Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 GMC Sierra 3500 HD, 2016 GMC Sierra 2500 HD, 2016 GMC Sierra 1500, 2016 Chevrolet Silverado 3500 HD, and 2016 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- DTC C111A 43
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The trailer brake power control module has detected an internal malfunction.
- DTC C111A 54
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The trailer brake power control module has overheated due to an excessive current draw in the vehicle's trailer auxiliary supply voltage circuit or the customer's trailer.
For symptom byte information, refer to Symptom Byte List