This function is used to initialise the steering angle sensor. This shall be done if:
The ABS control unit has been replaced.
the steering angle sensor has been replaced.
Error code that requires initiation of steering angle sensor is stored in the ABS control unit.
Note:
The ignition must not be turned off during the basic setting.
In vehicles with electromechanical power steering a basic setting of the power steering must be performed after initiating the steering angle sensor. Performed as follows from point 7.
Test conditions:
Battery voltage above 12V.
ABS control unit correctly coded.
Access to a stretch of road that meets requirements in item 2 and 9.
Procedure:
Check that the steering wheel is in correct position when the front wheels stand straight.
Drive the car straight ahead on level ground at max. 20 km/h to check that the car does not veer when the steering wheel is held in position for driving straight ahead.
Stop the car and turn the steering wheel almost to lock both to the right and left.
Set the steering wheel in position for travel straight ahead.
Select the function: "Steering wheel angle sensor initialisation".
The function starts, a dialogue shows: ”Adaptation in order”, - confirms that initiation is performed.
If the text "Adaptation not possible" is shown, check that the steering angle sensor is installed correctly and that the steering wheel is in the middle position.
Complete the function and disconnect the diagnostic tool.
The control light for steering servo is on.
Test-drive a short distance (10-20 metres) straight ahead to learn the middle position.
Let the engine run at idle, set the steering wheel in middle position (front wheels straight ahead) for at least 2 seconds without touching the steering wheel.
Turn the steering wheel to left full lock and hold it there until you hear 3 beeps.
Turn the steering wheel to right full lock and hold it there until you hear 3 beeps.
Turn back the steering wheel to middle position (front wheels straight ahead). The control light for electromechanical steering turns off.
Check that no error codes are stored in the ABS control unit or in the control unit for electromechanical power steering.