Volvo FM Series Quick start guide

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Service Manual
Trucks
Group 37
Release 03
Wiring diagram
FM, FH, NH12 VERSION2
FM, FH CHID A622782–
FM, FH CHID B433164–
20177407

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Foreword
The descriptions and service procedures contained in this manual are based on designs
and methods studies carried out up to September 06.
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, 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
reference to V.S.T. (Volvo Standard Times).
Service procedures which do not include an operation number in the title are for general
information and no reference is made to 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 occur.
Volvo Truck Corporation
Göteborg, Sweden
Order number: 20177407
Repl: Service Manual Group 37 TSP20176779
© 06 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. ENG23078.ihval

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Contents
Example of wiring diagram ................................................................... 2
Component wiring diagram index ........................................................ 5
Component wiring diagrams ................................................................ 8
Illustrations index .............................................................................. 115
Illustrations ......................................................................................... 117
Fuses ................................................................................................... 223
Relays ................................................................................................. 225
Wiring harness illustration index ..................................................... 227
Ground connections .......................................................................... 230
List of ground connections ................................................................. 232
List of connectors .............................................................................. 233
List of components ............................................................................ 244
Abbreviations ..................................................................................... 250
Cable colour code .............................................................................. 252
Feedback
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Group 37 Wiring diagram FM, FH, NH12 Example of wiring diagram
Example of wiring diagram
Component wiring diagram title, variant/subtitle and
symbol.
Coordinates (B 1).
30 Voltage battery, kl.30.
15 Voltage with starter key in drive position, kl.15.
DR Voltage with starter key in drive position, preheat
position and start position, kl.DR.
61 Voltage when alternator charges, kl.61.
Splice.
Fuse.
Reference arrow, for diagram BA, coordinates 0 C,
component A17, connector PA pin 29.
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Group 37 Wiring diagram FM, FH, NH12 Example of wiring diagram
The maximum of variants are drawn, think about that all
wires and components are not standard for all markets or
vehicle models.
Switch.
Relay.
Conductor on circuit card.
Connector MB terminal 9.
Wire area and colour.
Thin lines, wires.
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Group 37 Wiring diagram FM, FH, NH12 Example of wiring diagram
Earth connection point 4, earth connection 1 and wire 2.
Earth connection to circuit card.
Earth connection without wire.
Same splice can be drawn on several diagrams. The wire
from the splice to the earth connection point will only be
drawn and coded on one diagram. On the other diagrams
will only the earth connection point be written besides the
splice.
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagram index
Component wiring diagram index
AA Power supply, starting system ................................................................ page 8
AB Main switch ............................................................................................. page 9
AC Power distribution ................................................................................... page 10
AE ADR, main switch ................................................................................... page 11
BA Vehicle ECU ............................................................................................ page 12
BE ACC Adaptive cruise control ................................................................... page 13
BI Instrument cluster ................................................................................... page 14
BM Tachograph in dash ................................................................................ page 15
BN Tachograph in shelf ................................................................................. page 16
BU Dynafleet TIS-LOG/TIS-MAP ................................................................. page 17
BU 2 Dynafleet TIS-BAS/TIS-MED/TIS-HIGH ................................................. page 18
BX FMS Gateway ......................................................................................... page 19
BY Volvo link (VERS-SAM) .......................................................................... page 20
BZ Toll collect ............................................................................................... page 21
BZ RHD Toll collect ............................................................................................... page 22
CK Engine interface D9B, D13A, D16C4, D16E ........................................... page 23
CL Engine interface D12F ............................................................................ page 24
CM Engine interface D12D ............................................................................ page 25
CO Engine D9B, D13A ................................................................................. page 26
Engine D12D .......................................................................................... page 27
Engine D12F ........................................................................................... page 28
Engine D16C4 ........................................................................................ page 29
Engine D16E .......................................................................................... page 30
CP ISX functions, 12V trailer ABS converter (AUS only) .............................. page 31
CS Engine ISX (AUS only) ........................................................................... page 32
CV SCR ........................................................................................................ page 33
DB Gear selector ECU (GEARTRONIC) ...................................................... page 34
DC Gear selector ECU (I-SHIFT/POWERTRONIC) ..................................... page 35
DE Geartronic automatic gearshift ............................................................... page 36
DI Powertronic ............................................................................................. page 37
DI RHD Powertronic ............................................................................................. page 38
DM Retarder manual gearshift ...................................................................... page 39
DN I-shift VT2412B ....................................................................................... page 40
DP I-shift AT2412C/AT2512C/ATO2512C ..................................................... page 41
DQ Power take off ......................................................................................... page 42
DU Diff-lock ................................................................................................... page 43
EE ABS basic, D-version .............................................................................. page 44
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagram index
EE RHD ABS basic, D-version .............................................................................. page 45
EI ABS/ASR D-version ................................................................................ page 46
EI RHD ABS/ASR D-version ................................................................................ page 47
EO EBS ECU ................................................................................................ page 48
EO RHD EBS ECU ................................................................................................ page 49
EP EBS modulators ...................................................................................... page 50
FA Air-suspension ....................................................................................... page 51
FA RHD Air-suspension ....................................................................................... page 52
FG Load indicator ......................................................................................... page 53
FI Bogie lift A-ride ....................................................................................... page 54
FK Bogie lift A-ride with axle load limiter ...................................................... page 55
FK RHD Bogie lift A-ride with axle load limiter ...................................................... page 56
FM Axle lock, self steered axle ..................................................................... page 57
FO Electronic steered axle ........................................................................... page 58
FP Dual steered front axle ........................................................................... page 59
FQ Air dryer .................................................................................................. page 60
FU Central lubrication system ...................................................................... page 61
GA LCM head lights ...................................................................................... page 62
GB LCM trailer .............................................................................................. page 63
GC LCM rear lights ....................................................................................... page 64
GC RHD LCM rear lights ....................................................................................... page 65
GD HID relays ............................................................................................... page 66
GE Rear lights overhang ............................................................................... page 67
GF Rear lights, India/Korea .......................................................................... page 68
GG Trailer connections, RIGID ...................................................................... page 69
GH Trailer connections, TRACTOR ............................................................... page 70
GI LCM head lights (VERS-SAM TYPE-N) ................................................. page 71
GK Trailer connections (AUS only) ............................................................... page 72
GL Identification lamps ................................................................................. page 73
GM Wiper, washer ......................................................................................... page 74
GQ Horn ........................................................................................................ page 75
GR Trailer connections TREL14 ................................................................... page 76
GU Headlights adjust .................................................................................... page 77
HG Climate unit, CU,-BAS,-MCC,-ECC ........................................................ page 78
HI Air heater ................................................................................................ page 79
HM Water heater ........................................................................................... page 80
HP Short stop cab heater ............................................................................. page 81
HY Climat unit, CU,-HEAT,-ACMAN,-ACAUT. ............................................... page 82
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagram index
HY RHD Climat unit, CU,-HEAT,-ACMAN,-ACAUT. ............................................... page 83
HZ Air cooler, Brazil ...................................................................................... page 84
IA El. heated/adj. seat ................................................................................ page 85
IE El. heat/adj. mirrors, El. window winders ............................................... page 86
IF Foldable mirror bracket ........................................................................... page 87
IH Interior light ............................................................................................. page 88
IJ Interior light, storage ............................................................................... page 89
IM Central locking, immobiliser .................................................................... page 90
IQ El. sunroof, cig. lighter, refrigerator ........................................................ page 91
IR 12V power supply ................................................................................... page 92
IS SRS. Air-bag ........................................................................................... page 93
IU Radio ...................................................................................................... page 94
IU RHD Radio ...................................................................................................... page 95
IV Amplifier .................................................................................................. page 96
IX Integrated telephone ............................................................................... page 97
IZ Backup camera ....................................................................................... page 98
KA Cab tilt .................................................................................................... page 99
KE Load light, 5:th wheel lamp ..................................................................... page 100
KI Light sign ................................................................................................ page 101
KM Beacon warning light .............................................................................. page 102
ME Extra fuse block, key switch relay ........................................................... page 103
NA Body builder (BB), auxsw-6 and swapbody ............................................ page 104
NB Body builder (BB), tailprep and swapbody .............................................. page 105
NC Body builder (BB), ELCE-CK, BBM, PTO2 ............................................. page 106
NI Extra spotlamps front/roof, max 4x70W .................................................. page 107
NK Burglar alarm .......................................................................................... page 108
NU Body builder (BB), DUAL-SPEED ........................................................... page 109
OA Tyre pressure monitoring (TPM) ............................................................. page 110
XA Bus J1708/J1587 .................................................................................... page 111
XB Bus J1939 ............................................................................................... page 112
XC Bus J1939–7, OBD ................................................................................. page 113
ZA RHD Ground/Misc. ......................................................................................... page 114
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
Component wiring diagrams
T3019639
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019490 9

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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019640
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019641 11

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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019642
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019643 13

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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019644
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019645 15

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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019646
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019647
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Group 37 Wiring diagram FM, FH, NH12 Component wiring diagrams
T3019648
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