User's Manual

Fault Isolation Procedures
2-57
Component Code: 23
(SID 3, FMI 2)
Brake Input Error
Overview
This fault code indicates an electrical problem in the brake input.
The signal from the bake pedal, J-1939, or J-1587 data link, did not
match the current operating conditions.
Detection
Starting at key on and throughout the operation, the Bendix
™
VORAD
®
system Central Processing Unit constantly measures this
circuit. A failure mode of short to battery, short to ground, open
circuit, or bad data is detected.
Fallback
This fault causes a failure of the VORAD system.
Required Tools
• Basic Hand Tools
• Digital Volt/Ohm Meter
• Troubleshooting Guide
• PC-based or Hand-held Diagnostic Tool
Possible Causes
This fault code can be caused by any of the following:
• Central Processing Unit
• OEM Harness
• Engine ECU
Harness
Central
Processing Unit