DAF LF 45, LF55, CF65, CF75, CF85 Service Manual

DAVIE XD diagnostics manual

ΛΦ45

ΛΦ55

ΧΦ65

ΧΦ75

ΧΦ85

ΞΦ95

©200438 DAF Trucks N.V., Eindhoven,

The Netherlands.

In the interest of continuing product development, DAF reserves the right to change specifications or products at any time without prior notice.

No part of this publication may be reproduced and/or published by printing, by photocopying, on microfilm or in any way whatsoever without the prior consent in writing of DAF Trucks N.V.

© 200438

DW23262905

STRUCTURE

DAVIE XD diagnostics manual

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

ECAS-3

AGS

ZF INTARDER EST42

© 200438

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STRUCTURE

DAVIE XD diagnostics manual

ALS-S

ECS-DC3

IMMOBILISER

CDM

© 200438

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					EBS
	DAVIE XD diagnostics manual				Contents
	CONTENTS
				Page	Date
	1.	EBS FAULT CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		1-1 . . .	. . 200438
							1
		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

© 200438

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EBS

Contents DAVIE XD diagnostics manual

1

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© 200438

	EBS
DAVIE XD diagnostics manual	EBS fault codes
1. EBS FAULT CODES
1.1 INTRODUCTION
If the electronic unit detects a system fault, this			1
fault is usually stored in the memory of the
electronic unit as a fault code.
Most system faults will also generate a warning.

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1-1

EBS

EBS fault codes DAVIE XD diagnostics manual

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

1control" 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.

Fault code	Fault code description with possible cause		Symptom
11-18	Voltage on pin A8 of the EBS unit is too low due		-	ABS on front axle deactivated
	to:		-	ASR brake control deactivated
	-	contact resistance or poor connection to pin	-	EBS pressure control on front axle and
		A8 of the EBS unit		drawn vehicle deactivated
11-31	Extremely low voltage (<3 V) on pin A8 of the		-	ABS on front axle deactivated
	EBS unit due to:		-	ASR brake control deactivated
	-	excessive contact resistance on pin A8 of	-	EBS pressure control on front axle and
		the EBS unit		drawn vehicle deactivated
	-	interruption on pin A8 of the EBS unit
12-18	Voltage on pin A9 of the EBS unit is too low due		-	ABS on front and rear axles deactivated
	to:		-	ASR brake/engine control deactivated
	-	contact resistance or poor connection to pin	-	EBS pressure control on rear axle
		A9 of the EBS unit		deactivated
	-	short circuit to earth on pin B7 of the EBS
		unit
12-31	Extremely low voltage (<3 V) on pin A9 of the		-	ABS on front and rear axles deactivated
	EBS unit due to:		-	ASR brake/engine control deactivated
	-	excessive contact resistance on pin A9 of	-	EBS pressure control on rear axle
		the EBS unit		deactivated
	-	interruption on pin A9 of the EBS unit
	Short circuit to earth on pin E4 or B7 of the EBS		-	ABS on front and rear axles deactivated
	unit		-	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

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				EBS
DAVIE XD diagnostics manual				EBS fault codes
Fault code	Fault code description with possible cause		Symptom
13-18	Voltage on pin A7 of the EBS unit is too low due		-	No noticeable system limitation in EBS
	to:
	-	contact resistance or poor connection to pin
						1
		A7 of the EBS unit
14-32	Sensor supply voltage on pins D9, B13 or E1 of		-	No noticeable system limitation in EBS
	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		-	No noticeable system limitation in EBS
	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		-	No noticeable system limitation in EBS
	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
			-	ASR brake/engine control deactivated
			-	EBS pressure control on front axle, rear axle
				and drawn vehicle deactivated
16-12	Configuration parameters in the electronic unit		-	ABS on front and rear axles deactivated
	incorrect due to:		-	ASR brake/engine control deactivated
	-	incorrect programming	-	EBS pressure control on front axle, rear axle
	-	retrofitted components without identification		and drawn vehicle deactivated
		card (oxford) change
16-15	Internal failure in EBS electronic 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
16-17	Voltage (>32 V) on pins A7, A8 and A9 of the EBS		-	ABS on front and rear axles deactivated
	unit is too high due to:		-	ASR brake/engine control deactivated
	-	excessive alternator/battery voltage	-	EBS pressure control on front axle, rear axle
	-	inductive voltage of external component		and drawn vehicle deactivated
16-18	Voltage on pins A7, A8 and A9 of the EBS unit at		-	ABS on front and rear axles deactivated
	a speed of >2 km/h is too low due to:		-	ASR brake/engine control deactivated
	-	insufficient battery voltage	-	EBS pressure control on front axle, rear axle
	-	poor earth connection to EBS electronic unit		and drawn vehicle deactivated
16-53	Incorrect tyre size due to:		-	ABS on front and rear axles deactivated
	-	incorrectly programmed tyre size	-	ASR brake/engine control deactivated
	-	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,		-	ABS on front axle, right deactivated
	wheel speed sensor (F513)		-	ASR brake/engine control deactivated

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EBS

		EBS fault codes				DAVIE XD diagnostics manual
		Fault code	Fault code description with possible cause		Symptom
		21-38	Unacceptable wheel speed sensor frequency		-	ABS on front and rear axles deactivated
			signal from wheel speed sensor (F513) on pins		-	ASR brake/engine control deactivated
			C4 and C5 of the EBS unit due to:		-	EBS pressure control on front axle, rear axle
1
			-	loose pole ring		and drawn vehicle deactivated
			-	wrong assessment by EBS unit
		21-41	Short circuit to earth on pin C4 and/or C5 of the		-	ABS on front axle, right deactivated
			EBS unit, wheel speed sensor (F513)		-	ASR brake/engine control deactivated
		21-42	Short circuit to supply on pin C4 and/or C5 of the		-	ABS on front axle, right deactivated
			EBS unit, wheel speed sensor (F513)		-	ASR brake/engine control deactivated
		21-44	Short circuit on pin C4 and/or C5 of the EBS unit,		-	ABS on front axle, right deactivated
			wheel speed sensor (F513)		-	ASR brake/engine control deactivated
		21-45	Incorrect wheel speed sensor sine-wave signal		-	ABS on front axle, right deactivated
			from wheel speed sensor (F513) on pins C4 and		-	ASR brake/engine control deactivated
			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		-	ABS on front axle, right deactivated
			speed sensor signal from wheel speed sensor		-	ASR brake/engine control deactivated
			(F513) on pins C4 and C5 of the EBS unit due to:
			-	heavy point due to brake disc wobble, for
				example
		21-47	Excessive oscillation of wheel speed sensor		-	ABS on front axle, right deactivated
			signal (maximum/minimum level) from wheel		-	ASR brake/engine control deactivated
			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		-	ABS on front axle, right deactivated
			from wheel speed sensor (F513) on pins C4 and		-	ASR brake/engine control deactivated
			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,		-	ABS on front axle, left deactivated
			wheel speed sensor (F512)		-	ASR brake/engine control deactivated
		22-38	Unacceptable wheel speed sensor frequency		-	ABS on front and rear axles deactivated
			signal from wheel speed sensor (F512) on pins		-	ASR brake/engine control deactivated
			D7 and D8 of the EBS unit due to:		-	EBS pressure control on front axle, rear axle
			-	loose pole ring		and drawn vehicle deactivated
			-	wrong assessment by EBS unit
		22-41	Short circuit to earth on pin D7 and/or D8 of the		-	ABS on front axle, left deactivated
			EBS unit, wheel speed sensor (F512)		-	ASR brake/engine control deactivated
		22-42	Short circuit to supply on pin D7 and/or D8 of the		-	ABS on front axle, left deactivated
			EBS unit, wheel speed sensor (F512)		-	ASR brake/engine control deactivated
		22-44	Short circuit on pin D7 and/or D8 of the EBS unit,		-	ABS on front axle, left deactivated
			wheel speed sensor (F512)		-	ASR brake/engine control deactivated

1-4

© 200438

				EBS
DAVIE XD diagnostics manual				EBS fault codes
Fault code	Fault code description with possible cause		Symptom
22-45	Incorrect wheel speed sensor sine-wave signal		-	ABS on front axle, left deactivated
	from wheel speed sensor (F512) on pins D7 and		-	ASR brake/engine control deactivated
	D8 of the EBS unit due to:
						1
	-	distorted wheel speed sensor ring
	-	damaged wheel speed sensor ring
22-46	No uniformity (frequency changes) of wheel		-	ABS on front axle, left deactivated
	speed sensor signal from wheel speed sensor		-	ASR brake/engine control deactivated
	(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		-	ABS on front axle, left deactivated
	signal (maximum/minimum level) from wheel		-	ASR brake/engine control deactivated
	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		-	ABS on front axle, left deactivated
	from wheel speed sensor (F512) on pins D7 and		-	ASR brake/engine control deactivated
	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
23-37	Interruption on pin B1 and/or B2 of the rear axle		-	ABS on rear axle, right deactivated
	modulator (D879), wheel speed sensor (F515)		-	ASR brake/engine control deactivated
23-41	Short circuit to earth on pin B1 and/or B2 of the		-	ABS on rear axle, right deactivated
	rear axle modulator (D879), wheel speed sensor		-	ASR brake/engine control deactivated
	(F515)
23-42	Short circuit to supply on pin B1 and/or B2 of the		-	ABS on rear axle, right deactivated
	rear axle modulator (D879), wheel speed sensor		-	ASR brake/engine control deactivated
	(F515)
23-44	Short circuit between pins B1 and B2 of the rear		-	ABS on rear axle, right deactivated
	axle modulator (D879), wheel speed sensor		-	ASR brake/engine control deactivated
	(F515)
23-45	Incorrect wheel speed sensor sine-wave signal		-	ABS on rear axle, right deactivated
	from wheel speed sensor (F515) on pins B1 and		-	ASR brake/engine control deactivated
	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		-	ABS on rear axle, right deactivated
	speed sensor signal from wheel speed sensor		-	ASR brake/engine control deactivated
	(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

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EBS

		EBS fault codes				DAVIE XD diagnostics manual
		Fault code	Fault code description with possible cause		Symptom
		23-47	Excessive oscillation of wheel speed sensor		-	ABS on rear axle, right deactivated
			signal (maximum/minimum level) from wheel		-	ASR brake/engine control deactivated
			speed sensor (F515) on pins B1 and B2 of the
1
			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		-	ABS on rear axle, right deactivated
			from wheel speed sensor (F515) on pins B1 and		-	ASR brake/engine control deactivated
			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		-	ABS on rear axle, left deactivated
			C1 and C2 of the rear axle modulator (D879)		-	ASR brake/engine control deactivated
		24-41	Short circuit to earth in wheel speed sensor		-	ABS on rear axle, left deactivated
			(F514) on pins C1 and C2 of the rear axle		-	ASR brake/engine control deactivated
			modulator (D879)
		24-42	Short circuit to supply in wheel speed sensor		-	ABS on rear axle, left deactivated
			(F514) on pins C1 and C2 of the rear axle		-	ASR brake/engine control deactivated
			modulator (D879)
		24-44	Short circuit between pins C1 and C2 of the rear		-	ABS on rear axle, left deactivated
			axle modulator (D879), wheel speed sensor		-	ASR brake/engine control deactivated
			(F514)
		24-45	Incorrect wheel speed sensor sine-wave signal		-	ABS on rear axle, left deactivated
			from wheel speed sensor (F514) on pins C1 and		-	ASR brake/engine control deactivated
			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		-	ABS on rear axle, left deactivated
			speed sensor signal from wheel speed sensor		-	ASR brake/engine control deactivated
			(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		-	ABS on rear axle, left deactivated
			signal (maximum/minimum level) from wheel		-	ASR brake/engine control deactivated
			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
		24-48	Minimum value of wheel speed sensor signal		-	ABS on rear axle, left deactivated
			from wheel speed sensor (F514) on pins C1 and		-	ASR brake/engine control deactivated
			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

© 200438

				EBS
DAVIE XD diagnostics manual				EBS fault codes
Fault code	Fault code description with possible cause		Symptom
31-16	Large deviation between the duty cycle signals		-	ABS on front and rear axles deactivated
	from the foot brake valve (F628) on pins E2 and		-	ASR brake/engine control deactivated
	E5 of the EBS unit due to:		-	EBS pressure control on front axle, rear axle
						1
	-	internal fault in foot brake valve		and drawn vehicle deactivated
			-	Low voltage on connection point A9 inside
				EBS unit
31-52	Large deviation between the duty cycle signals		-	No noticeable system limitation in EBS
	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		-	No noticeable system limitation in EBS
	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		-	The actuating pressure control is active
	foot brake valve (F628) or short circuit to earth on			when the brake pedal is not applied; after a
	pin E3 of the EBS unit			specified time (approx. 1 min.) the actuating
				pressure control will automatically
				disengage.
33-37	No signal from brake pedal position switch 2 in		-	No noticeable system limitation in EBS
	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		-	The actuating pressure control is active
	foot brake valve (F628) or short circuit to earth on			when the brake pedal is not applied; after a
	pin E6 of the EBS unit			specified time (approx. 1 min.) the actuating
				pressure control will automatically
				disengage.
34-41	Lower signal level from brake pedal position		-	No noticeable system limitation in EBS
	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		-	No noticeable system limitation in EBS
	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

© 200438

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EBS

		EBS fault codes				DAVIE XD diagnostics manual
		Fault code	Fault code description with possible cause		Symptom
		35-41	Lower signal level from brake pedal position		-	No noticeable system limitation in EBS
			sensor 2 in foot brake valve (F628) on pin E5 of
			the EBS unit is too low during a specified period
1
			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		-	No noticeable system limitation in EBS
			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		-	ASR brake/engine control deactivated
			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		-	ASR brake/engine control deactivated
			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
		41-65	No CAN message "ERC1" received within a		-	No noticeable system limitation in EBS
			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		-	No noticeable system limitation in EBS
			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		-	No noticeable system limitation in EBS
			specified period of time from the gearbox
			(AS Tronic) if the drive line is activated
		41-68	No CAN message "CCVS" received within a		-	No noticeable system limitation in EBS
			specified period of time from the engine
			management system in relation to the parking
			brake status, vehicle speed and clutch status

1-8

© 200438

				EBS
DAVIE XD diagnostics manual				EBS fault codes
Fault code	Fault code description with possible cause		Symptom
41-69	No CAN message "TCO1" received within a		-	No noticeable system limitation in EBS
	specified period of time from the tachograph in
	relation to the vehicle speed due to:
						1
	-	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		-	No noticeable system limitation in EBS
	specified period of time
42-16	EBS unit does not receive correct CAN message		-	ABS on front and rear axles deactivated
	from the rear axle modulator (D879) on pins B1		-	ASR brake/engine control deactivated
	and B4 of the EBS unit		-	EBS pressure control on front axle, rear axle
				and drawn vehicle deactivated
42-61	Interrupted CAN communication with the rear		-	ABS on front and rear axles deactivated
	axle modulator (D879) via pins B1 and B4 of the		-	ASR brake/engine control deactivated
	EBS unit due to:		-	EBS pressure control on rear axle
	-	short circuit to earth on pin B4 of the EBS		deactivated
		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		-	No noticeable system limitation in EBS
	vehicle ECU via pins B3 and B6 of the EBS unit
43-63	Interrupted CAN communication, with a driving		-	No noticeable system limitation in EBS
	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		-	No noticeable system limitation in EBS
	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		-	No noticeable system limitation in EBS
	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
45-16	Interruption, short circuit to earth or short circuit to		-	No noticeable system limitation in EBS
	supply on pin A18 of the EBS unit
51-21	Short circuit to earth on pin D11 of the EBS unit,		-	ABS on front axle, left deactivated
	ABS valve (B256)
51-22	Short circuit to supply on pin D11 of the EBS unit,		-	ABS on front axle deactivated
	ABS valve (B256)

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EBS

		EBS fault codes				DAVIE XD diagnostics manual
		Fault code	Fault code description with possible cause			Symptom
		51-23	Interruption on pin D12 of the EBS unit, ABS			- ABS on front axle, left deactivated
			valve (B256)
1		51-24	Interruption on pin D11 of the EBS unit, ABS			- ABS on front axle, left deactivated
			valve (B256)
		51-25	Continuous actuation of ABS valve (B256) via			- ABS on front axle deactivated
			pins D10 and D12 and/or D11 and D12 of the			- EBS pressure control on front axle and
			EBS unit due to:			drawn vehicle deactivated
			- internal short circuit in EBS unit
		51-26	Interruption on pin D10 of the EBS unit, ABS			- ABS on front axle, left deactivated
			valve (B256)
		51-27	Short circuit to earth on pin D10 of the EBS unit,			- ABS on front axle, left deactivated
			ABS valve (B256)
		51-28	Short circuit to supply on pin D10 of the EBS unit,			- ABS on front axle deactivated
			ABS valve (B256)
		52-21	Short circuit to earth on pin C2 of the EBS unit,			- ABS on front axle, right deactivated
			ABS valve (B257)
		52-22	Short circuit to supply on pin C2 of the EBS unit,			- ABS on front axle deactivated
			ABS valve (B257)
		52-23	Interruption on pin C3 of the EBS unit, ABS valve			- ABS on front axle, right deactivated
			(B257)
		52-24	Interruption on pin C2 of the EBS unit, ABS valve			- ABS on front axle, right deactivated
			(B257)
		52-25	Continuous actuation of ABS valve (B527) via			- ABS on front axle deactivated
			pins C1 and C3 and/or C2 and C3 of the EBS unit			- EBS pressure control on front axle and
			due to:			drawn vehicle deactivated
			- internal short circuit in EBS unit
		52-26	Interruption on pin C1 of the EBS unit, ABS valve			- ABS on front axle, right deactivated
			(B257)
		52-27	Short circuit to earth on pin C1 of the EBS unit,			- ABS on front axle, right deactivated
			ABS valve (B257)
		52-28	Short circuit to supply on pin C1 of the EBS unit,			- ABS on front axle deactivated
			ABS valve (B256)
		53-32	Short circuit to earth on pin D12 or C3 of the EBS			- No noticeable system limitation in EBS
			unit, ABS valve (B256 or B257)
		53-33	Short circuit to supply on pin D12 or C3 of the			- ABS on front axle deactivated
			EBS unit, ABS valve (B256 or B257)
		55-12	Incorrect redundancy valve (B306) parameters			- ABS on front and rear axles deactivated
			due to:			- ASR brake/engine control deactivated
			- redundancy valve connected to the EBS unit			- EBS pressure control on front axle, rear axle
			without the EBS unit having been			and drawn vehicle deactivated
			programmed for a redundancy valve
		55-31	Interruption in redundancy valve (B306),			- ABS on front and rear axles deactivated
			measured via pin B12 of the EBS unit			- ASR brake/engine control deactivated
						- EBS pressure control on rear axle
						deactivated
		55-32	Short circuit to earth in redundancy valve (B306),			- ABS on front and rear axles deactivated
			measured via pin B12 of the EBS unit			- ASR brake/engine control deactivated
						- EBS pressure control on rear axle
						deactivated
	1-10					© 200438

				EBS
DAVIE XD diagnostics manual				EBS fault codes
Fault code	Fault code description with possible cause		Symptom
55-33	Short circuit to supply in redundancy valve		-	ABS on front axle deactivated
	(B306), measured via pin B12 of the EBS unit
57-12	Incorrect ASR cut-off valve (B309) parameters		-	ABS on front and rear axles deactivated		1
	due to:		-	ASR brake/engine control deactivated
	-	ASR cut-off valve connected to the EBS unit	-	EBS pressure control on front axle, rear axle
		without the EBS unit having been		and drawn vehicle deactivated
		programmed for an ASR cut-off valve
57-31	Interruption on pin C6 of the EBS unit, ASR cut-		-	ASR brake control deactivated
	off valve (B309)		-
57-32	Short circuit to earth on pin C6 of the EBS unit,		-	ASR brake control deactivated
	ASR cut-off valve (B309)		-
57-33	Short circuit to supply on pin C6 of the EBS unit,		-	No noticeable system limitation in EBS
	ASR cut-off valve (B309)
61-16	The current through the front axle modulator		-	EBS pressure control on front axle
	(B307) magnet coil measured via pins D1 and D2			deactivated
	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		-	EBS pressure control on front axle
	measured on pin D6 of the EBS unit is incorrect			deactivated
	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		-	Open circuit in EBS pressure control, front
	(B307) due to:			axle
	-	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		-	Open circuit in EBS pressure control, front
	front axle modulator (B307) pressure sensor			axle
	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
63-25	Permanent actuation of the front axle modulator		-	Brake remains applied to front axle
	(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,		-	EBS pressure control on front axle
	front axle modulator (B307)			deactivated

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1-11

EBS

		EBS fault codes						DAVIE XD diagnostics manual
		Fault code	Fault code description with possible cause				Symptom
		63-33	Short circuit to supply on pin D1 of the EBS unit,				-	EBS pressure control on front axle
			front axle modulator (B307)					deactivated
1		63-34	Short circuit to earth on pin D2 of the EBS unit,				-	EBS pressure control on front axle
			front axle modulator (B307)					deactivated
		63-35	Short circuit to supply on pin D2 of the EBS unit,				-	EBS pressure control on front axle
			front axle modulator (B307)					deactivated
		63-36	Interruption on pin D1 and/or D2 of the EBS unit,				-	EBS pressure control on front axle
			front axle modulator (B307)					deactivated
		64-13	The EBS unit parameters for the rear axle				-	ABS on front and rear axles deactivated
			modulator type do not correspond with the				-	ASR brake/engine control deactivated
			parameters in the rear axle modulator (D879)				-	EBS pressure control on front axle, rear axle
								and drawn vehicle deactivated
		64-16	Fault in the solenoid valves of the rear axle				-	ABS on front and rear axles deactivated
			modulator (D879)				-	ASR brake/engine control deactivated
							-	EBS pressure control on rear axle
								deactivated
		64-51	Output pressure of the rear axle modulator				-	ABS on rear axle deactivated
			(D879) is too high
		64-52	Brake pressure signal difference between both				-	ABS on front and rear axles deactivated
			pressure sensors in rear axle modulator (D879) is				-	ASR brake/engine control deactivated
			too high				-	EBS pressure control on rear axle
								deactivated
		64-54	No pressure sensor signal in rear axle modulator				-	ABS on front and rear axles deactivated
			(D879) or signal is incorrect (too high/too low)				-	ASR brake/engine control deactivated
							-	Open circuit in EBS pressure control, rear
								axle
		64-64	CAN communication problem of the EBS unit with				-	ABS on front and rear axles deactivated
			the rear axle modulator (D879) via pins B1 and				-	ASR brake/engine control deactivated
			B4 of the EBS unit				-	EBS pressure control on rear axle
								deactivated
			Supply voltage on pin B7 of the EBS unit				-	ABS on front and rear axles deactivated
			interrupted				-	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
			Interrupted earth connection or contact				-	ABS on front and rear axles deactivated
			resistance in the earth connection of the rear axle				-	ASR brake/engine control deactivated
			modulator (D879)				-	EBS pressure control on rear axle
								deactivated
		66-12	Incorrect drawn vehicle control valve (B308)				-	ABS on front and rear axles deactivated
			parameters due to:				-	ASR brake/engine control deactivated
			-	drawn vehicle control valve connected to the			-	EBS pressure control on front axle, rear axle
				EBS unit without the EBS unit having been				and drawn vehicle deactivated
				programmed for a drawn vehicle control
				valve
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				EBS
DAVIE XD diagnostics manual				EBS fault codes
Fault code	Fault code description with possible cause		Symptom
66-16	The current measured by the drawn vehicle		-	EBS pressure control on drawn vehicle
	control valve (B308) magnet coil via pins B10 and			deactivated
	B11 of the ECU is incorrect due to:
						1
	-	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		-	EBS pressure control on drawn vehicle
	pressure measured on pin B14 of the ECU is			deactivated
	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		-	Open circuit in EBS pressure control, drawn
	valve (B308) due to:			vehicle
	-	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,		-	Open circuit in EBS pressure control, drawn
	drawn vehicle control valve (B308) pressure			vehicle
	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		-	Open circuit in EBS pressure control, drawn
	and a speed >30 km/hour, drawn vehicle control			vehicle
	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		-	Brake remains applied to drawn vehicle
	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,		-	EBS pressure control on drawn vehicle
	drawn vehicle control valve (B308)			deactivated
68-33	Short circuit to supply on pin B10 of the EBS unit,		-	EBS pressure control on drawn vehicle
	drawn vehicle control valve (B308)			deactivated
68-34	Short circuit to earth on pin B11 of the EBS unit,		-	EBS pressure control on drawn vehicle
	drawn vehicle control valve (B308)			deactivated
68-35	Short circuit to supply on pin B11 of the EBS unit,		-	EBS pressure control on drawn vehicle
	drawn vehicle control valve (B308)			deactivated
68-36	Interruption on pin B10 and/or B11 of the EBS		-	EBS pressure control on drawn vehicle
	unit, drawn vehicle control valve (B308)			deactivated
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

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EBS

EBS fault codes DAVIE XD diagnostics manual

1

1-14

© 200438

	EBS
DAVIE XD diagnostics manual	EBS customer parameters
2. EBS CUSTOMER PARAMETERS
2.1 INTRODUCTION
Customer parameters			1
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.
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

2-2

200438 ©

					1
2.2 EXPLANATORY NOTES TO EBS CUSTOMER PARAMETERS
EBS Customer	Explanation	Dependences:		Notes
parameter code
		Minimum value to	Maximum value to
		be set:	be set:
3-01	This is a comfort parameter setting which	0 bar	3.5 bar	The presssure pulse activation ‚"P inshot" is only
	determines the pulsing "P-inshot" to the drawn			available on FT vehicles and is only active if a drawn
	vehicle.			vehicle without EBS system is coupled.
				This setting can be changed if:
				- there is a complaint relating to the towing of the
				drawn vehicle when braking is started.

customer EBS	EBS
parameters

manual diagnostics XD DAVIE

	EBS
DAVIE XD diagnostics manual	System inspection with DAVIE XD
3. SYSTEM INSPECTION WITH DAVIE XD
3.1 GENERAL
If the tyre size is changed or if the vehicle is			1
adjusted in such a way that the configuration is
changed, the electronic unit may have to be re-
programmed.

© 200438

3-1

EBS

System inspection with DAVIE XD DAVIE XD diagnostics manual

1

3-2

© 200438

					UPEC
	DAVIE XD diagnostics manual				Contents
	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
		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

© 200438

1

UPEC

Contents DAVIE XD diagnostics manual

2

2

© 200438