Initialise steering angle sensor


This basic setting is used to initiate the steering angle sensor. This must be done if:

Note:

The basic setting can only be done after entering a login code. Use the function: Login. During the basic setting, the ignition must not be switched off.

After a initialization of the steering angle sensor, a basic setting must be done on vehicles with electromechanical steering assistance. Perform from step 8 and forward.

Test prerequisites:

Procedure:

  1. Check that the steering wheel is in the correct position when the front wheels are straight ahead.

  2. Drive the car straight ahead on a flat surface at not more than 20 km/h to check that the car does not pull to one side when the steering wheel is held in the straight ahead position.

  3. Stop the car and make sure that the front wheels and the steering wheel are aligned.

  4. Choose the function: "Login". Enter the login code: "40168", press "OK"

  5. Choose the function: "Initialization of the steering angle sensor".

  6. The function starts and the text: "Adaption correct" confirms that initialization has been done.

    • If the text "adaption not possible" appears, check if the steering angle sensor is correctly installed and the steering wheel is in the straight ahead position.

  7. Complete the function and disconnect the diagnostic tool.

  8. The ESP and steering servo test lamp comes on.

  9. Test drive a short trip straigth forward with 15 - 20km/h (the steering angle sensor learns the straight ahead position). The check lamp for stability program shall now turn off.

  10. Keep the engine on idle, turn the steering wheel to the straight ahead position (the front wheels straight forward) and keep this possition for at least 2 seconds.

  11. Turn carefully the steering wheel to the left end position and hold for a while. Turn carefully the steering wheel to the right end position and hold for a while. Turn back the steering wheel to the straight ahead position (the front wheels straight forward). The control lamp for the electromechanical steering assistance turns off.

  12. Check that no fault codes are stored in the ABS system or in the electromechanical steering assistance system.

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