The TBCM detects a short to ground, open or a short to voltage on the relay feedback circuit.
Action Taken When the DTC Sets
- The trailer brake control will be disabled for the remainder of the ignition cycle.
- The driver information center will display Service Trailer Brake System.
Condition for Clearing the DTC
- The condition for the DTC is no longer present.
- The TBCM clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.
Reference Information
Schematic Reference
Trailer Brake Control Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Trailer Brake Controls Description and Operation
Electrical Information Reference
- «Circuit Testing»(ref-317172-S12100958872009060900000)
- «Connector Repairs»(ref-317172-S41839496312009060900000)
- «Testing for Intermittent Conditions and Poor Connections»(ref-317172-S08096213032009060900000)
- «Wiring Repairs»(ref-317172-S40815672902009060900000)
Scan Tool Reference
Control Module References for scan tool information