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FH4
Wiring Diagram
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Volvo FH4 Wiring Diagram

Service Information
Volvo Truck Corporation
Wiring diagram
FH (4)
CHID A740874– CHID B645496–
CHID D200003–
CHID W112925–
Foreword
The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to December 2012.
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 judged to have a significant bearing on this manual, an updated version of this manual will be issued to cover the changes.
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 occur.
Volvo Truck Corporation
Göteborg, Sweden
Note: Check always the latest information at the “Wiring diagrams-site”.
©2012 Volvo Truck Corporation, Göteborg, Sweden
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 Truck Corporation .
Contents
Component wiring diagram index ..............................................................................................1
Component wiring diagrams...................................................................................................... 5
Illustrations index ................................................................................................................. 124
Illustrations.......................................................................................................................... 125
Fuses................................................................................................................................... 220
Relays.................................................................................................................................. 223
FRC (A01) connectors........................................................................................................... 225
Wiring harness layout ........................................................................................................... 229
Ground connections ............................................................................................................. 231
List of connectors................................................................................................................. 232
List of components............................................................................................................... 274
Abbreviations....................................................................................................................... 287
Cable colour code................................................................................................................. 289
Feedback ............................................................................................................................. 291
Component wiring diagram index
AA
AB
AC
AD
AE
AF
BA
BC
BE
BG
BU
BX
CA
CA1
CB
Power supply, starting system ................................................................... “ ”, page 5
Power distribution, CCIOM ....................................................................... “ ”, page 6
Main switch, UADR.................................................................................... “ ”, page 7
Main switch, ADR1/ADR2 ......................................................................... “ ”, page 8
Main switch, ADR3 .................................................................................... “ ”, page 9
Key switch.................................................................................................. “ ”, page 10
Instrument.................................................................................................. “ ”, page 11
Tachograph................................................................................................ “ ”, page 12
VMCU, Vehicle Master Control Unit .......................................................... “ ”, page 13
CIOM, Cab IO Module ............................................................................... “ ”, page 14
TIS Telematics service...............................................................................
TIS Toll collect, FMS connector .................................................................
Engine interface ........................................................................................
Engine interface, networks .......................................................................
Engine D13, EM-EC01 ..............................................................................
Engine D13, EM-EC06/EM-EU5, page 1 .................................................. “ ”, page 20
“ ”, page 15
“ ”, page 16
“ ”, page 17
“ ”, page 18
“ ”, page 19
CE
CE1
CF
CF AUS
CK
CK1
CL
DA
DA1
DC
DC1
DG
DK
DM
EA
Engine D13, EM-EC06/EM-EU5, page 2 .................................................. “ ”, page 21
Engine D13, EML4 EM-EU6, page 1......................................................... “ ”, page 22
Engine D13, EML4 EM-EU6, page 2......................................................... “ ”, page 23
Engine D13, EM-EU6, page 1 ................................................................... “ ”, page 24
Engine D13, EM-EU6, page 2 ................................................................... “ ”, page 25
Engine D16, page 1 ................................................................................... “ ”, page 26
Engine D16, page 2 ................................................................................... “ ”, page 27
After treatment system, EM-EU5...............................................................
After treatment system, EM-EU5...............................................................
After treatment system, Adblue tank control, EM-EU5..............................
After treatment system, Adblue tank control AUSTRALIA ........................
After treatment system, EML4 EM-EU6 ....................................................
After treatment system, EML4 EM-EU6 ....................................................
After treatment system, Adblue tank control, EML4 EM-EU6 ...................
Transmission, manual (interface) ..............................................................
Transmission, manual (gearbox and retarder)..........................................
Transmission , I-SHIFT (interface) ............................................................
Transmission, I-SHIFT (gearbox and retarder) .........................................
Differential lock and fuel level sensor........................................................
Retarder (interface)....................................................................................
Retarder (interface) EML4 EM-EU6 .........................................................
ABS............................................................................................................
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“ ”, page 38
“ ”, page 39
“ ”, page 40
“ ”, page 41
“ ”, page 42
Wiring diagram Page 1 (292)
EE
EF
EG
EH
EI
FA
FB
FC
FD
FE
FH
FI
FL
FM
FO
FQ
EBS, control unit ........................................................................................
EBS, front axle modulator..........................................................................
EBS, rear axle modulator ..........................................................................
EBS, 6x2 and tridem..................................................................................
EBS, trailer modulator................................................................................
Air-suspension, front..................................................................................
Air-suspension, rear, level sensor, WRG...................................................
Air-suspension, rear, 6x2, 6x4 and tridem, valves.....................................
Air-suspension, rear, 4x2 ...........................................................................
Air management, APM, Air Production Modulator with EPB.....................
Front axle steering, hydraulic ....................................................................
Front axle steering, electronic, FAS ..........................................................
Rear axle steering, electronic, RAS ..........................................................
Rear axle steering, self steering, RAS.......................................................
EAS, extra axle steering ...........................................................................
Bogie lift, A-ride with load sensor .............................................................
“ ”, page 43
“ ”, page 44
“ ”, page 45
“ ”, page 46
“ ”, page 47
“ ”, page 48
“ ”, page 49
“ ”, page 50
“ ”, page 51
“ ”, page 52
“ ”, page 53
“ ”, page 54
“ ”, page 55
“ ”, page 56
“ ”, page 57
“ ”, page 58
GA
GB
GC
GE
GF
GK
GL
GM
GN
GP
HA
HB
HC
HD
HE
HF
IA
IB
IC
IF
IG
IK
IL
Exterior light, front, left, road......................................................................
Exterior light, front, right, bending light road..............................................
Exterior light, rear ......................................................................................
Exterior light, side and load light................................................................
Exterior light, roof, identification light.........................................................
Trailer connection, RIGID ..........................................................................
Trailer connection, TRACTOR...................................................................
Trailer connections, RIGID TREL-14.........................................................
Trailer light converter, AUSTRALIA ..........................................................
Wiper, washer............................................................................................
Climate unit ................................................................................................
Integrated parking cooler, IPC ...................................................................
Parking heater, water.................................................................................
Parking heater, air......................................................................................
Amb. temp, short stop heater, AC clutch ...................................................
Fuel hose heater........................................................................................
Interior light ................................................................................................
Interior light ................................................................................................
Interior light, instep light.............................................................................
Comfort accessories..................................................................................
12V power supply 20A/20A/11A................................................................
Audio..........................................................................................................
Amplifier.....................................................................................................
“ ”, page 59
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“ ”, page 67
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“ ”, page 79
“ ”, page 80
“ ”, page 81
Page 2 (292) Wiring diagram
IN
IO
IP
IR
IS
IT
IU
KA
LA
NA
NB
NC
ND
ND1
ND2
NE
NF
NK
PA
PB
PE
PH
RA
SA
SB
SC
SD
SE
SF
SK
SL
XA
YA
YB
YD
YF
YG
YH
YK
DVD, bunk display ..................................................................................... “ ”, page 82
Video switch, camera, SID display............................................................
Horn ...........................................................................................................
Door, left.....................................................................................................
Door, right ..................................................................................................
Seats..........................................................................................................
Sun roof, sun visor.....................................................................................
Cab tilt........................................................................................................
Lubrication system.....................................................................................
Body builder, BBM ..................................................................................... “ ”, page 91
Body builder, VMCU ..................................................................................
Body builder, CCIOM, PTO .......................................................................
Body builder electrical center ....................................................................
Body builder electrical center AUXSW4 ...................................................
Body builder, Tipper prep kit ......................................................................
Body builder electrical center, extra lighting..............................................
Body builder extra lighting ......................................................................... “ ”, page 98
Body builder plough lamps ........................................................................
DACU, Driver Assistance Control Unit ......................................................
Lane position .............................................................................................
SRS, Supplementary Restrain System, airbag .........................................
Alcolock, start prevention system.............................................................. “ ”, page 103
Alarm..........................................................................................................
Backbone 1................................................................................................
Backbone 2................................................................................................
Cab subnet ................................................................................................
Chassis subnet ..........................................................................................
Infotainment subnet ...................................................................................
Security subnet..........................................................................................
Switch module topology, CIOM ................................................................
Switch module topology, HMIIOM .............................................................
OBD interface ............................................................................................
Ground, chassis, ECU ...............................................................................
Ground, chassis, front/rear load ...............................................................
Ground, chassis, lower front ......................................................................
Ground, cab, FRC, BBEC..........................................................................
Ground, cab, instrument panel ..................................................................
Ground, cab, instrument panel ..................................................................
Ground, cab, front shelf .............................................................................
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“ ”, page 115
“ ”, page 116
“ ”, page 117
“ ”, page 118
“ ”, page 119
“ ”, page 120
Wiring diagram Page 3 (292)
YK_RHD
Ground, cab, front shelf, headliner ............................................................
“ ”, page 121
YM
YN
Ground, cab, lower bunk/floor ...................................................................
Ground, cab, firewall, cockpit carrier plate ................................................
“ ”, page 122
“ ”, page 123
Page 4 (292) Wiring diagram
Component wiring diagrams
T3086397
Wiring diagram Page 5 (292)
T3086398
Page 6 (292) Wiring diagram
T3065413
Wiring diagram Page 7 (292)
T3086399
Page 8 (292) Wiring diagram
T3065411
Wiring diagram Page 9 (292)
T3086400
Page 10 (292) Wiring diagram
T3065416
Wiring diagram Page 11 (292)
T3086403
Page 12 (292) Wiring diagram
T3086404
Wiring diagram Page 13 (292)
T3086405
Page 14 (292) Wiring diagram
T3086406
Wiring diagram Page 15 (292)
T3086407
Page 16 (292) Wiring diagram
T3065427
Wiring diagram Page 17 (292)
T3086408
Page 18 (292) Wiring diagram
T3065429
Wiring diagram Page 19 (292)
T3080222
Page 20 (292) Wiring diagram
T3065431
Wiring diagram Page 21 (292)
T3081109
Page 22 (292) Wiring diagram
T3071758
Wiring diagram Page 23 (292)
T3080593
Page 24 (292) Wiring diagram
T3080594
Wiring diagram Page 25 (292)
T3065432
Page 26 (292) Wiring diagram
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