Volvo FM9, FM12, FH12, FH16, NH12 Wiring Diagram

Service Manual

Trucks

Group 37

Release 01

Wiring diagram

FM9, FM12, FH12, FH16, NH12 VERSION2

FM, FH CHID A610059– FM, FH CHID B411901–

20037631

Foreword

The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to September 05.

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 unsafepractice where serious personal injury or death could occur.

Volvo Truck Corporation

Göteborg, Sweden

Order number: 20037631

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.

ENG18353

Contents

Example of wiring diagram ................................................................... 2

Component wiring diagram index ........................................................ 5

Component wiring diagrams ................................................................ 8

Illustrations index ................................................................................ 90

Illustrations ........................................................................................... 91

Fuses ................................................................................................... 171

Relays ................................................................................................. 173

Wiring harness illustration index ..................................................... 175

Earth connections ............................................................................. 178

List of earth connections .................................................................... 180

List of connectors .............................................................................. 181

List of components ............................................................................ 189

Abbreviations ..................................................................................... 195

Cable colour code .............................................................................. 197

Feedback

Group 37 Wiring diagram FM9, FM12, FH12, FH16, 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.

Group 37 Wiring diagram FM9, FM12, FH12, FH16, 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.

Group 37 Wiring diagram FM9, FM12, FH12, FH16, 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.

Group 37 Wiring diagram FM9, FM12, FH12, FH16, NH12 Component wiring diagram index

Component wiring diagram index

AA AB AC AE BA BE BI BM BN BU BX BY CM CO

CP CS DB DC DE DI DM DN DQ DU EE EI EO EP FA FG FI FK FM FO FP

Power supply, starting system ........................................................................................

Remote main switch .......................................................................................................

Power distribution ...........................................................................................................

ADR, main switch ...........................................................................................................

Vehicle ECU ....................................................................................................................

ACC Adaptive cruise control ...........................................................................................

Instrument cluster ...........................................................................................................

Tachograph in dash ........................................................................................................ page 15

Tachograph in shelf ......................................................................................................... page 16

Dynafleet ........................................................................................................................

FMS Gateway .................................................................................................................

Volvo link (VERS-SAM) ..................................................................................................

Engine interface ..............................................................................................................

Engine D9 .......................................................................................................................

Engine D12 .....................................................................................................................

Engine D16 .....................................................................................................................

ISX functions, 12V trailer ABS converter (AUS only) ......................................................

Engine ISX (AUS only) ...................................................................................................

Gear selector ECU (GEARTRONIC) ..............................................................................

Gear selector ECU (I-SHIFT/POWERTRONIC) .............................................................

Geartronic automatic gearshift .......................................................................................

Powertronic .....................................................................................................................

Retarder manual gearshift ..............................................................................................

I-shift ...............................................................................................................................

Power take off .................................................................................................................

Diff-lock ...........................................................................................................................

ABS basic, D-version ......................................................................................................

ABS/ASR D-version ........................................................................................................

EBS ECU ........................................................................................................................

EBS modulators ..............................................................................................................

Air-suspension ...............................................................................................................

Load indikator .................................................................................................................

Bogie lift A-ride ...............................................................................................................

Bogie lift A-ride with axle load limiter ..............................................................................

Axle lock, self steered axle .............................................................................................

Electronic steered axle ...................................................................................................

Hydraulic steered axle ....................................................................................................

page 8 page 9 page 10 page 11 page 12 page 13 page 14

page 17 page 18 page 19 page 20 page 21 page 22

page 23 page 24

page 25 page 26 page 27 page 28 page 29 page 30 page 31 page 32 page 33 page 34 page 35 page 36 page 37 page 38 page 39 page 40 page 41 page 42 page 43 page 44

Group 37 Wiring diagram FM9, FM12, FH12, FH16, NH12 Component wiring diagram index

FQ FU GA

GB GC

GD GE GF GG GH GI GK GM GQ GU HG HI HM HP HY HZ IA IE IF IH IM IQ IR IS IU IX IZ KA KE

Air dryer ..........................................................................................................................

Central lubrication system ..............................................................................................

LCM head lights ..............................................................................................................

LCM trailer ......................................................................................................................

LCM rear lights ...............................................................................................................

HID lamps ......................................................................................................................

Rear lights overhang .......................................................................................................

Rear lights, India/Korea ..................................................................................................

Trailer connections, RIGID ..............................................................................................

Trailer connections, TRACTOR .......................................................................................

LCM head lights (VERS-SAM TYPE-N) .........................................................................

Trailer connections (AUS only) .......................................................................................

Wiper, washer .................................................................................................................

Horn ................................................................................................................................

Headlights adjust ............................................................................................................

Climate unit, CU,-BAS,-MCC,-ECC ................................................................................

Air heater ........................................................................................................................

Water heater ...................................................................................................................

Short stop cab heater .....................................................................................................

Climat unit, CU,-HEAT,-ACMAN,-ACAUT. .......................................................................

Air cooler, Brazil ..............................................................................................................

El. heated/adj. seat ........................................................................................................

El. heat/adj. mirrors, El. window winders .......................................................................

Foldable mirror bracket ...................................................................................................

Interior light .....................................................................................................................

Central locking, immobiliser ............................................................................................

El. sunroof, cig. lighter, refrigerator ................................................................................

12V power supply ...........................................................................................................

SWM, SRS. Air-bag ........................................................................................................

Radio ..............................................................................................................................

Integrated telephone .......................................................................................................

Backup camera ...............................................................................................................

Cab tilt ............................................................................................................................

Load light, 5:th wheel lamp .............................................................................................

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 page 59 page 60 page 61 page 62 page 63 page 64 page 65 page 66 page 67 page 68 page 69 page 70 page 71 page 72 page 73 page 74 page 75 page 76 page 77 page 78

KI KM ME NA

Light sign ........................................................................................................................

Beacon warning light ......................................................................................................

Extra fuse block, key switch relay ...................................................................................

Body builder (BB), auxsw-6 and swapbody ....................................................................

page 79 page 80

page 81 page 82

Group 37 Wiring diagram FM9, FM12, FH12, FH16, NH12 Component wiring diagram index

NC NI NK NU OA XA XB

Body builder (BB), ELCE-CK, BBM, PTO2 .....................................................................

Extra spotlamps front/roof, max 4x70W ..........................................................................

Burglar alarm ..................................................................................................................

Body builder (BB), DUAL-SPEED ...................................................................................

Tyre pressure monitoring (TPM) .....................................................................................

Bus J1708/J1587 ............................................................................................................

Bus J1939 .......................................................................................................................

page 83 page 84 page 85 page 86 page 87 page 88 page 89