C14A6 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C14A6 – Output Circuit Negative Voltage

 

C14A6 Possible Symptoms

 

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

 

C14A6 Possible Causes

 

Faulty Trailer Brake Control ECU (Brake Control with Bracket Relay),Trailer Brake Control ECU (Brake Control with Bracket Relay) harness is open or shorted,Trailer Brake Control ECU (Brake Control with Bracket Relay) circuit poor electrical connection

 

C14A6 Description

 

The Trailer Brake Control ECU (Brake Control with Bracket Relay) is connected via the trailer socket and direct line. The Trailer Brake Control ECU (Brake Control with Bracket Relay) outputs a signal to the trailer socket. Trailer Brake Control ECU (Brake Control with Bracket Relay) sets the OBDII code when the voltage is continuously inputted to trailer brake control ECU (brake control with bracket relay) output circuit for 2 seconds or more.