Removing and Installing Rate-of-Turn Sensor

Removing and installing rate-of-turn sensor
Two versions of the rate-of-turn sensor have been installed for the PSM (Porsche Stability Management) system in the 911 Turbo (996) since series introduction of this vehicle. The first version -A- with part number 996.606.147.00 and the new/current version -B- with part number 996.606.145.00.





Note:
^ The transverse acceleration sensor is integrated in the rate-of-turn sensor.





^ First version of the rate-of-turn sensor with pail number 996.606.147.00 will no longer be available after existing supplies are used up.





^ The new/current rate-of-turn sensor 996.606.145.00 (introduction shortly before the end of model year 2000) can be retrofitted instead of the first version 996.606.147.00. In case of first-time installation, various parts must be replaced in the surrounding area and some parts are omitted. The conversion to the new/current version is described in Anti-Lock Brake System, in the chapter "Conversion of rate-of-turn sensor".

Removal

Caution:
^ The rate-of-turn sensor is a micro-mechanical component and is very sensitive to impacts!

Note:
^ Perform removal and installation with the ignition switched off!

1. Move the front seats into the rear seat position.





2. Remove side-panel lining in front of the center console on the left -A- and right.





3. Remove fastening nuts of the rate-of-turn sensor on the right -arrow- and left.
4. Pull out the rate-of-turn sensor and unlock and pull off the plug with the ignition switched off.

Note:
^ Pull at the plug housing only! Never pull the electrical connections!

Installation
1. Install in reverse order.





2. After installing the rate-of-turn sensor, read out the PSM fault memory with the Porsche System Tester 2 and erase. Carry out a static test. Then start the engine. The PSM-related lights in the instrument cluster must go out when the engine is running. Read out the PSM fault memory again. There must not be any stored faults.