C111B GMC - Trailer Brake Power Control Module System Voltage Voltage Below Threshold

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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C111B GMC Possible Causes

  • Faulty Trailer Brake Power Control Module
  • Trailer Brake Power Control Module harness is open or shorted
  • Trailer Brake Power Control Module circuit poor electrical connection

First diagnose C111B GMC code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

C111B GMC Tech Notes

- C111B:03 Trailer Brake Power Control Module System Voltage - Voltage Below Threshold
- C111B:07 Trailer Brake Power Control Module System Voltage - Voltage Above Threshold
- C111B:5A Trailer Brake Power Control Module System Voltage - Plausibility Failure

Cost of diagnosing the C111B GMC code

    Labor: 1.0

    The cost of diagnosing the C111B GMC code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

C111B GMC Possible Symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C111b Gmc Description

The chassis control module receives inputs from the trailer brake power control module; these inputs are used to determine trailer connection and the amount of voltage supplied to the trailer brakes. The trailer brake power control module detects a voltage below a calibrated threshold on the battery positive voltage circuit.
OBDII Code C111b Gmc - Trailer Brake Power Control Module System Voltage Voltage Below Threshold - AutoCodes.com

C111B GMC More Information

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