C146C Code: Meaning, Causes, and Symptoms | OBD2 Codes

C146C – Open In ABS Motor Relay Circuit


C146C Possible Symptoms


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


C146C Possible Causes


Faulty ABS Motor Relay,ABS Motor Relay harness is open or shorted,ABS Motor Relay circuit poor electrical connection,Faulty Skid Control ECU (Brake Actuator Assembly)


C146C Description


The ABS Motor Relay supplies power to the Pump Motor. While the ABS is activated, the Skid Control ECU turns the ABS Motor Relay on to operate the pump motor. If the voltage supplied to the ABS Motor Relay is too low due to low voltage from the battery or alternator, the Diagnostic Trouble Code (DTC) may be stored.