PSM diagnosis 911 Carrera (996) · Brake pressure sensor 7. Steering-angle sens

PSM diagnosis 911 Carrera (996) Brake pressure sensor 7. Steering-angle sensor Installationposition: on the PSM hydraulic unit Installationposition: on the steering column in front of the intermediate shaft The brake pressure sensor records the brake pressure (desired deceleration),which is used The steering-anglesensor suppliesinformation by the PSM control module to calculate the about the slip angle of the front wheels to the wheel brake forces (longitudinalforces). If PSM control module (intention of driver in driving dynamicscontrol is necessary during relation to direction of travel). In the PSM control the braking procedure, the existing wheel brake module this signal is used to calculate the forces are included to calculate the lateral required vehicle behaviourwith respect to its traction. transverse dynamics by means of the calculation of the vehicle speed. The sensor has its own Effectsin the case of failure: microcontroller. The information is transmitted to the PSM control module by means of a CAN Withoutvalues for the current brake pressure, data bus. the PSM control module cannot calculate the lateral traction correctly. The PSMfunction is Effects in the case of failure: switched off. Withoutthe informationfrom the steering-angle sensor, the PSM control module cannot produce a picture of the desired direction of travel. The 6. Stop light switch PSMfunction is switched off in this case. Installationposition: in front of the brake pedal Whenthe brake is actuated, signals from the twin contact (make and break) are detected and evaluatedby the control module. If the brake is actuated during an ASR control operation, this procedure is immediatelyinterrupted in order to initiate an ABS control operation. During an FDRcontrol operation, these signals are processed in addition to the brake pressure signal. 4_22_99 45 -D 196 ~,