ABS Without TCS or ESP

C1371 Wheel Sensor Front Left. Signal Incorrect





Fault symptoms
ABS warning lamp on. ABS not functioning.

Conditions
^ Speed signal absent for more than 10 ms when road speed above 40 km/h.
^ Speed signal faulty when road speed above 12 km/h.

Diagnostic help
^ FL wheel speed sensor signal can be read using diagnostic tool.
- Select "Read values".
- Select "Wheel Speed Front Left".

The current wheel speed in km/h is displayed.
^ With the front of the car raised off the ground, the diagnostic tool should show a reading of about 5 km/h when the FL wheel is rotated by hand at a speed of about one turn a second.