DTC C0504-31: Left Front Wheel Speed Sensor Intermittent/Erratic - No signal: Action

NOTE:

This DTC is set when the anti-lock brake system control module detects a Zero wheel speed, even when the vehicle is moving
If the failure is intermittent, it is possible that the signal will recover during the drive cycle and full system functionality will be restored
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 the integrity and positioning of the front left wheel speed sensor mounting and rectify as required
Using the Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s) and retest. If the fault persists, install a new front left wheel speed sensor