In addition to their control functions, the modules have on-board diagnostic capabilities. All have the capability to communicate over the J1587 normal speed data lines primarily for programming, diagnostics and data reporting. The Instrument Cluster Module (ICM) primarily displays operational parameters and communicates these to the other ECU’s. The Vehicle Electronic Control Unit (VECU) controls cruise control functions, accessory relay controls and idle shutdown functions. The Engine Management System (EMS) Module controls fuel timing and delivery, fan operation, engine protection functions, engine brake operation, the EGR valve, and the turbocharger nozzle. Together, these modules operate and communicate through the J1939 high speed serial data line to control a variety of engine and vehicle cab functions. The Gear Selector Electronic Control Unit (GSECU). Contact your local dealer for more information or visit “System Overviewįive electronic control modules are used the Engine Management System (EMS) Module, Instrument Cluster Module (ICM), Vehicle Electronic Control Unit (VECU), Transmission Electronic Control Unit (TECU) and The “Premium Tech Tool” (PTT) is the preferred tool for performing diagnostic work. MID 128 SID 27 Variable Geometry Turbocharger. MID 128 SID 21 Engine Position Timing Sensor. MID 128 SID 18 Drain Valve, Water Separator. MID 128 PSID 109 Engine Coolant Temperature Sensor. MID 128 PSID 108 Aftertreatment Injection System. MID 128 PSID 47 Particulate Trap Regeneration. MID 128 PPID 437 Aftertreatment Injector Fuel Pressure Sensor. MID 128 PPID 436 Exhaust Gas Temperature Sensor 3. MID 128 PPID 387 Temperature Sensor, Catalytic Converter. MID 128 PPID 329 Aftertreatment Fuel Injector. MID 128 PPID 328 Aftertreatment Injection Shutoff Valve. MID 128 PPID 272 Air Pressure Compensation. MID 128 PPID 122 Engine Compression Brake. MID 128 PPID 89 Variable Geometry Turbocharger Smart RemoteĪctuator Temperature. MID 128 PID 411 EGR Exhaust Back Pressure. MID 128 PID 105 Intake Manifold Temperature. MID 128 PID 102 Intake Manifold Pressure. MID 128 PID 91 Accelerator Pedal Position. 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. © 2008 Volvo Truck North America a division of Volvo Group North America, Inc., Greensboro, NC USAĪll rights reserved. Repl: This Service Manual replaces Manual 28 "Fault Code Guide 2007 Emissions" (7.2007) Publication no. Volvo Truck North America a division of Volvo Group North Warning: Indicates an unsafe practice where personal injury or severe damage to the product could occur.ĭanger: Indicates an unsafe practice where serious personal injury or death could occur. Note: Indicates a procedure, practice, or condition that must be followed in order to have the vehicle or component function in the manner intended.Ĭaution: Indicates an unsafe practice where damage to the product could occur. The following levels of observations, cautions and warnings are used in this Service Documentation: 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. Service procedures which do not include an operation number in the title are for general information and no reference is made to an V.S.T.Įach section of this manual contains specific safety information and warnings which must be reviewed before performing any procedure. In service procedures where the title incorporates an operation number, this is a reference to an V.S.T. The new edition of this manual will update the changes. When this is believed to have a significant bearing on this manual, supplementary service bulletins will be issued to cover the changes. Vehicles and components produced after the above date may therefore have different specifications and repair methods. The products are under continuous development. The descriptions and service procedures contained in this manual are based on designs and methods studies carried out up to October 2008.
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