Volvo FH12, FH16 Service Manual

Service Manual

Trucks

Group 37

Version 01

Wiring diagram

FH12, FH16 LHD

To be inserted into the binders for FM, FH.

TSP119544

Foreword

The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to September 1998.

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 situation, handling or circumstance which should be observed. Important: Indicates a situation, handling or circumstance which should be emphasized

so as not to lead to personal injury or damage to property. Caution: Indicates a potentially hazardous situation which, if not avoided, may result in

minor or moderate injury or damage to property. Warning: Indicates a potentially hazardous situation which, if not avoided, could result

in death, serious injury or major damage to property. Danger: Indicates an imminently hazardous situation which, if not avoided, will result in

death or serious injury.

Volvo Truck Corporation

Göteborg, Sweden

Order number: TSP119544

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

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

Examples of symbols on wiring diagram ........................................... 3

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

Component wiring diagrams ................................................................ 7

Illustrations index ................................................................................ 48

Illustrations ........................................................................................... 49

Circuit card electrical centre ............................................................ 104

Fuses on circuit card electrical centre ........................................... 105

Relays on circuit card electrical centre .......................................... 106

Cable harness illustration index ...................................................... 107

List of connectors ............................................................................. 110

List of components ........................................................................... 117

Abbreviations ..................................................................................... 123

Cable colour code ............................................................................. 124

Feedback

Group 37 Wiring diagram FH12, FH16 LHD Example of wiring diagram

Example of wiring diagram

Refer to the list of contents for the designation of the circuit diagram. If the circuit diagram designation is boxed in with broken lines this means that the circuit diagram is not standard on all market or vehicle models.

Seek column.

30 Voltage battery, kl.30. 15 Voltage with starting key in drive position, kl.15. 61 Voltage when alternator charges, kl.61.

Reference arrow (for circuit diagram EA, seek column

13).

Switch, comp. no. (104).

Single lines, cables.

Relay, comp. no. (303).

Cable area and colour (0.75 mm

Connector (CLA terminal 4).

Bulb, comp. no. (403) A broken line box round the component number shows that the component is not standard on all markets or vehicle models.

If the line is broken this means the cable is not standard on all markets or vehicle model.

Earth connection point no: 2. and earth terminal no: 4. (see diagram Earth Connections).

blue).

Joint sleeve.

T3009608

Group 37 Wiring diagram FH12, FH16 LHD Examples of symbols on wiring diagram

Examples of symbols on wiring diagram

Battery

Connector

Junktion

Fuse

Joint sleeve

Cable

Twisted cables

Conductor on circuit card

Earth connection and cable

Switch

Switch, starting switch

Closing contakt

Closing contakt, pressure-regulated

Break contakt, temperature-regulated

T3009609

Closing contakt, time-regulated

Slip contakt, horn

Relay

Relay with internal circuit diagram

Group 37 Wiring diagram FH12, FH16 LHD Examples of symbols on wiring diagram

Bulb

Bulb, full beams and dipped beams

Bulb, tail light

Alternator

Starter motor

Washer motor

Windscreen wiper motor

Solenoid valve with diode

Pressure sensor

Temperature sensor

Level sensor

Starting heater

Cigarette lighter

Horn

Rheostat

Buzzer

Loudspeaker

T3009610

Group 37 Wiring diagram FH12, FH16 LHD Component wiring diagram index

Component wiring diagram index

AA AC BL BN CE CG CH CI CK CL CN EA ED EJ

Power supply, starting system, immobiliser .................................................................... page 7

Vehicle ECU .................................................................................................................... page 8

Engine ECU, fuel injection system, preheating, FH12 .................................................... page 9

Engine ECU, fuel injection system, preheating, FH16 .................................................... page 10

Head light, parking light, marker light, DRL ...................................................................

Fog light, rear fog light ....................................................................................................

Spot light (STD) DRIVL2 .................................................................................................

Spot light (EU) DRIVL2EC ..............................................................................................

Brake light ........................................................................................................................

Trailer controlled exhaust brake ......................................................................................

Direction indicator, hazard warning light .........................................................................

Reversing light, reversing warning alarm ........................................................................

Loading light, ﬁfth wheel light ..........................................................................................

Roof sign light, L1H1/L2H1 .............................................................................................

page 11 page 12 page 12 page 12 page 13 page 13 page 14 page 14 page 15 page 15

EK EN ER ES EV EX FA GA HA HB HC HE HG HH

Roof sign light, L2H2 .......................................................................................................

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

Interior light, L1H1/ L2H1, alarm clock/timer ..................................................................

Interior light, L2H2/L2H3, alarm clock/timer ....................................................................

Cigarette lighter ...............................................................................................................

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

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

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

Climate unit .....................................................................................................................

Cab heater, EBERSPÄCHER D1LCC, PH-CAB .............................................................

Cab and engine heater, WEBASTO THERMO 90, PH-ENGCA ....................................

Electrically heated and adjusted seat .............................................................................

Electrically heated mirrors ...............................................................................................

Electrically operated mirrors ............................................................................................

page 16 page 16 page 17 page 18 page 19 page 19 page 19 page 20 page 21 page 22 page 23 page 24 page 24 page 25

HK HM HO HP JA KA

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

Fuel ﬁlter heater ..............................................................................................................

Water separator heater ...................................................................................................

Electrically cab tilt ..........................................................................................................

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

Electrically operated window winders .............................................................................

page 25 page 25 page 25 page 26 page 26 page 27

Group 37 Wiring diagram FH12, FH16 LHD Component wiring diagram index

KB KE KH LD LE LG LJ LL MA MD ME MF MG NA

Electrically sunroof ..........................................................................................................

SRS, air-bag ....................................................................................................................

Central door lock .............................................................................................................

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

Double power take-off .....................................................................................................

Differential lock ................................................................................................................

Bogie lift, tag axle lock, RADT-LA ...................................................................................

Tag axle lock, RADT-A6S ................................................................................................

Bogie lift hydraulic, RADT-AR .........................................................................................

Bogie lift hydraulic, with axle load limiter, RADT-AR ......................................................

Air suspension, 6x2/6x4/8x2/8x4, SUSPL-EC ................................................................

Air suspension, 4x2, SUSPL-EC .....................................................................................

Rear air suspension, 4x2, TRACTOR, SUSPL-EC .........................................................

Instrument LHS module ..................................................................................................

page 27 page 28 page 28 page 28 page 29 page 29 page 30 page 30 page 31 page 32 page 33 page 34 page 35 page 36

NB NC NZ OA OB PA TA TB XA ZA ZB ZD ZE

Instrument central module with tachograph ....................................................................

Instrument RHS module ..................................................................................................

Instrument central module without tachograph ...............................................................

Basic ABS, D-version ......................................................................................................

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

Headlight level control .....................................................................................................

Refrigerator ......................................................................................................................

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

Extra fuses, key switch relay ...........................................................................................

Earth connections ...........................................................................................................

ADR battery main switch, current limiter .......................................................................

Air heater EBERSPÄCHER TMD, ADR-FRA ..................................................................

page 37 page 38 page 39 page 40 page 41 page 42 page 42 page 42 page 43 page 44 page 45 page 46 page 47