Wheel speed sensor test


This function is used to confirm that the ECU can read the signals from the speed sensors and to exclude faults such as: Demagnetized ABS-ring gears, too big gap between sensor ring gear and wheel sensor, damaged hub, incorrectly installed/connected sensors.

Note:

The function is used after work on:

Test conditions:

Procedure:

  1. Start the function.

  2. Select the wheel to be tested.

  3. Press "Start".

  4. Rotate the wheel exactly one revolution. Make a mark on the wheel and the body, for example.

  5. Press "Stop".

  6. The result is shown. Should be approx. 60 pins +/-1.

  7. Repeat the procedure from step 2 to test the other wheels.

  8. The function is done.

    • If the function fails, check the test conditions and repair any faults.