Circuit/System Testing
- Ignition ON.
- Verify DTC C111A 54 or C1114 00 is not set.
- If DTC C111A 54 or C1114 00 is set
Refer to the diagnostic procedure for DTC C1114 00 to diagnose this concern.
- If DTC C111A 54 or C1114 00 is not set
- If DTC C111A 54 or C1114 00 is set
- Verify DTC C111A 43 is not set
- If DTC C111A 43 is set
Replace the K133 Trailer Brake Power Control Module
- If DTC C111A 43 is not set
- If DTC C111A 43 is set
- All OK