Engine-Codes - Generic - C1112

C1112 Code - Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction

- Code Popularity: 30,300 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C1112?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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
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How to Fix the DTC C1112?

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 connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the C1112 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the C1112 Code Mean?

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 short to ground, open or a short to voltage on the trailer brake control signal circuit.

C1112 Code - Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction

Need more Information on the Code?

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Code C1112 Information for Specific Makes

  • C1112 Buick Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction
  • C1112 Cadillac Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction
  • C1112 Chevrolet Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction
  • C1112 GMC Trailer Brake Signal to Trailer Brake Power Control Module Circuit Malfunction
  • C1112 Hyundai Sensor Source Voltage
  • C1112 KIA Sensor Source Voltage

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