relay G301 remains energised

- Cab heater cannot be switched on, relay D871/D901 remains energised

1-4

200438

VIC

DAVIE XD diagnostics manual

Fault code Fault code description with possible cause Symptom

27201-19 No CAN message received "engine speed" There is no power supply on output C42 so that

- there is no start protection when the engine is running; relay G303/G372 cannot be energised

- Swedish lighting is not working; relay G301 cannot be energised

- the cab heater is not switched off; relay D871/D901 is not energised

27201-20 Interruption or short circuit to earth on pin C42 of

the ECU

30801-2 Interruption of power supply on pin A02 of the

ECU

30802-2 Interruption of power supply on pin A09 of the

ECU

30803-2 Interruption of power supply on pin E03 of the

ECU

- There is no start protection when the engine is running; relay G303/G372 cannot be energised

- Swedish lighting is not working; relay G301 cannot be energised

- The cab heater is not switched off; relay D871/D901 is not energised

- Alarm light function is not working

- Direction indicator function is not working

VIC fault codes

33301-19 No CAN message received from CAN extension

box due to:

- communication problem with CAN extension box

- No noticeable system limitation in VIC

200438 1-5

VIC

VIC fault codes

DAVIE XD diagnostics manual

1-6

200438

VIC

DAVIE XD diagnostics manual

2. VIC CUSTOMER PARAMETERS

2.1 INTRODUCTION

Customer parameters

Note:

VIC customer parameters

Customer parameter names and codes

Standard values

200438 2-1

VIC

VIC customer parameters DAVIE XD diagnostics manual

must be engaged in the case of a manually operated

gearbox.

The setting "not active" means that the brake pedal

(brake signal) has no influence on the engaging of the

PTO.

The setting "active" means that the brake pedal (brake

signal) has influence on the engaging of the PTO.

The setting "depressed" only allows the PTO to be

engaged if the brake pedal is operated.

The setting "released" only allows the PTO to be

engaged if the brake pedal is not operated.

The setting "not active" means that the clutch pedal

(clutch signal) has no influence on the engaging of the

PTO.

The setting "active" means that the clutch pedal (clutch

signal) has influence on the engaging of the PTO.

The setting "depressed" only allows the PTO to be

engaged if the clutch is operated.

The setting "released" only allows the PTO to be

engaged if the clutch is not operated.

set:

Maximum

value to be

set:

Minimum

value to be

2.2 EXPLANATORY NOTES TO VIC CUSTOMER PARAMETERS, RESTRICTED VERSION

2-2

In the restricted version the parameter settings

need to be programmed individually; the below

Explanation Dependences: Notes

VIC Customer

table contains an explanation of the settings for

the manually operated gearbox and the

AS Tronic.

parameter code

Group 1 Engaging conditions for the PTO These settings allow you to determine when the PTO

(brake signal) has influence on the engaging of the PTO.

1-01 Setting used to determine whether the brake pedal

pedal (brake signal) on the engaging of the PTO. See

1-02 Setting used to determine the influence of the brake

also 1-01.

1-03 Setting used to determine whether the clutch pedal

(clutch signal) has influence on the engaging of the

PTO.

pedal (clutch signal) on the engaging of the PTO. See

also 1-03.

1-04 Setting used to determine the influence of the clutch

200438

VIC

DAVIE XD diagnostics manual

The setting "not active" means that the parking brake

(parking brake signal) has no influence on the engaging

of the PTO.

The setting "active" means that the parking brake

(parking brake signal) has influence on the engaging of

the PTO.

The setting "used" only allows the PTO to be engaged if

the parking brake is activated.

The setting "released" only allows the PTO to be

engaged if the parking brake is not activated.

The setting "not active" means that the running of the

engine has no influence on the engaging of the PTO.

VIC customer parameters

The setting "active" means that the running of the engine

has influence on the engaging of the PTO.

The setting "running" only allows the PTO to be engaged

if the engine is running.

The setting "non-running" only allows the PTO to be

engaged if the engine is not running.

All engaging conditions must have been met within this

set time; after this time the PTO engaged.

A warning is activated on DIP-4 if the engaging

conditions have not been met within the set time.

must be disengaged in the case of a manually

operated gearbox.

set:

Maximum

value to be

set:

Minimum

value to be

(parking brake signal) has influence on the engaging of

Explanation Dependences: Notes

VIC Customer

parameter code

200438 2-3

the PTO.

1-05 Setting used to determine whether the parking brake

1-06 Setting used to determine the influence of the parking

brake (parking brake signal) on the engaging of the

PTO. See also 1-05.

engine has influence on the engaging of the PTO.

1-07 Setting used to determine whether the running of the

engaged with a running or non-running engine. See also

1-07.

1-08 Setting used to determine whether the PTO may only be

1-09 Setting of the minimum engine speed at which the PTO

can be engaged. See also 1-08.

can be engaged.

1-10 Setting of the minimum vehicle speed at which the PTO

must have been met; after this time the PTO is engaged.

1-11 Setting of the time at which the engaging conditions

Group 2 PTO disengaging conditions These settings allow you to determine when the PTO

VIC

VIC customer parameters DAVIE XD diagnostics manual

The setting "not active" means that the brake pedal

(brake signal) has no influence on the disengaging of the

PTO.

The setting "active" means that the brake pedal (brake

signal) has influence on the disengaging of the PTO.

The setting "depressed" disengages the PTO if the

brake pedal is operated.

The setting "released" disengages the PTO if the brake

pedal is not operated.

The setting "not active" means that the clutch pedal

(clutch signal) has no influence on the disengaging of

the PTO.

The setting "active" means that the clutch pedal (clutch

signal) has influence on the disengaging of the PTO.

The setting "depressed" disengages the PTO if the

clutch is operated.

The setting "released" disengages the PTO if the clutch

is not operated.

The setting "not active" means that the parking brake

(parking brake signal) has no influence on the

disengaging of the PTO.

The setting "active" means that the parking brake

(parking brake signal) has influence on the disengaging

of the PTO.

The setting "used" disengages the PTO when the

parking brake is activated.

The setting "released" disengages the PTO when the

parking brake is not activated.

The setting "not active" means that the engine speed

has no influence on the disengaging of the PTO.

The setting "active" means that the engine speed has

influence on the disengaging of the PTO.

set:

Maximum

value to be

set:

Minimum

value to be

2-4

Explanation Dependences: Notes

VIC Customer

parameter code

1.12 Setting used to determine whether the brake pedal

(brake signal) has influence on the disengaging of the

PTO.

pedal (brake signal) on the disengaging of the PTO. See

also 1-12.

1.13 Setting used to determine the influence of the brake

1.14 Setting used to determine whether the clutch pedal

(clutch signal) has influence on the disengaging of the

PTO.

pedal (clutch signal) on the disengaging of the PTO. See

also 1-14.

1.15 Setting used to determine the influence of the clutch

1.16 Setting used to determine whether the parking brake

(parking brake signal) has influence on the disengaging

of the PTO.

1.17 Setting used to determine the influence of the parking

brake (parking brake signal) on the disengaging of the

PTO. See also 1-16.

influence on the disengaging of the PTO.

1.18 Setting used to determine whether the engine speed has

200438

VIC

DAVIE XD diagnostics manual

The setting "running" disengages the PTO when the

engine is running.

The setting "non-running" disengages the PTO when the

engine is not running.

The PTO must actually have been disengaged within

this time.

If the PTO has not been disengaged within the time set,

VIC customer parameters

a warning on DIP-4 is activated.

These settings apply to vehicles equipped with

AS Tronic.

The setting "stationary" means PTO use with a

stationary vehicle.

The setting "non-stationary" means PTO use with a

moving vehicle.

AS Tronic ECU.

Within this set time the VIC must receive feedback

indicating that the PTO is actually engaged; this

feedback is effected by means of the status switch in the

PTO.

Within this set time the VIC must receive feedback

indicating that the PTO is actually engaged; this

feedback is effected by means of the status switch in the

PTO.

set:

Maximum

value to be

set:

Minimum

value to be

disengaged when the engine is running or not. See also

Explanation Dependences: Notes

VIC Customer

parameter code

200438 2-5

1-18.

1.19 Setting which determines whether the PTO is

is disengaged. See also 1-19.

is disengaged.

1.20 Setting of the maximum engine speed at which the PTO

1.21 Setting of the maximum vehicle speed at which the PTO

1-22 Setting of the time at which the PTO must have been

disengaged.

Setting of the engaging conditions for the PTO

control function for PTO-1

stationary PTO use.

1-31 Setting which is used to select stationary or non-

1-32 Setting of the maximum engine speed at which the PTO

is disengaged.

1-33 AS Tronic PTO time Setting of the communication time between VIC and

1-34 Setting used to determine the time at which VIC expects

feedback from a PTO that is engaged.

feedback from a PTO that is disengaged.

1-35 Setting used to determine the time at which VIC expects

VIC

VIC customer parameters

2.3 EXPLANATORY NOTES TO VIC CUSTOMER PARAMETERS, ELABORATE VERSION

In the elaborate version it is possible to select a fixed parameter setting for a manually operated gearbox or an AS Tronic; see the overview. It is also possible to not use the default setting and to program the parameters individually; see the tables for a manually operated gearbox or an AS Tronic.

Default settings for a manually operated gearbox

An overview of the PTO type is shown on the main screen; a selection can be made between:

1. stationary use (non-moving vehicle)

2. non-stationary use (moving vehicle)

3. Engine PTO

When one of these settings is selected, default settings will be programmed. The below overview lists the default settings per PTO type:

DAVIE XD diagnostics manual

1. stationary use; the following default

engaging conditions apply to this setting:

- parking brake in parking position, and

- depressed clutch and

- engine is running, and

- engine speed is below 700 rpm, and

- vehicle speed is lower than 1 km/h, and

- PTO is engaged by means of switch (on dashboard and/or superstructure).

The following standard disengaging conditions apply to this setting:

- engine is not running, or

- vehicle speed is higher than 2 km/h, or

- PTO is disengaged by means of switch (on dashboard and/or superstructure).

2-6

200438

VIC

DAVIE XD diagnostics manual

2. non-stationary use; the following default engaging conditions apply to this setting:

- depressed clutch and

- engine is running, and

- engine speed is below 700 rpm, and

- vehicle speed is lower than 1 km/h, and

- PTO is engaged by means of switch (on

dashboard and/or superstructure). The following standard disengaging conditions apply to this setting:

- engine is not running, or

- PTO is disengaged by means of switch

(on dashboard and/or superstructure).

3. engine PTO; the following default engaging conditions apply to this setting:

- engine is not running, and

- PTO is engaged by means of switch (on

dashboard and/or superstructure). The following standard disengaging conditions apply to this setting:

- PTO is disengaged by means of switch

(on dashboard and/or superstructure).

If the above settings have been modified, the PTO type is followed by the text "modified".

VIC customer parameters

Upon selection of one of the three default settings a subsequent screen appears in which "advanced" can be selected.

200438 2-7

VIC

VIC customer parameters DAVIE XD diagnostics manual

These settings allow you to determine when the PTO

must be engaged in the case of a manually operated

gearbox.

The setting "not active" means that the brake pedal

(brake signal) has no influence on the engaging of the

PTO.

The setting "active" means that the brake pedal (brake

signal) has influence on the engaging of the PTO.

The setting "depressed" only allows the PTO to be

engaged if the brake pedal is operated.

The setting "released" only allows the PTO to be

engaged if the brake pedal is not operated.

The setting "not active" means that the clutch pedal

(clutch signal) has no influence on the engaging of the

PTO.

The setting "active" means that the clutch pedal (clutch

signal) has influence on the engaging of the PTO.

The setting "depressed" only allows the PTO to be

engaged if the clutch is operated.

The setting "released" only allows the PTO to be

engaged if the clutch is not operated.

The setting "not active" means that the parking brake

(parking brake signal) has no influence on the engaging

of the PTO.

The setting "active" means that the parking brake

(parking brake signal) has influence on the engaging of

the PTO.

set:

Maximum

value to be

set:

Minimum

value to be

In this overview you can modify the individual

2-8

parameters; the settings are explained in the

table below.

Explanation Dependences: Notes

VIC customer

parameter code

control function for PTO 1 and/or PTO 2

Group 1 Setting of the engaging conditions for the PTO

(brake signal) has influence on the engaging of the PTO.

1-01/1-45 Setting used to determine whether the brake pedal

pedal (brake signal) on the engaging of the PTO. See

1-02/1-46 Setting used to determine the influence of the brake

also 1-01.

(clutch signal) has influence on the engaging of the

1-03/1-47 Setting used to determine whether the clutch pedal

PTO.

pedal (clutch signal) on the engaging of the PTO. See

also 1-03.

1-04/1-48 Setting used to determine the influence of the clutch

1-05/1-49 Setting used to determine whether the parking brake

(parking brake signal) has influence on the engaging of

the PTO.

200438

VIC

DAVIE XD diagnostics manual

The setting "used" only allows the PTO to be engaged if

the parking brake is activated.

The setting "released" only allows the PTO to be

engaged if the parking brake is not activated.

The setting "not active" means that the running of the

engine has no influence on the engaging of the PTO.

The setting "active" means that the running of the engine

has influence on the engaging of the PTO.

VIC customer parameters

The setting "running" only allows the PTO to be engaged

if the engine is running.

The setting "non-running" only allows the PTO to be

engaged if the engine is not running.

These settings allow you to determine when the PTO

must be disengaged in the case of a manually

operated gearbox.

The setting "not active" means that the brake pedal

(brake signal) has no influence on the disengaging of the

PTO.

The setting "active" means that the brake pedal (brake

signal) has influence on the disengaging of the PTO.

The setting "depressed" disengages the PTO if the

brake pedal is operated.

The setting "released" disengages the PTO if the brake

pedal is not operated.

set:

Maximum

value to be

set:

Minimum

value to be

brake (parking brake signal) on the engaging of the

Explanation Dependences: Notes

VIC customer

parameter code

200438 2-9

PTO. See also 1-05.

1-06/1-50 Setting used to determine the influence of the parking

engine has influence on the engaging of the PTO.

1-07/1-51 Setting used to determine whether the running of the

engaged with a running or non-running engine. See also

1-07.

1-08/1-52 Setting used to determine whether the PTO may only be

can be engaged. See also 1-08.

can be engaged.

1-09/1-53 Setting of the maximum engine speed at which the PTO

1-10/1-54 Setting of the maximum vehicle speed at which the PTO

Group 2 Setting of the disengaging conditions for the PTO

control function for PTO 1 and/or PTO 2

1-12/1-55 Setting used to determine whether the brake pedal

(brake signal) has influence on the disengaging of the

PTO.

pedal (brake signal) on the disengaging of the PTO. See

also 1-12.

1-13/1-56 Setting used to determine the influence of the brake

VIC

VIC customer parameters DAVIE XD diagnostics manual

The setting "not active" means that the clutch pedal

(clutch signal) has no influence on the disengaging of

the PTO.

The setting "active" means that the clutch pedal (clutch

signal) has influence on the disengaging of the PTO.

The setting "depressed" disengages the PTO if the

clutch is operated.

The setting "released" disengages the PTO if the clutch

is not operated.

The setting "not active" means that the parking brake

(parking brake signal) has no influence on the

disengaging of the PTO.

The setting "active" means that the parking brake

(parking brake signal) has influence on the disengaging

of the PTO.

The setting "used" disengages the PTO when the

parking brake is activated.

The setting "released" disengages the PTO when the

parking brake is not activated.

The setting "not active" means that the engine speed

has no influence on the disengaging of the PTO.

The setting "active" means that the engine speed has

influence on the disengaging of the PTO.

The setting "running" disengages the PTO when the

engine is running.

The setting "non-running" disengages the PTO when the

engine is not running.

set:

Maximum

value to be

set:

Minimum

value to be

Explanation Dependences: Notes

VIC customer

2-10

parameter code

1-14/1-57 Setting used to determine whether the clutch pedal

(clutch signal) has influence on the disengaging of the

PTO.

pedal (clutch signal) on the disengaging of the PTO. See

also 1-14.

1-15/1-58 Setting used to determine the influence of the clutch

(parking brake signal) has influence on the disengaging

1-16/1-59 Setting used to determine whether the parking brake

of the PTO.

1-17/1-60 Setting used to determine the influence of the parking

brake (parking brake signal) on the disengaging of the

PTO. See also 1-16.

1-18/1-61 Setting used to determine whether the engine speed has

influence on the disengaging of the PTO.

1-19/1-62 Setting which determines whether the PTO is

disengaged when the engine is running or not. See also

1-18.

is disengaged. See also 1-19.

is disengaged.

1-20/1-63 Setting of the maximum engine speed at which the PTO

1-21/1-64 Setting of the maximum vehicle speed at which the PTO

200438

VIC

DAVIE XD diagnostics manual

must be engaged in the case of a manually operated

gearbox.

Within this set time the VIC must receive feedback

indicating that the PTO is actually engaged; this

feedback is effected by means of the status switch in the

PTO.

Within this set time the VIC must receive feedback

indicating that the PTO is actually engaged; this

VIC customer parameters

feedback is effected by means of the status switch in the

PTO.

set:

Maximum

value to be

set:

Minimum

value to be

Explanation Dependences: Notes

VIC customer

parameter code

200438 2-11

Group 3 Other PTO settings These settings allow you to determine when the PTO

feedback from a PTO that is engaged.

1-34/1-66 Setting used to determine the time at which VIC expects

feedback from a PTO that is disengaged.

1-35/1-67 Setting used to determine the time at which VIC expects

VIC

VIC customer parameters

Default settings for an AS Tronic gearbox

An overview of the PTO type is shown on the main screen; a selection can be made between:

1. stationary use (non-moving vehicle)

2. non-stationary use (moving vehicle)

When one of these settings is selected, default settings will be programmed. The below overview lists the default settings per PTO type:

1. stationary use; the following default engaging conditions apply to this setting:

- parking brake in parking position, and

- AS Tronic in neutral position (N) and

- engine is running, and

- engine speed is below 700 rpm, and

- vehicle speed is lower than 1 km/h, and

- PTO is engaged by means of switch (on

dashboard and/or superstructure). The following standard disengaging conditions apply to this setting:

- parking brake in driving position, or

- engine is not running, or

- vehicle speed is higher than 1 km/h, or

- PTO is disengaged by means of switch

(on dashboard and/or superstructure).

2. stationary use; the following default engaging conditions apply to this setting:

- parking brake in driving position, and

- AS Tronic in neutral position (N) and

- engine is running, and

- engine speed is below 700 rpm, and

- vehicle speed is lower than 1 km/h, and

- PTO is engaged by means of switch (on

dashboard and/or superstructure). The following standard disengaging conditions apply to this setting:

- engine is not running, or

- PTO is disengaged by means of switch

(on dashboard and/or superstructure).

DAVIE XD diagnostics manual

If the above settings have been modified, the PTO type is followed by the text "modified".

2-12

200438

DAF LF45, LF55, CF65, CF75, CF85 Fault Codes

Specifications and Main Features

Frequently Asked Questions

User Manual

1 EBS

1. EBS FAULT CODES

1.1 INTRODUCTION

1.2 EXPLANATORY NOTES TO EBS FAULT CODES

2. EBS CUSTOMER PARAMETERS

2.1 INTRODUCTION

2.2 EXPLANATORY NOTES TO EBS CUSTOMER PARAMETERS

3. SYSTEM INSPECTION WITH DAVIE XD

3.1 GENERAL

2 UPEC

1. UPEC FAULT CODES

1.1 INTRODUCTION

1.2 EXPLANATORY NOTES TO UPEC FAULT CODES

2. UPEC CUSTOMER PARAMETERS

2.1 INTRODUCTION

2.2 EXPLANATORY NOTES TO UPEC CUSTOMER PARAMETERS

3. SYSTEM INSPECTION WITH DAVIE XD

3.1 GENERAL

3.2 ENGINE BRAKE TEST

3.3 SPEED VARIATION CONTROL TEST

3 AS Tronic

1. AS TRONIC FAULT CODES

1.1 INTRODUCTION

1.2 EXPLANATORY NOTES TO AS TRONIC FAULT CODES

2. SYSTEM INSPECTION WITH DAVIE XD

2.1 GENERAL

2.2 'TRANSMISSION' MENU

2.3 'CLUTCH ACTUATOR' MENU

4 VIC

1. VIC FAULT CODES

1.1 INTRODUCTION

1.2 EXPLANATORY NOTES TO VIC FAULT CODES

2. VIC CUSTOMER PARAMETERS

2.1 INTRODUCTION

2.2 EXPLANATORY NOTES TO VIC CUSTOMER PARAMETERS, RESTRICTED VERSION

2.3 EXPLANATORY NOTES TO VIC CUSTOMER PARAMETERS, ELABORATE VERSION