Volvo Truck Service Manual (EN)

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Service Manual Trucks Group 37 Release 01 Wiring diagram FM, FH, NH12 VERSION2 FM, FH CHID A615020– FM, FH CHID B421649– 20 046394

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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 December 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 unsafe practice where serious personal injury or death could occur.

Volvo Truck Corporation Gцteborg, Sweden Order number: 20046394 © 05 Volvo Truck Corporation, Gцteborg, 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. ENG19476

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Contents Example of wiring diagram ................................................................... 2 Component wiring diagram index ........................................................ 5 Component wiring diagrams ................................................................ 8 Illustrations index ................................................................................ 98 Illustrations ........................................................................................... 99 Fuses ...................................................................................................

185 Relays ................................................................................................. 187 Wiring harness illustration index ..................................................... 189 Ground connections .......................................................................... 192 List of ground connections ................................................................. 194 List of connectors .............................................................................. 195 List of components ............................................................................

204 Abbreviations ..................................................................................... 210 Cable colour code .............................................................................. 212 Feedback 1

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Example of wiring diagram

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. 2

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