7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS 349
The ECM and ESC use the Drivetrain Datalink to
provide the instrument panel with status information
on the following features.
• Cruise control ON/OFF
• Cruise control Set / C ruis e
• Cruise control resume / accelerate
• Driveline Disengagement Switch (DDS)
• Brake pedal
• AC demand
• Self-test in put
• Remote Accelerator Pedal (RPS)
• In-Cab PTO / Throttle switch
Fault Detection / Management
There are no engine DTCs for CAN 1
communications. See truck Electrical System
Troubleshooting Guide.
Tools
• EST with MasterDiagnostics® software
• EZ-Tech® interface cable
• Digital Multimeter (DMM)
CAN Pin-Point Diagnostics
Figure 405 CAN communication circuit diagram
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.
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