DTC C0504-62: Left Front Wheel Speed Sensor Intermittent/Erratic - Signal compare failure: Action

NOTE:

This DTC is set when the anti-lock brake system control module detects a difference in the expected wheel speed when compared to the other wheels
To validate the repair a drive cycle may be needed to release the system, (road test the vehicle from stationary to 30km/h (19 mph) and hold for 7 seconds)

Check that the wheels and tires comply with the manufacturer's specification for the vehicle
Refer to the electrical circuit diagrams and check the front left wheel speed sensor power circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the circuit as required
Refer to the electrical circuit diagrams and check the front left wheel speed sensor signal circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the circuit as required
Check the front left wheel speed sensor magnetic reluctor ring for damage, repair as required
Check the integrity and positioning of the front left wheel speed sensor mounting and rectify as required