Checking Wheel Speed Sensor

Checking wheel speed sensor

Display group 002

The measured value block for display group 002 must be read when the vehicle is being driven slowly. ABS control module -J104- saves the first usable voltage signal from the wheel speed sensor and displays this value in the display group. The values are displayed on the VAG 1551 when the vehicle is being driven slowly.
- Press buttons -0-, -0- and -2- to input display group number 2 (002).
- Press -Q- button to confirm input.





There are always 4 display fields (arrows) in the display group. Descriptions of the individual values in display fields 1 - 4 can be found in the table.





Indicated on display vehicle stationary)
- Press -C- button for next display group number entry.

If the -> button is pressed, buttons -0- and -8- ("Read Measuring Value Block") must be pressed again to regain entry.





Air gap between wheel speed sensor and rotor may be too large.
- Check that wheel speed sensor is screwed correctly to wheel bearing housing.
Wheel speed sensor or rotor exterior damaged.
- Change damaged component.
For display group 002 remember:
Deviations of the displayed values in display fields 1 - 4 must never be greater than 6 km/h (4 mph).