Volvo FL6 LHD Wiring Diagram

Service Manual

Trucks

Group 37

Wiring Diagram

FL6 LHD

CHID B166080–

TSP 23769/1

Foreword

The descriptions and service procedures contained in this manual are based on design
and method studies placed up to August 1996.

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

Go¨teborg, Sweden

Order number: TSP 23769/1

© 1996 Volvo Truck Corporation, Go¨teborg, 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 ....................................................... 2

Component wiring diagrams ................................................................ 5

Illustrations ........................................................................................... 32

Fuses on circuit board (32) electrical centre ................................... 85

Fuses ..................................................................................................... 86

Relays on circuit board (32) electrical centre .................................. 86

Cable harness illustration index ........................................................ 87

List of connectors ............................................................................... 90

List of components ............................................................................. 93

Abbreviations ....................................................................................... 96

Cable colour code ............................................................................... 96

Feedback

1

Group 37 Wiring Diagram FL6 LHD Component wiring diagram index

Component wiring diagram index

Starter system ...................................................................................... page 5

Coolant level, coolant temperature,
preheating, exhaust pressure governor,

exhaust brake, range inhibitor, interval wipe .........

Engine control, Supercharger .............................................................. page 6

Engine shut-off ..................................................................................... page 7

Speed limitation .................................................................................... page 7

Head lights, position lights, marker lights, DRL, spotlights ................. page 8

Front fog lights ..................................................................................... page 9

page 6

Brake lights ........................................................................................... page 9

Direction indicators, hazard warning lights .......................................... page 9

Reversing lights, reversing warning ..................................................... page 10

Loading light, fifth wheel light ............................................................... page 10

Rear fog lights ...................................................................................... page 10

Rotating warning light ........................................................................... page 11

Interior lights ......................................................................................... page 11

Cigarette lighter .................................................................................... page 11

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

page 11

2

Group 37 Wiring Diagram FL6 LHD Component wiring diagram index

Windscreen wipers and washers, headlamp wipers and washers .... page 12

Climate unit ........................................................................................ page 12

Cab heater, PH-CAB ..........................................................................

Cab and engine heater, PH-ENGCA .................................................

page 13

page 14

Electrically heated seat ...................................................................... page 15

Electrically heated mirror .................................................................... page 15

Electrically operated mirror ................................................................ page 15

Air dryer .............................................................................................. page 15

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

page 16

City filter ............................................................................................. page 16

Radio, voltage divider, loudspeaker ................................................... page 17

Electrically operated window winder .................................................. page 17

Electrically operated passenger door lock .........................................

page 18

Power take-off .................................................................................... page 18

Power take-off, clutch-independent .................................................... page 19

Automatic transmission, SKMT 113, SKMT 137 ............................... page 19

Diff. lock .............................................................................................. page 20

3

Group 37 Wiring Diagram FL6 LHD Component wiring diagram index

Automatic transmission ......................................................................

Split .....................................................................................................

Bogie lift hydralic ................................................................................

page 20

page 20

page 21

Air suspension .................................................................................... page 21

Instrument unit .................................................................................... page 22

Indicator lamps ................................................................................... page 23

Tachograph, speedometer ................................................................. page 24

Anti-lock brakes (ABS) 4-channel ...................................................... page 25

Anti-lock brakes (ABS) 2-channel ...................................................... page 26

Retarder (electro-magnetic) ............................................................... page 27

Headlight level control ........................................................................ page 28

Extra fuses ......................................................................................... page 28

Spare relay ......................................................................................... page 29

Extra connection ................................................................................. page 29

Earth connections ............................................................................... page 30

ADR-FRA ............................................................................................ page 31

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Group 37 Wiring Diagram FL6 LHD Component wiring diagrams

Component wiring diagrams

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