Calibrating steering-angle sensor
NOTE:
- The steering-angle sensor must be recalibrated on the measuring platform following repairs to or work on the chassis/steering or if the steering-angle sensor/steering column switch/hydraulic unit is replaced.
- In order to be able to calibrate the steering angle sensor correctly, the vehicle must be on the measuring platform, the wheel alignment values correct and the steering in the straight-ahead position.
- The security code is displayed in the PIWIS tester under Menu >> PSM >> Actual values.
The steering angle sensor must be calibrated using the menu with the Porsche System Tester under the specified test conditions:
1. Switch on ignition.
2. Running gear set according to Porsche specifications.
3. Wheels in straight-ahead position and steering wheel horizontal.
4. In the straight-ahead position, the steering wheel must deviate by no more than ± 2.0° from the horizontal position (steering center position).
5. After successful calibration, the stored fault code is erased from the fault memory. The PSM indicator light in the instrument cluster goes out.