Steering Angle Sensor: Service and Repair

Removing and installing steering-angle sensor
General information
The steering-angle sensor is integrated into the -> see figure steering column switch.





The steering angle is recorded in the contact unit for airbags (spiral spring) -C-. The sensed data is sent from the electronic unit -E- via the drive CAN bus to various systems (e.g., PSM, corner-sensitive headlight) for further processing. Replacement of the steering angle sensor requires the steering column switch to be removed.

If faults have been diagnosed on the steering-angle sensor, the steering column switch must be disassembled into the components -A, B, C, D, E-.

It is only permissible to replace the steering-angle sensor as the combination of the components contact unit for airbag -C- (spiral spring) and electronic unit -E-.





Replacing the steering-angle sensor





1. In order to replace the steering angle sensor, the components contact unit for airbag -C- and the electronic unit -E- must be replaced ->945019 Removing and installing steering column switch' (Removing and installing steering column switch includes disassembling and assembling).
2. Once installed, the steering angle sensor must be calibrated with the Porsche System Tester PSM - 456015 Initializing and calibrating steering-angle sensor'.