C1046 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1046 – Left Front Wheel Pressure Phase Monitoring


C1046 Possible Symptoms


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


C1046 Possible Causes


Dirty Left Front Tone Wheel,Dirty Left Front Wheel Speed Sensor (WSS),Faulty Left Front Wheel Speed Sensor (WSS),Left Front Wheel Speed Sensor (WSS) harness is open or shorted,Left Front Wheel Speed Sensor (WSS) circuit poor electrical connection,Damage Left Front Tone Wheel,Faulty Anti-Lock Brake System (ABS) Module


C1046 Description


The Anti-Lock Brake System (ABS) Module monitors the Left Front Wheel Pressure Phase. The ABS Module sets the OBDII if the ABS Module detects a pressure reduction phase and the following pressure hold phase is too long.