![]() All have the capability to communicate over the SAE J1587 data link primarily for programming, diagnostics and data reporting. The ICM primarily displays operational parameters and communicates these to the other ECUs. The VECU controls cruise control functions, accessory relay controls and idle shutdown functions. The ECM controls such things as fuel timing and delivery, fan operation, engine protection functions, engine brake operation, the exhaust gas recirculation (EGR) valve and the turbocharger nozzle. Together, these modules operate and communicate through the SAE J1939 (CANġ) data link to control a variety of engine and vehicle cab functions. Six electronic control units (ECUs) are used the engine control module (ECM), instrument control module (ICM), Vehicle Electronic Control Unit (VECU), transmission control module (TCM), the gear selector control module (GSCM) and the aftertreatment control module (ACM). DTC(s) can no longer be cleared using the vehicles instrument cluster digital display and stalk switch control. Contact your local dealer for more information or visit “Note: The use of a scan tool is necessary to perform diagnostic work as well as clearing of any diagnostic trouble codes (DTCs). The manufacturer scan tool is the preferred tool for performing diagnostic work. 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 Mack Trucks, Inc. ©2012 Mack Trucks, Inc., Greensboro, NC USAĪll rights reserved. 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 deemed to have a significant bearing on this manual, an updated version of this manual 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 technical studies carried out through January 2012.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |