Camiones

D

Service Manual Trucks
28 MID 128 Fault Code Guide 2007 Emissions VN, VHD VERSION2, VT
Group

PV776-20184635

Foreword

D

The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to October 2008. The products are under continuous development. Vehicles and components produced after the above date may therefore havedifferent specifications and repair methods. When this is believed 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 an V.S.T. (Volvo Standard Times). Service procedures which do notinclude an operation number in the title are for general information and no reference is made to an V.S.T. Each section of this manual contains specific safety information and warnings which must be reviewed before performing any procedure. If a printed copy of a procedure is made, be sure to also make a printed copy of the safety information and warnings that relate to that procedure. Thefollowing 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 theproduct could occur. Danger: Indicates an unsafe practice where serious personal injury or death could occur.

Volvo Truck North America a division of Volvo Group North America, Inc.
Greensboro, NC USA

Order number: PV776-20184635 Repl: This Service Manual replaces Manual 28 "Fault Code Guide 2007 Emissions" (7.2007) Publication no. PV776–20113992.

© 2008 Volvo Truck North America adivision of Volvo Group North America, Inc., Greensboro, NC USA

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 North America a division of Volvo Group North America, Inc.
USA32772.ihvalContents

GROUP 28 ............................................................................................ 3 Design and Function ........................................................................... 3 Engine Control System ........................................................................ 3 Troubleshooting................................................................................... Engine ECU, Fault Tracing ................................................................... MID 128 PID 26 Fan Speed Percent .................................................... MID 128 PID 45 Preheater Relay ........................................................ MID 128 PID 81 Particulate Filter ........................................................ MID 128 PID 84 Vehicle Speed........................................................... MID 128 PID 85 Cruise Control Status ................................................ MID 128 PID 91 Accelerator Pedal Position ........................................ MID 128 PID 94 Fuel Delivery Pressure .............................................. MID 128 PID 97 Water in Fuel Indicator ..............................................MID 128 PID 98 Engine Oil Level ........................................................ MID 128 PID 100 Engine Oil Pressure ................................................ MID 128 PID 102 Intake Manifold Pressure ......................................... MID 128 PID 103 Turbo Speed ............................................................ MID 128 PID 105 Intake Manifold Temperature...