Navistar INTERNATIONAL DT 466 User Manual

7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS 279
Table of Contents
Description..............................................................................................................283
Section Information..........................................................................................283
Electronic Control System Diagnostics Form....................................................................284
EGED-285 Diagnostic Form Example.....................................................................284
Sensor and Actuator Locations.....................................................................................285
Engine Mounted Components... ..... . . ...................................................................285
Vehicle Mounted Components........ . ........ ......... . . ....... . . ........ . ......... ........ . . ....... . . ...288
Diagnostic Procedures for Sensors and Actuators..............................................................288
Pin Grip Inspection...........................................................................................288
Operational Diagnostics....................................................................................289
V
REF
Tests using MasterDiagnostics®...........................................................289
Temperature Sensor Tests using MasterDiagnostics®.... . ... ... . ..........................289
Pin-Point Diagnostics........................................................................................290
Connector Voltage Checks to Ground..........................................................290
Connector Resistance Checks to ECM Chassis Ground....................................290
Connector Resistance Checks to Chassis Ground. .......... . . ......... . . ......... ......... .291
Harness Resistance Checks......................................................................292
Operational Voltage Checks......................................................................292
Circuit Diagnostics.. . ....... . ........ ........ ........ . . ...... . . ....... . ........ ........ ........ . . ...... . . ........ .....293
AMS (Air Management System)............................................................................293
AMS Operation......................................................................................294
APS/IVS (Acce lerator Positio n Sensor and Idle Validati
on Switch).................................300
APS/IVS Circuit Operation.........................................................................301
APS/IVS Operational Diagnostics................................................................304
APS/IVS Pin-Point Diagnostics...................................................................306
ATA Datalink (American Trucking Association).........................................................309
ATA Circuit Operation..............................................................................310
ATA Pin-Point Diagnostics... . . ...... . ....... ....... ....... ....... . ...... . ...... . . ..... . . ..... . . ..312
BAP Sensor (Barometric Absolute Pressure)...........................................................314
BAP Circuit Operation.............................................................................315
BAP Pin-Point Diagnostics........................................................................316
BCP Sensor (Brake Control Pressure)....................................................................318
BCP Circuit Operation.............................................................................320
BCP Operational Diagnostics.....................................................................322
BCP Pin-Point Diagnostics (ECM to Valve Cover Gasket Conn
ector).....................328
BCP Pin-Point Diagnostics (ECM to BCP Sensor– valve cover
removed)................333
Brake Shut-off Valve.........................................................................................334
Brake Shut-off Valve Circuit Operation.........................................................336
Brake Shut-off Valve Pin-Point Diagnostics (ECM to valv
e cover gasket connector)...338
Brake Shut-off Valve Pin-Point Diagnostics (ECM to brak
e valve – valve cover
removed).........................................................................................344
Brake Switch Circuit.........................................................................................347
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.

Navistar INTERNATIONAL DT 466 Specifications

General

Brand	Navistar
Model	INTERNATIONAL DT 466
Category	Engine
Language	English