C1114 Trailer Brake Control Solenoids Control Circuit Malfunction

OBD2 Code: C1114

Description: Trailer brake control solenoids control circuit malfunction.

Definition: This code indicates a problem with the electrical circuit that controls the trailer brake solenoids. The issue could be due to a wiring fault, a defective solenoid, or a problem with the control module responsible for managing the trailer brakes.

C1114 – Trailer Brake Control Solenoids Control Circuit Malfunction

Severity: Moderate

Common Causes

C1114 – Trailer Brake Control Solenoids Control Circuit Malfunction

Common Causes:

• Faulty trailer brake control solenoid
• Corroded or damaged wiring in the trailer brake control circuit
• Poor electrical connection in the trailer brake system
• Defective trailer brake controller module

 

Common Misdiagnosis

OBD2 Code: C1114

Description: Trailer Brake Control Solenoids Control Circuit Malfunction

Common Misdiagnosis: Faulty trailer brake control module is often misdiagnosed as a wiring issue or a problem with the trailer’s braking system itself.

 

Common Diagnostic Steps

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OBD2 Code: C1114

Description: Trailer Brake Control Solenoids Control Circuit Malfunction

• Check the trailer brake control module for any visible damage or corrosion.
• Inspect the wiring and connectors related to the trailer brake control solenoids for signs of wear, damage, or disconnection.
• Test the voltage and ground signals at the trailer brake control solenoid connector using a multimeter.
• Verify that the trailer brake control fuse is intact and functioning properly.
• Use a scan tool to check for any additional trouble codes that may indicate related issues.
• If equipped, test the operation of the manual override switch on the trailer brake controller.
• If all checks are normal, consider replacing the trailer brake control module as a last resort after verifying all other components are functioning correctly.