Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC Descriptors
- DTC C111B 03
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Trailer Brake Power Control Module System Voltage - Voltage Below Threshold
- DTC C111B 07
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Trailer Brake Power Control Module System Voltage - Voltage Above Threshold
- DTC C111B 5A
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Trailer Brake Power Control Module System Voltage - Plausibility Failure
- DTC C1595 00
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Trailer Brake Signal to Trailer Brake Power Control Module Circuit - Malfunction
- DTC C1596 01
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Trailer Brake Power Control Module Enable Circuit - Short to Battery
- DTC C1596 02
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Trailer Brake Power Control Module Enable Circuit - Short to Ground
- DTC C1114 00
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Trailer Brake Control Solenoids Control Circuit - Malfunction
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.