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VHD 2003

Volvo VN 2003, VHD 2003 Service Manual

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Page 1
Service Manual
Trucks
Group 38
Instrument Cluster Fault Codes
MID 140
VN,VHD VERSION2
PV776-TSP161704
Page 2
Page 3
Foreword
The products are under continuous development. Vehicles and components produced after the above date may therefore have different specifications and repair methods. When this is believed to have a significant bearing on this manual, supplementary ser­vice bulletins will be issued to cover the changes.
The new edition of this manual will update the changes. In service procedures where the title incorporates an operation number, this is a refer-
ence to an V.S.T. (Volvo Standard Times). Service procedures which do not include an operation number in the title are for gen-
eral information and no reference is made to an V.S.T. The following levels of observations, cautions and warnings are used in this Service
Documentation: Note: Indicates a procedure, practice, or condition that must be followed in order to
have the vehicle or component function in the manner intended.
Caution: Indicates an unsafe practice where damage to the product could occur. Warning: Indicates an unsafe practice where personal injury or severe damage to the
product could occur. Danger: Indicates an unsafe practice where serious personal injury or death could oc-
cur.
Volvo Trucks North America, Inc.
Greensboro, NC USA
Order number: PV776-TSP161704
© 2003 Volvo Trucks North America, Inc., Greensboro, NC USA
All rights reserved. No part of this publication may be reproduced, stored in retrieval system, or transmitted in any forms by any means, electronic, me­chanical, photocopying, recording or otherwise, without the prior written permission of Volvo Trucks North America, Inc..
USA10483
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Page 5
Contents
Specifications.........................................................................................3
InstrumentCluster,SignalDescriptions................................................3
Tools......................................................................................................13
SpecialTools.......................................................................................13
Otherspecialequipment.....................................................................14
Troubleshooting...................................................................................15
MID140FaultCodeTable..................................................................15
MID140PID77ForwardRearAxleTemperature..............................17
MID140PID77ForwardRearAxleTemperature,Check..................18
MID140PID78RearRearAxleTemperature...................................20
MID140PID78RearRearAxleTemperature,Check.......................21
MID140PID96FuelLevel.................................................................23
MID140PID96FuelLevel,Check....................................................24
MID140PID116ApplicationAirPressure.........................................26
MID140PID116ApplicationAirPressure,Check............................27
MID140PID117AirBrakePressure,Front.......................................29
MID140PID117AirBrakePressure,Front,Check..........................30
MID140PID118AirBrakePressure,Rear.......................................32
MID140PID118AirBrakePressure,Rear,Check...........................33
MID140PID158BatteryVoltage.......................................................35
MID140PID158BatteryVoltage,Check..........................................36
MID140PID171AmbientTemperature.............................................37
MID140PID171AmbientTemperature,Check.................................38
MID140PID177TransmissionOilTemperature................................40
MID140PID177TransmissionOilTemperature,Check...................41
MID140PID178AirSuspensionPressure,Front.............................43
MID140PID178AirSuspensionPressure,Front,Check.................44
MID140PID179AirSuspensionPressure,Rear.............................46
MID140PID179AirSuspensionPressure,Rear,Check.................47
MID140SID231J1939ControlLink.................................................49
MID140SID240ProgramMemory...................................................50
MID140SID250J1587/1708InformationLink..................................51
MID140SID253CalibrationMemory,EEPROM...............................53
MID140PSID7ReferenceResistance.............................................54
MID140PSID200J1939DataLinkInterruption,EngineECU.........55
MID140PSID201J1939DataLinkInterruption,VehicleECU.........56
MID140PSID204J1939DataLinkInterruption,Anti-lockBrake
ECU.....................................................................................................57
MID140PSID210J1939DataLinkInterruption,LightingControl
Module.................................................................................................58
MID140PSID232J1939-3ControlLink...........................................59
Feedback OperationNumbers
1
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2
Page 7
Group 38 Fault Codes, Instrument Cluster Specifications
Specifications
Instrument Cluster, Signal Descriptions
Connector A (22–pin Green) - with breakout box connected between the instrument cluster (MID140) and cable harness
Requirements:
Breakout box 9998699 connected to adapter
•
9998533 between the instrument cluster and cable harness. Use extension cable 9990062 if needed. Instrument cluster connected.
•
Ignition key in the drive position.
•
Engine switched off.
•
Measuring voltage using the multimeter.
•
Notes: V = direct current voltage (V) V
= battery voltage
bat
R = resistance in ohms (
)
Pin Signal type Measurement
points
A1 Power supply (BAT+) A1 - A2 V ≈ V A2 Ground A2 - ground V≈ 0V A3 Ignition supply, (DR or key ON) A3 - A2) V ≈ V A4 Stalk switch, SELECT A4 - A2 V ≈ 0V
A5 Stalk switch, ESCAPE A5 - A2 V ≈ 0V
A6 Stalk switch, ARROW UP A6 - A2 V ≈ 0V
A7 Stalk switch, ARROW DOWN A7 - A2 V ≈ 0V
A8 Not used A9 Not used
Nominal value Other
bat
bat
V ≈ V
bat
V ≈ V
bat
V ≈ V
bat
V ≈ V
bat
tive)
W3005144
(SELECT active)
(ESCAPE active)
(ARROW UP active)
(ARROW DOWN ac-
A10 SAE J1939-3 High A10-A2 V ≈ 0-5V A11 Not used A12 Ref Ground for sensor A12-A2 V ≈ 0V A13 Not used
3
Page 8
Group 38 Fault Codes, Instrument Cluster Specifications
Pin Signal type Measurement
Nominal value Other
points
A14 Not used A15 J1939 CAN High A15-A2 V ≈ 3-5V A16 J1939 CAN Low A16-A2 V ≈ 0-3V A17 J1587/1708+ A17-A2 V ≈ 0-5V A18 J1587/1708- A18-A2 V ≈ 0-5V A19 Not used A20 Not used A21 Audible hazard warning (signal
A21-A2 V ≈ 0V/V
from Lighting Control Module)
A22 J1939-3 Low A22-A2 V ≈ 0-5V
(Switching)
bat
4
Page 9
Group 38 Fault Codes, Instrument Cluster Specifications
Connector B (30–pin Green) - breakout box connected between the in­strument cluster (MID140) and cable harness
Requirements:
Breakout box 9998699 and adapter 9813194 con-
•
nected between the instrument cluster connector B and the cable harness. Use extension cable 9990062 if needed. Instrument cluster connected.
•
Ignition key in the drive position.
•
Engine switched off.
•
Measuring voltage using the multimeter.
•
Notes: V = direct current voltage (V) V
= battery voltage
bat
R = resistance in ohms (
)
Pin Signal type Measurement
points
B1 Reference Ground (redundant) B1 - ground V ≈ 0V B2 Application air pressure sensor,
analog input B3 Fuel level sensor, analog input B3 - B1 V ≈ 0-5V B4 Pyrometer sensor signal, negative
analog input B5 Pyrometer sensor signal, positive
analog input B6 Rear air suspension pressure
sensor, analog input B7 Front air suspension pressure
sensor, analog input B8 Not used B9 Outside temperature sensor, ana-
log input B10 Forward rear axle temperature
sensor, analog input
B2 - ground V ≈ 0.5 - 5.0 V
B4 - B5 V ≈ 5 - 32 mV
B5 - B4 V ≈ 5 - 32 mV
B6 - ground V ≈ 0.5 - 5.0 V
B7 - ground V ≈ 0.5 - 5.0 V
B9 - B1 V ≈ 0-5V
B10 - ground V ≈ 0-5V
Nominal value Other
W3005144
B11 Rear rear axle temperature sen-
sor, analog input B12 Transmission oil temperature sen-
sor, analog input B13 Front brake air pressure gauge
sensor, analog input B14 Rear brake air pressure gauge
sensor (analog input)
B11 - ground V ≈ 0-5V
B12-B1 V ≈ 0-5V
B13 - ground V ≈ 0.5 - 5.0 V
B14 - ground V ≈ 0.5 - 5.0 V
5
Page 10
Group 38 Fault Codes, Instrument Cluster Specifications
Pin Signal type Measurement
points
B15 Not used B16 Not used B17 5V supply output, rear air suspen-
B17 - ground V ≈ 5.0 V
sion pressure sensor
B18 5V supply output, application air
B18 - ground V ≈ 5.0 V
pressure sensor
B19 5V supply output, front axle air
B19 - ground V ≈ 5.0 V
pressure sensor
B20 5V supply output for front brake
B20 - ground V ≈ 5.0 V
air pressure sensor
B21 5V supply output, rear brake air
B21 - ground V ≈ 5.0 V
pressure sensor B22 Not used B23 Not used B24 Not used B25 Not used B26 Not used
Nominal value Other
B27 Not used B28 5th Wheel lock telltale sensor,
digital input B29 Not used B30 Not used
B28 - ground V ≈ V
bat
6
Page 11
Group 38 Fault Codes, Instrument Cluster Specifications
Connector C (30–pin Blue) - breakout box connected between the in­strument cluster (MID140) and cable harness
Requirements:
Breakout box 9998699 and adapter 9998533 con-
•
nected to connector A and C on the cable harness. Use extension cable 9990062 if needed. Instrument cluster connected.
•
Ignition key in the drive position.
•
Engine switched off.
•
Measuring voltage using the multimeter.
•
Notes: V = direct current voltage (V) V
= battery voltage
bat
R = resistance in ohms (
)
Pin Signal type Measurement
points
C1 Not used C2 ABS Trailer fault, digital input C2 - A2 V ≈ V
C3 ABS Vehicle fault, digital input C3 - A2 V ≈ V
C4 Traction control system, digital in-
put
C5 Air filter restriction, digital input C5-A2 V ≈ V
C6 Not used C7 Battery charging telltale, digital in-
put
C8 Air dump icon, digital input C8 - A2 V ≈ V
C4 - A2 V ≈ V
C7 - A2 V ≈ 2.2 V (Ignition key in the
Nominal value Other
V ≈ 0 V (Telltale light active)
V ≈ 0 V (Telltale light active)
V ≈ 0 V (Telltale light active)
V ≈ 0 V (Telltale light active)
off position) V ≈ V
position)
(Telltale light inactive)
bat
(Telltale light inactive)
bat
(Telltale light inactive)
bat
(Telltale light inactive)
bat
(Alternator charging)
bat
(Suspension in dump
bat
W3005144
C9 Not used C10 Interaxle Differential lock telltale,
digital input
C11 Interwheel Differential lock telltale,
digital input
C12 Not used
V ≈ 0 V (Suspension in ride position)
C10 - A2 V ≈ V
C11 - A2 V ≈ V
switch active)
(Switch active)
bat
(Differential lock
bat
7
Page 12
Group 38 Fault Codes, Instrument Cluster Specifications
Pin Signal type Measurement
points
C13 Not used C14 Not used C15 Not used C16 Transmission oil temp telltale digi-
C16 - A2 V ≈ 0 V (Active signal)
tal input C17 Transmission malfunction icon,
C17 - A2 V ≈ 0 V (Active signal)
digital input C18 Not used C19 Not used C20 Not used C21 Not used C22 Not used C23 Not used C24 Not used C25 Not used C26 Not used
Nominal value Other
V ≈ V
V ≈ V
(Inactive signal)
bat
(Inactive signal)
bat
C27 Not used C28 Not used C29 Washer fluid level icon, digital in-
put C30 Not used
C29 - A2 V ≈ 0V (Low level)
V ≈ V
(Fluid level OK)
bat
8
Page 13
Group 38 Fault Codes, Instrument Cluster Specifications
Connector A (22–pin Green) - breakout box connected to cable harness
Requirements:
Breakout box 9998699 connected to adapter
•
9998533 towards the cable harness. Use extension cable 9990062 if needed. Instrument cluster disconnected.
•
Ignition off.
•
Measuring resistance using the multimeter.
•
Notes: R = resistance in ohms (
Pin Signal type Measurement
A2 Ground A2 - ground R ≈ 0 A4 Stalk switch, SELECT A4 - ground R ≈ 0(Active)
A5 Stalk switch, ESCAPE A5 - ground R ≈ 0(Active)
A6 Stalk switch, ARROW UP A6 - ground R ≈ 0(Active)
A7 Stalk switch, ARROW DOWN A7 - ground R ≈ 0(Active)
)
Nominal value Other
points
R ≈∞
(Inactive)
R ≈∞
(Inactive)
R ≈∞
(Inactive)
R ≈∞
(Inactive)
W3005144
9
Page 14
Group 38 Fault Codes, Instrument Cluster Specifications
Connector B (30–pin Green) - breakout box connected to cable harness
Requirements:
Breakout box 9998699 and adapter 9813194 con-
•
nected to cable harness. Use extension cable 9990062 if needed. Instrument cluster disconnected.
•
Ignition off.
•
Measuring resistance using the multimeter.
•
Notes: R = resistance in ohms (
Pin Signal type Measurement
B1 Reference Ground (redundant) B1 - ground R ≈ 0 B3 Fuel level sensor, analog input B3 - B1 R ≈ 30 - 250 B9 Outside temperature sensor, ana-
log input B12 Transmission oil temperature sen-
sor, analog input
)
Nominal value Other
points
B9 - B1 See chart, page 11
B12-B1 See chart, page 11
W3005144
10
Page 15
Group 38 Fault Codes, Instrument Cluster Specifications
Outside Temperature Sensor, Temperature vs. Resistance
W3005183
Transmission Oil Temperature Sensor, Temperature vs. Resistance
W3005184
71C (160
Min 235
82C
(180
F)
165
93C
(200
F)
118
104C
F)
(220 85
F)
Nominal 255 Max
273
177 188
125 133
90 95
11
Page 16
Group 38 Fault Codes, Instrument Cluster Specifications
Connector C (30–pin Blue) - breakout box connected to cable harness
Requirements:
Breakout box 9998699 and adapter 9998533 con-
•
nected to connector A and C on the cable harness. Use extension cable 9990062 if needed. Instrument cluster disconnected.
•
Ignition off.
•
Measuring resistance using the multimeter.
•
Notes: R = resistance in ohms (
Pin Signal type Measurement
C3 ABS Vehicle telltale, digital input C3 - A2 R ≈ 93 k C4 Traction control system telltale,
digital input
C5 Air filter restriction, digital input C5 - A2 R ≈∞(Inactive)
C11 Interwheel differential lock telltale,
digital input
)
Nominal value Other
points
C4 - A2 R ≈∞(Inactive)
R ≈ 0
(Active)
R ≈ 0
(Active)
C11 - A2 R ≈∞(Diff inactive)
R ≈ 0
(Diff active)
W3005144
12
Page 17
Group 38 Fault Codes, Instrument Cluster Tools
Tools
Special Tools
For special tool and special equipment ordering instructions, see tool information in group 08.
9998533 Adapter between the instrument
cluster connectors A and C and breakout box 9998699
9990008 Set with test probes
T3009536
9813194 Adapter between the instrument
cluster connector B and breakout box 9998699
9998699 Breakout box 62-pin
85104407 Overlay for use with breakout box
9998699 and adapter 9813194
85104406 Overlay for use with breakout box
9998699 and adapter 9998533
13
Page 18
Group 38 Fault Codes, Instrument Cluster Tools
9990062 Cable Extension for use with
breakout box 9998699 and adapter 9998533
Other special equipment
For special tool and special equipment ordering instructions, see tool information in group 08.
J39200 Multimeter
14
Page 19
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Troubleshooting
MID 140 Fault Code Table
MID:
Message Identification Description (identification of con­trol unit).
SID:
Subsystem Identification Description (identification of component).
PID:
Parameter Identification Description (identification of pa­rameter (value)).
PPID:
Proprietary Parameter Identification Description (Volvo unique identification of parameter (value)).
Fault code Component / function FMI Reference
PID 77 Forward rear axle temperature 3, 4 “MID 140 PID 77 Forward Rear Axle
PID 78 Rear rear axle temperature 3, 4 “MID 140 PID 78 Rear Rear Axle Tem-
PID 96 Fuel level 3, 4 “MID 140 PID 96 Fuel Level” page 23 PID 116 Application air pressure 5, 6 “MID 140 PID 116 Application Air Pres-
PID 117 Air brake pressure, front 5, 6 “MID 140 PID 117 Air Brake Pressure,
PID 118 Air brake pressure, rear 5, 6 “MID 140 PID 118 Air Brake Pressure,
PID 158 Battery voltage 0 “MID 140 PID 158 Battery Voltage”
PSID:
Proprietary Subsystem Identification Description (Volvo unique component identification).
FMI:
Failure Mode Identifier (identification of fault type).
Temperature” page 17
perature” page 20
sure” page 26
Front” page 29
Rear” page 32
page 35
PID 171 Ambient temperature 3, 4 “MID 140 PID 171 Ambient Tempera-
ture” page 37
PID 177 Transmission oil temperature 3, 4 “MID 140 PID 177 Transmission Oil
Temperature” page 40
PID 178 Air suspension pressure, front 5, 6 “MID 140 PID 178 Air Suspension
Pressure, Front” page 43
PID 179 Air suspension pressure, rear 5, 6 “MID 140 PID 179 Air Suspension
Pressure, Rear” page 46
SID 231 SAE J1939 Data Link 2 “MID 140 SID 231 J1939 Control Link”
page 49
SID 240 Program memory 2 “MID 140 SID 240 Program Memory”
page 50
SID 250 SAE J1587/J1708 data link 3, 4, 9, 12 “MID 140 SID 250 J1587/1708 Infor-
mation Link” page 51
SID 253 Calibration memory, EEPROM 2 “MID 140 SID 253 Calibration Memory,
EEPROM” page 53
PSID 7 Internal reference resistance 3, 4 “MID 140 PSID 7 Reference Resis-
tance” page 54
PSID 200 Open-circuit, J1939 data link, engine 9 “MID 140 PSID 200 J1939 Data Link
Interruption, Engine ECU” page 55
15
Page 20
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Fault code Component / function FMI Reference
PSID 201 Open-circuit, J1939 data link, vehicle
control unit
PSID 204 Open-circuit, J1939 data link, anti-
lock brake control unit
PSID 210 Open-circuit J1939 data link, Lighting
control module
PSID 232 SAE J1939-3 data link 2 “MID 140 PSID 232 J1939-3 Control
9 “MID 140 PSID 201 J1939 Data Link
Interruption, Vehicle ECU” page 56
9 “MID 140 PSID 204 J1939 Data Link
Interruption, Anti-lock Brake ECU” page 57
9 “MID 140 PSID 210 J1939 Data Link
Interruption, Lighting Control Module” page 58
Link” page 59
FMI table
SAE standard
FMI Instrument Cluster Display text SAE text
0 Value too high Data applicable, but above normal operating range. 1 Value too low Data applicable, but below normal operating range. 2 Incorrect data Intermittent or incorrect data. 3 Electrical fault Abnormally high voltage or short-circuit to higher voltage. 4 Electrical fault Abnormally low voltage or short-circuit to lower voltage. 5 Electrical fault Abnormally low current or open-circuit. 6 Electrical fault Abnormally high current or short-circuit to ground. 7 Mechanical fault Incorrect response from the mechanical system. 8 Mechanical or electrical fault Abnormal frequency.
9 Communication fault Abnormal update rate. 10 Mechanical or electrical fault Abnormally high variations. 11 Unknown fault Unidentifiable fault. 12 Component fault Defective unit or component. 13 Incorrect calibration Calibration values outside the limits. 14 Unknown fault Special instructions. 15 Unknown fault Reserved for future use.
16
Page 21
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 77 Forward Rear Axle Temperature
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 77 Forward Rear Axle Temperature,
•
Check” page 18.
W3005582
A03 Instrument cluster B38RF Sensor, oil temp, forward rear axle
Fault code
FMI 3
Abnormally high voltage or short-circuit to higher voltage.
Conditions for fault code:
If the instrument cluster registers a voltage greater
•
than 4.5 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Signal cable short-circuited to higher voltage.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
FMI 4
Abnormally low voltage or short-circuit to lower voltage.
Conditions for fault code:
If the instrument cluster registers a voltage of less
•
than 0.5 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 77 Forward Rear Axle Temperature,
•
Check” page 18.
17
Page 22
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-10 MID 140 PID 77 Forward Rear Axle Temperature, Check
Special tools: 9998699, 9813194 Other special equipment: J39200, 9990008
NOTE!
Read off other fault codes for the instrument cluster.
•
Turn the ignition OFF before disconnecting the con-
•
nector. Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Ground cable
1 Requirements:
The connector for the sensor dis-
•
connected. Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster. (See page 17 for mea­surement points.)
Measuring points
B - ground R ≈ 0
Nominal value
J39200 9990008
Note: If the correct value is not achieved, disconnect the voltage from the battery.
Signal cable
2 Requirements:
The connector to the sensor is
•
disconnected. Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster. (See page 17 for mea­surement points.)
Measuring points
A - ground V
Nominal value
≈ 5V
max
V
≈ 0V
min
J39200 9990008
18
Page 23
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Cable harness
3
For checking the cable harness, see service information under function group 371.
Checking component
Note: Faults in the component may be caused by faults
in the cable harness to the control unit. Check the cable harness before connecting a new component.
Sensor
1 Requirements:
The connector for the sensor dis-
•
connected. Measuring resistance using a
•
multimeter. Ignition off.
•
Measurement to sensor. (See
•
page 17 for measurement points.)
Measuring points
A-B R ≈ 90@
Nominal value
(220
F)
R ≈ 255@
(160
F)
R ≈ 1k@ (77
F)
J39200
Checking sub-systems
Ground cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring resistance using a
•
multimeter. Ignition off.
•
Instrument cluster connected.
•
Measuring points
Pin B1- ground R ≈ 0
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Nominal value
9813194 9998699 J39200
9813194 9998699 J39200
Instrument cluster connected.
•
Measuring points
Pins B1 - B3 V
Nominal value
≈ 5V
max
V
≈ 0V
min
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 18).
19
Page 24
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 78 Rear Rear Axle Temperature
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 78 Rear Rear Axle Temperature,
•
Check” page 21.
W3005583
A03 Instrument cluster B38RR Sensor, oil temp, rear rear axle
Fault code
FMI 3
Abnormally high voltage or short-circuit to higher voltage.
Conditions for fault code:
If the instrument cluster registers a voltage greater
•
than 4.5 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Signal cable short-circuited to higher voltage.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
FMI 4
Abnormally low voltage or short-circuit to lower voltage.
Conditions for fault code:
If the instrument cluster registers a voltage of less
•
than 0.5 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 78 Rear Rear Axle Temperature,
•
Check” page 21.
20
Page 25
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-01 MID 140 PID 78 Rear Rear Axle Temperature, Check
Special tools: 9998699, 9813194 Other special equipment: J39200, 9990008
NOTE!
Read other fault codes for the instrument cluster.
•
Turn the ignition OFF before disconnecting the con-
•
nector. Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Ground cable
1 Requirements:
The connector for the sensor dis-
•
connected. Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster. (See page 20 for mea­surement points.)
Measuring points
B - ground R ≈ 0
Nominal value
J39200 9990008
Note: If the correct value is not achieved, disconnect the voltage from the battery.
Signal cable
2 Requirements:
The connector to the sensor is
•
disconnected. Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster. (See page 20 for mea­surement points.)
Measuring points
A - ground V
Nominal value
≈ 5V
max
V
≈ 0V
min
J39200 9990008
21
Page 26
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Cable harness
3
For checking the cable harness, see service information under function group 371.
Checking component
Note: Faults in the component may be caused by faults
in the cable harness to the control unit. Check the cable harness before connecting a new component.
Sensor
1 Requirements:
The connector for the sensor dis-
•
connected. Measuring resistance using a
•
multimeter. Ignition off.
•
Measurement to sensor. (See
•
page 20 for measurement points.)
Measuring points
A-B R ≈ 90@
Nominal value
(220
F)
R ≈ 255@
(160
F)
R ≈ 1k@ (77
F)
J39200
Checking sub-systems
Ground cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring resistance using a
•
multimeter. Ignition off.
•
Instrument cluster connected.
•
Measuring points
Pin B1- ground R ≈ 0
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Nominal value
9813194 9998699 J39200
9813194 9998699 J39200
22
Instrument cluster connected.
•
Measuring points
Pins B1 - B3 V
Nominal value
≈ 5V
max
V
≈ 0V
min
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 21).
Page 27
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 96 Fuel Level
Contact resistance and oxidation.
•
Reaction from the instrument cluster:
fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The fuel level gauge remains permanently at the
•
W3005748
MIN position. The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 96 Fuel Level, Check” page 24.
•
FMI 4
Abnormally low voltage or short-circuit to lower voltage.
W3005290
A03 Instrument cluster B07 Sensor, fuel level
Fault code
FMI 3
Abnormally high voltage or short-circuit to higher voltage.
Conditions for fault code:
If the instrument cluster registers a resistance
•
greater than 250 this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Signal cable short-circuited to higher unladen volt-
•
age. Faulty sensor.
•
the instrument cluster interprets
Conditions for fault code:
If the instrument cluster registers a resistance of
•
less than 20 as a fault and a fault code is stored.
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The fuel gauge remains in the MAX position.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 96 Fuel Level, Check” page 24.
•
the instrument cluster interprets this
23
Page 28
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-02 MID 140 PID 96 Fuel Level, Check
Special tools: 9998699, 9813194 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Turn the ignition OFF before disconnecting the con-
•
nector. Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Signal cable
2 Requirements:
The connector to the fuel level
•
sensor (B07) is disconnected. Adapter connected to the instru-
•
ment cluster. Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster.
Measuring points
B07, pin B ­ground
Nominal value
V
≈ 5V
max
V
≈ 0V
min
Cable harness
J39200
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Ground cable
1 Requirements:
The connector for the fuel level
•
sensor (B07) disconnected. Adapter connected to the instru-
•
ment cluster. Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster.
Measuring points
Nominal value
J39200
3
For checking the cable harness, see service information under function group 371.
B07, pin C ­ground
Note: If the correct value is not achieved, cut the voltage from the bat­tery.
24
R ≈ 0
Page 29
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking component
Note: Faults in the component may be caused by faults
in the cable harness to the control unit. Check the cable harness before connecting a new component.
Sensor, fuel level
1 Requirements:
The connector for the fuel level
•
sensor (B07) disconnected. Adapter connected to sensor for
•
fuel level. Measuring resistance using a
•
multimeter. Ignition off.
•
Measurement to sensor for fuel
•
level.
Measuring points
B07, pins B - C
Nominal value
R ≈ 30- 35 (100%)
J39200
Checking sub-systems
Ground cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring resistance using a
•
multimeter. Ignition off.
•
Instrument cluster connected.
•
Measuring points
Pin B1- ground R ≈ 0
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
9813194 9998699 J39200
R ≈ 45 - 65 (75%)
R ≈ 85 - 115 (50%)
R ≈ 145 - 170 (25%)
R ≈ 230 - 250 (0%)
Note: The amount of fuel is measured as a percentage of the possible vol­ume of fuel.
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B1 - B3 V
Nominal value
≈ 5V
max
V
≈ 0V
min
9813194 9998699 J39200
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 24).
25
Page 30
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 116 Application Air Pressure
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 116 Application Air Pressure, Check”
•
page 27.
FMI 6
Abnormally high current or short-circuit to ground.
W3005584
A03 Instrument cluster B06AP Sensor, application air
Conditions for fault code:
If the instrument cluster registers a voltage more
•
than 4.7 V the instrument cluster interprets this as a fault and a fault code is stored.
Fault code
FMI 5
Abnormally low current or open-circuit.
Conditions for fault code:
If the instrument cluster registers a voltage value
•
less than 0.3 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
Reaction from the instrument cluster:
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 116 Application Air Pressure, Check”
•
page 27.
26
Page 31
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-13 MID 140 PID 116 Application Air Pressure, Check
Special tools: 9998699, 9813194 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Turn the ignition OFF before disconnecting the con-
•
nector. Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Supply cable
2 Requirements:
The connector to the sensor
•
(B06AP) is disconnected. Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster.
Measuring points
B06AP, pin B ­ground
Nominal value
V ≈ 5V
Cable harness
3
For checking the cable harness, see service information under function group 371.
J39200
Ground cable
1 Requirements:
The connector for the application
•
air pressure sensor (B06AP) dis­connected.
Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster.
Measuring points
B06AP, pin A ­ground
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
R ≈ 0
J39200
27
Page 32
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking sub-systems
Supply cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using a multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pin B18 - B1 V ≈ 5V
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
9813194 9998699 J39200
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B2 - B1 V ≈ 0.5 V- 5 V
Nominal value
9813194 9998699 J39200
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 27).
28
Page 33
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 117 Air Brake Pressure, Front
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 117 Air Brake Pressure, Front,
•
Check” page 30.
FMI 6
Abnormally high current or short-circuit to ground.
W3005585
A03 Instrument cluster B06A Sensor, front brake air pressure
Conditions for fault code:
If the instrument cluster registers a voltage more
•
than 4.7 V the instrument cluster interprets this as a fault and a fault code is stored.
Fault code
FMI 5
Abnormally low current or open-circuit.
Conditions for fault code:
If the instrument cluster registers a voltage value
•
less than 0.3 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
Reaction from the instrument cluster:
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 117 Air Brake Pressure, Front,
•
Check” page 30.
29
Page 34
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-14 MID 140 PID 117 Air Brake Pressure, Front, Check
Special tools: 9998699, 9813194 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Ignition off.
•
Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Supply cable
2 Requirements:
The connector to the front brake
•
pressure sensor (B06A) is discon­nected.
Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster.
Measuring points
B06A, pin B ­ground
Nominal value
V ≈ 5V
Cable harness
3
For checking the cable harness, see service information under function group 371.
J39200
Ground cable
1 Requirements:
The connector for the front brake
•
air pressure sensor (B06A) dis­connected.
Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster.
Measuring points
B06A, pin A ­ground
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
30
Nominal value
R ≈ 0
J39200
Page 35
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking sub-systems
Supply cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using a multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pin B20 - B1 V ≈ 5V
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
9813194 9998699 J39200
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B13 - B1 V ≈ 0.5 V- 5 V
Nominal value
9813194 9998699 J39200
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 30).
31
Page 36
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 118 Air Brake Pressure, Rear
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 118 Air Brake Pressure, Rear,
•
Check” page 33.
FMI 6
Abnormally high current or short-circuit to ground.
W3005586
A03 Instrument cluster B06B Sensor, rear brake air pressure
Conditions for fault code:
If the instrument cluster registers a voltage more
•
than 4.7 V the instrument cluster interprets this as a fault and a fault code is stored.
Fault code
FMI 5
Abnormally low current or open-circuit.
Conditions for fault code:
If the instrument cluster registers a voltage value
•
less than 0.3 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
Reaction from the instrument cluster:
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 118 Air Brake Pressure, Rear,
•
Check” page 33.
32
Page 37
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-15 MID 140 PID 118 Air Brake Pressure, Rear, Check
Special tools: 9998699, 9813194 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Turn the ignition OFF before disconnecting the con-
•
nector. Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Supply cable
2 Requirements:
The connector to the rear brake
•
pressure sensor (B06B) is discon­nected.
Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster.
Measuring points
B06B, pin B ­ground
Nominal value
V ≈ 5V
Cable harness
3
For checking the cable harness, see service information under function group 371.
J39200
Ground cable
1 Requirements:
The connector for the rear brake
•
pressure sensor (B06B) discon­nected.
Adapter connected to the instru-
•
ment cluster. Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster.
Measuring points
B06B, pin A ­ground
Note: If the correct value is not achieved, remove the voltage from the battery and remeasure the circuit.
Nominal value
R ≈ 0
J39200
33
Page 38
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking sub-systems
Supply cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using a multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pin B21 - B1 V ≈ 5V
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
9813194 9998699 J39200
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B14 - B1 V ≈ 0.5 - 5.0 V
Nominal value
9813194 9998699 J39200
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 33).
34
Page 39
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 158 Battery Voltage
Fault code
FMI 0
Data applicable, but above normal operating range.
Conditions for fault code:
The battery voltage exceeds 15 V for one minute.
•
Possible cause:
T3009517
Fault in alternator.
•
Fast charger connected.
•
Reaction from the instrument cluster:
Fault code is stored.
•
A03 Instrument cluster
W3005291
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow light and symbol lights up.
•
Appropriate check:
“MID 140 PID 158 Battery Voltage, Check” page 36.
•
35
Page 40
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-08 MID 140 PID 158 Battery Volt­age, Check
Special tools: 9998699, 9998533 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Ignition off.
•
Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Ground cable
1 Requirements:
Connector A disconnected from
•
the rear of the cluster and con­nected to adapter and breakout box.
Measuring resistance using a
•
multimeter.
9998699 9998533 J39200
Supply cable
2 Requirements:
Connector A disconnected from
•
the rear of the cluster and con­nected to adapter and breakout box.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Measuring points
Pins A1 - A2 V ≈ V
Nominal value
bat
Checking sub-systems
Power supply instrument cluster
1 Requirements:
Check if any other control units
•
have stored fault codes for the power supply.
Perform a charging test on the ve-
•
hicle to check if the alternator is overcharging. A defective alterna­tor will cause damage to the vehicle’s electrical system and should be replaced as soon as possible.
9998699 9998533 J39200
J39200
Ignition off.
•
Measuring points
Pins A2 - ground R ≈ 0
36
Nominal value
Page 41
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 171 Ambient Temperature
Fault code
FMI 3
Abnormally high voltage or short-circuit to higher voltage.
Conditions for fault code:
If the instrument cluster registers a resistance
•
greater than 19.5 K prets this as a fault and a fault code is stored.
the instrument cluster inter-
T3006581
T3015670
A03 Instrument cluster B22 Sensor, ambient temperature
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
Extreme cold (Colder than -40C [-40F]).
•
Reaction from the instrument cluster:
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 171 Ambient Temperature, Check”
•
page 38.
FMI 4
Abnormally low voltage or short-circuit to lower voltage.
Conditions for fault code:
If the instrument cluster registers a resistance of
•
less than 47 as a fault and a fault code is stored.
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Extreme heat (Hotter than 90C [194F]).
•
Reaction from the instrument cluster:
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 171 Ambient Temperature, Check”
•
page 38.
the instrument cluster interprets this
37
Page 42
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-04 MID 140 PID 171 Ambient Tem­perature, Check
Special tools: 9998699, 9990008, 9813194 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Turn the ignition OFF before disconnecting the con-
•
nector. Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Ground cable
1 Requirements:
The connector for the ambient
•
temperature sensor disconnected.
9990008 J39200
Signal cable
2 Requirements:
The connector for the ambient
•
temperature sensor disconnected. Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster. (See page 37 for mea­surement points.)
Measuring points
1 - ground V
Nominal value
≈ 5V
max
V
≈ 0V
min
Cable harness
3
For checking the cable harness, see service information under function group 371.
9990008 J39200
Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster. (See page 37 for mea­surement points.)
Measuring points
2 - ground R ≈ 0
Note: If the correct value is not achieved, cut the voltage from the bat­tery.
Nominal values
38
Page 43
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking component
Note: Faults in the component may be caused by faults
in the cable harness to the instrument cluster. Check the cable harness before connecting a new component.
Ambient temperature sensor
1 Requirements:
The connector for the ambient
•
temperature sensor disconnected. Measuring resistance using a
•
multimeter. Ignition off.
•
Measurement at ambient temper-
•
ature sensor. (See page 37 for measurement points.)
Measuring points
1-2
Nominal value
R ≈ 2.9 - 4.4 k (-20C [-4F])
R ≈ 1.8 - 2.7 k (-10C [14F])
9990008 J32900
Checking sub-systems
Ground lead
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring resistance using a
•
multimeter. Ignition off.
•
Instrument cluster connected.
•
Measuring points
Pin B1 - ground R ≈ 0
Note: If the correct value is not achieved, remove the voltage from the batteries and measure again.
Signal cable
Nominal value
9813194 9998699 J39200
R ≈ 1.3 - 2.0 k (-4C [25F])
R ≈ 1.1 - 1.7 k (0C [32F])
R ≈ 0.9 - 1.4 k (+4C [39F])
R ≈ 0.7 - 1.1 k (+10C [50F])
R ≈ 0.5 - 0.7 k (+20C [68F])
R ≈ 0.4 - 0.6 k (+25C [77F])
R ≈ 200 - 400 (+40C [104F])
R ≈ 100 - 200 (+60C [140F])
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B1 - B9 V
Nominal value
≈ 5V
max
V
≈ 0V
min
9998699 9813194 J39200
39
Page 44
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 177 Transmission Oil Temperature
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 177 Transmission Oil Temperature,
•
Check” page 41.
W3005588
A03 Instrument cluster B09 Sensor, transmission oil tempera-
ture
Fault code
FMI 3
Abnormally high voltage or short-circuit to higher voltage.
Conditions for fault code:
If the instrument cluster registers a voltage greater
•
than 4.5 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Signal cable short-circuited to higher voltage.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
FMI 4
Abnormally low voltage or short-circuit to lower voltage.
Conditions for fault code:
If the instrument cluster registers a voltage of less
•
than 0.5 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 177 Transmission Oil Temperature,
•
Check” page 41.
40
Page 45
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-05 MID 140 PID 177 Transmission Oil Temperature, Check
Special tools: 9998699, 9813194 Other special equipment: J39200, 9990008
NOTE!
Read other fault codes for the instrument cluster.
•
Turn the ignition OFF before disconnecting the con-
•
nector. Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Ground cable
Signal cable
2 Requirements:
The connector to the sensor is
•
disconnected. Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster. (See page 40 for mea­surement points.)
Measuring points
A - ground V
Nominal value
≈ 5V
max
V
≈ 0V
min
J39200 9990008
Cable harness
3
For checking the cable harness, see service information under function group 371.
Checking component
Note: Faults in the component may be caused by faults
in the cable harness to the control unit. Check the cable harness before connecting a new component.
1 Requirements:
The connector for the sensor dis-
•
connected. Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster. (See page 40 for mea­surement points.)
Measuring points
B - ground R ≈ 0
Note: If the correct value is not achieved, disconnect the voltage from the battery.
Nominal value
J39200 9990008
Sensor
1 Requirements:
The connector for the sensor dis-
•
connected. Measuring resistance using a
•
multimeter. Ignition off.
•
Measurement to sensor.
•
Measuring points
Pins B12 - B1 See chart, page
Nominal value
11, for sensor values.
J39200
41
Page 46
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking sub-systems
Ground cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring resistance using a
•
multimeter. Ignition off.
•
Instrument cluster connected.
•
Measuring points
Pin B1- ground R ≈ 0
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
9813194 9998699 J39200
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster connector B and cable harness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B12 - B1 V
Nominal value
≈ 5V
max
V
≈ 0V
min
9813194 9998699 J39200
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 41).
42
Page 47
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 178 Air Suspension Pressure, Front
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 178 Air Suspension Pressure, Front,
•
Check” page 44.
FMI 6
Abnormally high current or short-circuit to ground.
W3005589
A03 Instrument cluster B56 Sensor, front air suspension pres-
sure
Conditions for fault code:
If the instrument cluster registers a voltage more
•
than 4.7 V the instrument cluster interprets this as a fault and a fault code is stored.
Fault code
FMI 5
Abnormally low current or open-circuit.
Conditions for fault code:
If the instrument cluster registers a voltage value
•
less than 0.3 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
Reaction from the instrument cluster:
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 178 Air Suspension Pressure, Front,
•
Check” page 44.
43
Page 48
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-16 MID 140 PID 178 Air Suspen­sion Pressure, Front, Check
Special tools: 9998699, 9813194 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Ignition off.
•
Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Supply cable
2 Requirements:
The connector to the sensor (B56)
•
is disconnected. Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster.
Measuring points
B56, pin B ­ground
Nominal value
V ≈ 5V
Cable harness
3
For checking the cable harness, see service information under function group 371.
J39200
Ground cable
1 Requirements:
The connector for the air suspen-
•
sion pressure sensor (B56) disconnected.
Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster.
Measuring points
B56, pin A ­ground
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
44
Nominal value
R ≈ 0
J39200
Page 49
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking sub-systems
Supply cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using a multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pin B19 - B1 V ≈ 5.0 V
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
9813194 9998699 J39200
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B7 - B1 V
Nominal value
≈ 5V
max
V
≈ 0V
min
9813194 9998699 J39200
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 44).
45
Page 50
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PID 179 Air Suspension Pressure, Rear
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 179 Air Suspension Pressure, Rear,
•
Check” page 47.
FMI 6
Abnormally high current or short-circuit to ground.
W3005590
A03 Instrument cluster B58R Sensor, rear air suspension pres-
sure
Conditions for fault code:
If the instrument cluster registers a voltage more
•
than 4.7 V the instrument cluster interprets this as a fault and a fault code is stored.
Fault code
FMI 5
Abnormally low current or open-circuit.
Conditions for fault code:
If the instrument cluster registers a voltage value
•
less than 0.3 V the instrument cluster interprets this as a fault and a fault code is stored.
Possible cause:
Open-circuit in the ground lead.
•
Open-circuit in the signal cable.
•
Faulty sensor.
•
Contact resistance and oxidation.
•
Reaction from the instrument cluster:
Possible cause:
Signal cable short-circuited to ground.
•
Faulty sensor.
•
Reaction from the instrument cluster:
Fault code is stored.
•
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows an icon and the text ”NO DATA”.
•
Appropriate check:
“MID 140 PID 179 Air Suspension Pressure, Rear,
•
Check” page 47.
46
Page 51
Group 38 Fault Codes, Instrument Cluster Troubleshooting
3811-21-02-17 MID 140 PID 179 Air Suspen­sion Pressure, Rear, Check
Special tools: 9998699, 9813194 Other special equipment: J39200
NOTE!
Read off other fault codes for the instrument cluster.
•
Ignition off.
•
Check all the relevant connectors. Check for loose
•
connections, contact resistance and oxidation. For a detailed description of electrical fault tracing, see separate service information under function group
371.
Tests in VCADS Pro
The following tests are useful for a closer examination of the component function:
”3810–08–02–01 Instrument cluster test”.
•
”3810–08–02–02 Gauge checks, instrument cluster”.
•
Measurement at the component’s connector to the instrument cluster
Note: Faults in the instrument cluster cable harness can
damage the component. Check the component if any of the readings is outside its permitted range.
Supply cable
2 Requirements:
The connector for the rear air sus-
•
pension pressure sensor (B58R) disconnected.
Measuring voltage using the multi-
•
meter. Instrument cluster connected.
•
Ignition key in the drive position.
•
Measurement to the instrument
•
cluster.
Measuring points
B58R, pin B ­ground
Nominal value
V ≈ 5V
Cable harness
3
For checking the cable harness, see service information under function group 371.
J39200
Ground cable
1 Requirements:
The connector for the rear air sus-
•
pension pressure sensor (B58R) disconnected.
Measuring resistance using a
•
multimeter. Instrument cluster connected.
•
Ignition off.
•
Measurement to the instrument
•
cluster.
Measuring points
B58R, pin A ­ground
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
R ≈ 0
J39200
47
Page 52
Group 38 Fault Codes, Instrument Cluster Troubleshooting
Checking sub-systems
Supply cable
1 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using a multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pin B17- B1 V ≈ 5V
Note: If the correct value is not achieved, remove the voltage from the battery and measure again.
Nominal value
9813194 9998699 J39200
Signal cable
2 Requirements:
Breakout box with adapter con-
•
nected between instrument cluster (A03) connector B and cable har­ness.
Measuring voltage using the multi-
•
meter. Ignition key in the drive position.
•
Instrument cluster connected.
•
Measuring points
Pins B6 - B1 V ≈ 0.5 - 5 V
Nominal value
9813194 9998699 J39200
Verification
Check that the fault has been repaired using the tests in VCADS Pro (See “Tests in VCADS Pro” page 47).
48
Page 53
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 SID 231 J1939 Control Link
Fault code
FMI 2
Intermittent or incorrect data.
Conditions for fault code:
If the instrument cluster cannot communicate via the
•
J1939 Control data link the instrument cluster inter­prets this as a fault, and a fault code is stored.
Possible cause:
Open-circuit in the data link cable between the in-
•
strument cluster and other control units. Short-circuit to ground in the data link cable be-
W3005311
A03 Instrument Cluster
•
tween the instrument cluster and other control units. Short-circuit to voltage in the data link cable be-
•
tween the instrument cluster and other control units.
Reaction from the instrument cluster:
Fault code is stored.
•
Noticeable external symptoms:
Lighting functions disappear from the instrument
•
cluster. J1939 data link functions cease to operate.
•
Appropriate action:
Fault-trace the J1939 data link, see service informa-
•
tion group 371 ”Data links, fault-tracing”.
49
Page 54
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 SID 240 Program Memory
General information
At start-up a checksum is calculated for the software in the flash memory for the instrument cluster. This is com­pared with a previously stored checksum to check that the software is correct.
Component: A03 instrument cluster
T2012704
Fault code
FMI 2
Intermittent or incorrect data.
Conditions for fault code:
If the checksum calculated at start-up does not
•
agree with the previously saved checksum, the in­strument cluster interprets this as a fault and a fault code is set.
Note: If a fault code is set, reprogram the instru­ment cluster.
Possible cause:
Software fault.
•
Faulty memory circuit.
•
Reaction from the instrument cluster:
”Boot mode” requested.
•
Noticeable external symptoms:
”Boot mode” shown on the display.
•
50
Page 55
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 SID 250 J1587/1708 Information Link
Appropriate check:
Fault-trace the J1587/1708 information link, see ser-
•
vice information ”Data links, fault-tracing” function group 371.
Isolate/disconnect the instrument cluster from the
•
data link by disconnecting the harness connections at the rear. Check for active SID250 fault codes in other control units. If no other active faults are reported, it is likely the instrument cluster has an in­ternal problem. Replace the instrument cluster. If other control units do report an active SID250 fault, the problem is likely in the data link wiring or an-
W3005312
A03 Instrument Cluster
other control unit.
FMI 4
Abnormally low voltage or short-circuit to lower voltage.
Fault code
FMI 3
Abnormally high voltage or short-circuit to higher voltage.
Conditions for fault code:
If the instrument cluster does not receive any con-
•
tact with the information link (no echo available) the fault codes is set.
Possible cause:
Open circuit in the data link.
•
Fault in the instrument cluster communication cir-
•
cuits.
Reaction from the instrument cluster:
Yellow lamp requested.
•
Fault code is stored.
•
Noticeable external symptoms:
Yellow lamp lights up and the display shows which
•
control unit should to be checked. ABS vehicle telltale may be illuminated, but this
•
does not indicate an ABS fault. The display shows the text ”CHECK
•
DATA LINK”.
Conditions for fault code:
If the instrument cluster does not receive any con-
•
tact with the information link (no echo available) the fault codes is set.
Possible cause:
Open circuit in the data link.
•
Fault in the instrument cluster communication cir-
•
cuits.
Reaction from the instrument cluster:
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up and the display shows which
•
control unit should to be checked. ABS vehicle telltale may be illuminated, but this
•
does not indicate an ABS fault.
Appropriate check:
Fault-trace the J1587/1708 information link, see ser-
•
vice information ”Data links, fault-tracing” function group 371.
51
Page 56
Group 38 Fault Codes, Instrument Cluster Troubleshooting
FMI 9
Abnormal update rate.
Conditions for fault code:
If a control unit does not transmit PID 44 to the in-
•
strument cluster the control unit interprets this as a fault and a fault code is stored.
Possible cause:
The particular control unit is in the process of being
•
programmed and therefore does not transmit any signals on the information link.
Reaction from the instrument cluster:
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up and the display shows which
•
control unit should to be checked. ABS vehicle telltale may be illuminated, but this
•
does not indicate an ABS fault.
Appropriate check:
Fault-trace the J1587/1708 information link, see ser-
•
vice information on ”Data links, fault-tracing” function group 371.
FMI 12
Defective unit or component.
Conditions for fault code:
If the control units do not send PID 44 to the instru-
•
ment cluster, but the instrument cluster still has contact with the link (echo is available), the instru­ment cluster interprets this as a fault and a fault code is stored.
Possible cause:
One of the control units is being programmed and
•
has sent a command to the other control units not to transmit signals on the information link in the mean­time.
Reaction from the instrument cluster:
Yellow lamp requested.
•
Noticeable external symptoms:
Yellow lamp lights up.
•
The display shows the text ”CHECK DATA LINK”.
•
ABS vehicle telltale may be illuminated, but this
•
does not indicate an ABS fault.
Appropriate check:
Fault-trace the J1587/1708 information link, see ser-
•
vice information on ”Data links, fault tracing” function group 371.
52
Page 57
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 SID 253 Calibration Memory, EEPROM
General information
At start-up a check sum is calculated for the data set in the instrument cluster’s EEPROM memory. This is com­pared with a previously stored check sum to check that the data set is correct.
Component: A03 Instrument cluster
T2012704
Fault code
FMI 2
Intermittent or incorrect data.
Conditions for fault code:
If the content of the memory circuit is faulty the in-
•
strument cluster interprets this as a fault and a fault code is set.
Possible cause:
Error when programming.
•
Fault in the memory circuit.
•
Reaction from the instrument cluster:
Undetermined.
•
Noticeable external symptoms:
Undetermined.
•
53
Page 58
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PSID 7 Reference Resistance
General information
Component: A 03 Instrument cluster
Fault code
FMI 3
Abnormally high voltage or short-circuit to higher voltage.
Conditions for fault code:
If the instrument cluster registers a resistance of less than 22.5 fault and a fault code is stored.
Possible cause:
•
•
•
Reaction from the instrument cluster:
•
Noticeable external symptoms:
•
the instrument cluster interprets this as a
Hardware fault in the instrument cluster. Fault in the fuel level sensor. Fault in the ambient temperature sensor.
Fault code is stored.
No reading on the gauges from the directly con­nected sensors (ambient temperature and fuel level).
FMI 4
Abnormally low voltage or short-circuit to lower voltage.
Conditions for fault code:
If the instrument cluster registers a resistance of less than 22.5 fault and a fault code is stored.
Possible cause:
•
•
•
Reaction from the instrument cluster:
•
Noticeable external symptoms:
•
Appropriate check:
•
the instrument cluster interprets this as a
Hardware fault in the instrument cluster. Fault in the fuel level sensor. Fault in the ambient temperature sensor.
Fault code is stored.
No reading on the gauges from the directly con­nected sensors (ambient temperature and fuel level).
Check all the wiring directly connected to the instru­ment cluster.
Appropriate check:
Check all the wiring directly connected to the instru-
•
ment cluster.
54
Page 59
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PSID 200 J1939 Data Link Interruption, Engine ECU
General information
The control units share important messages via the SAE J1939 Control data link. If one control unit is missing in­formation from another control unit, this fault code is used to indicate which control unit is expected to trans­mit the message via the J1939 data link.
Fault code
FMI 9
Abnormal update rate.
Conditions for fault code:
If the instrument cluster does not receive the mes-
•
sage from the engine control unit via the J1939 control data link within a specific time period, the in­strument cluster interprets this as a communication fault from the engine control unit and a fault code is stored.
Possible cause:
Fault in the J1939 data link between the instrument
•
cluster and the engine control unit.
Reaction from the instrument cluster:
Fault code is stored.
•
•
Noticeable external symptoms:
•
Warning light lights up.
•
Appropriate check:
Fault-trace the J1939 data link, see service informa-
•
tion group 371 ”Data links, fault-tracing”.
55
Page 60
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PSID 201 J1939 Data Link Interruption, Vehicle ECU
General information
The control units share important messages via the SAE J1939 Control data link. If one control unit is missing in­formation from another control unit, this fault code is used to indicate which control unit is expected to trans­mit the message via the J1939 data link.
Fault code
FMI 9
Abnormal update rate.
Conditions for fault code:
If the instrument does not receive the message from
•
the vehicle control unit via the J1939 control data link within a specific time period, the instrument cluster interprets this as a communication fault from the vehicle control unit and a fault code is stored.
Possible cause:
Fault in the J1939 data link between the instrument
•
cluster and the vehicle control unit.
Reaction from the instrument cluster:
Fault code is stored.
•
Brake lights requested.
•
Noticeable external symptoms:
Speed signal missing.
•
Warning light lights up.
•
Appropriate check:
Fault-trace the J1939 data link, see service informa-
•
tion group 371 ”Data links, fault-tracing”.
56
Page 61
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PSID 204 J1939 Data Link Interruption, Anti-lock Brake ECU
General information
The control units share important messages via the SAE J1939 Control data link. If one control unit is missing in­formation from another control unit, this fault code is used to indicate which control unit is expected to trans­mit the message via the J1939 data link.
Fault code
FMI 9
Abnormal update rate.
Conditions for fault code:
If the instrument cluster does not receive the mes-
•
sage from the Anti-lock brake (ABS) control unit via the J1939 control data link within a specific time pe­riod, the instrument cluster interprets this as a communication fault from the engine control unit and a fault code is stored.
Possible cause:
Fault in the J1939 data link between the instrument
•
cluster and the ABS control unit.
Reaction from the instrument cluster:
Fault code is stored.
•
•
Noticeable external symptoms:
•
Warning light lights up.
•
Appropriate check:
Fault-trace the J1939 data link, see service informa-
•
tion group 371 ”Data links, fault-tracing”.
57
Page 62
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PSID 210 J1939 Data Link Interruption, Lighting Control Module
General information
The control units share important messages via J1939 control data link. If one control unit is missing information from another control unit, this fault code is used to indi­cate which control unit is expected to transmit the message via the J1939 data link.
Fault code
FMI 9
Abnormal update rate.
Conditions for fault code:
If the instrument cluster does not receive the mes-
•
sage, from the external lighting control unit via the J1939 control data link, within a specific time period, the instrument cluster interprets this as a communi­cation fault from the external lighting control unit and a fault code is stored.
Possible cause:
Fault in the external lighting control unit.
•
Reaction from the instrument cluster:
Fault code is stored.
•
Brake lights requested.
•
Noticeable external symptoms:
Lighting functions missing.
•
Warning light lights up.
•
Appropriate check:
Fault-trace the J1939 data link, see service informa-
•
tion group 371 ”Data links, fault-tracing”.
58
Page 63
Group 38 Fault Codes, Instrument Cluster Troubleshooting
MID 140 PSID 232 J1939-3 Control Link
(Link to Steering Wheel Module [SWM])
Fault code
FMI 2
Intermittent or incorrect data.
Conditions for fault code:
If the control unit cannot communicate via the J1939
•
control data link the instrument cluster interprets this as a fault, and a fault code is stored.
Possible cause:
Open-circuit in the data link cable between the in-
•
strument cluster and other control unit (SWM). Short-circuit to ground in the data link cable between
W3005311
A03 Instrument Cluster SWM Steering Wheel Module
•
the instrument cluster and other control unit (SWM). Short-circuit to voltage in the data link cable between
•
the instrument cluster and other control unit (SWM).
Reaction from the instrument cluster:
Fault code is stored.
•
Noticeable external symptoms:
Radio functions are not shown in the instrument
•
cluster display. Lights cannot be controlled by steering wheel
•
switches.
Appropriate check:
Fault-trace the J1939 data link, see service informa-
•
tion group 371 ”Data links, fault-tracing”.
59
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60
Page 65
Feedback
One of our objectives is that workshop personnel should have access to correct and appropriate service manuals where it concerns fault tracing, repairs and maintenance of Volvo trucks. In order to maintain the high standards of our literature, your opinions and experience when using this manual would be greatly appreciated. If you have any comments or suggestions, make a copy of this page, write down your comments and send them to us, either via telefax or mailing directly to the address listed below.
To Volvo Trucks North America, Inc. Dept. 516 Service Publications 7825 National Service Road P.O. Box 26115 Greensboro, NC 27402-6115 USA Fax (336) 393-3170
Comments/proposals
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Concerns Service Manual: ...............................................................................................................................
Page 66
Operation Numbers
3811-21-02-01 MID 140 PID 78 Rear Rear Axle Temperature, Check ...............21
3811-21-02-02 MID 140 PID 96 Fuel Level, Check . ......................24
3811-21-02-04 MID 140 PID 171 Ambient Temperature, Check . . . ...............38
3811-21-02-05 MID 140 PID 177 Transmission Oil Temperature, Check . . . ...........41
3811-21-02-08 MID 140 PID 158 Battery Voltage, Check . . . . . . ...............36
3811-21-02-10 MID 140 PID 77 Forward Rear Axle Temperature, Check . . ...........18
3811-21-02-13 MID 140 PID 116 Application Air Pressure, Check . ...............27
3811-21-02-14 MID 140 PID 117 Air Brake Pressure, Front, Check . ...............30
3811-21-02-15 MID 140 PID 118 Air Brake Pressure, Rear, Check . ...............33
3811-21-02-16 MID 140 PID 178 Air Suspension Pressure, Front, Check . . ...........44
3811-21-02-17 MID 140 PID 179 Air Suspension Pressure, Rear, Check . . ...........47
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Volvo Trucks North America, Inc.
P.O. Box 26115, Greensboro, NC 27402-6115
Volvo Trucks Canada, Ltd.
6490 Vipond Drive, Mississauga, Ontario L5T 1W8
http://www.volvotrucks.volvo.com
PV776-TSP161704 (500) 3.2003 © Volvo Trucks North America, Inc., 2003
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