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.