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Home >> GMC >> 2016 >> Canyon SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 61 (Trailer Brake Control System) >> Diagnostic Information and Procedures >> DTC C111A: Trailer Brake Power Control Module >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different car, the 2017 GMC Canyon and 2017 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

The trailer brake power control module runs the program to detect an internal fault when power up is commanded. The only requirements are voltage and ground. This program runs even if the voltage is out of the valid operating range.

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