Initialization After A Fault

If the Active Steering Control Module -J792- is not capable of reliably saving the signal from the motor position sensor when the ignition is switched off, due to a serious fault, a special initialization routine is started. This procedure requires the index sensor, which outputs a signal when the steering gear is in its center position. From the basic setting procedure (refer to "Servicing"), the BASIC SETTING  Active Steering Control Module -J792- knows the assignments of the measured data generated by the steering angle sender (=steering wheel position), the motor position sensor (position of eccentricity) and the index sensor (steering gear pinion position). The motor position sensor can now be re-initialized by the pulse generated by the index sensor and from the position of the steering angle sensor. The "normal" initialization routine synchronizes the steering wheel if it is at an angle.