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C111B CADILLAC

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

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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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

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

Possible symptoms

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

C111b Cadillac 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 Cadillac - Trailer Brake Power Control Module System Voltage Voltage Below Threshold - AutoCodes.com

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C111B CADILLAC Comments

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