45PSM 5.7 · 45-1Introduction

45 911 Turbo (996) PSM 5.7 45PSM 5.7 45-1Introduction PSM 5.7 (Porsche Stability Management) 911 Turbo (996) model year 2001 General instructions/safety instructions The following points must be observed during vehicle diagnosis: ♦In the case of some faults in the PSM system, the Tiptronic transmission may switch to limp-home because it is lacking sev- eral important data. ♦In the case of a defective control unit, the entire hydraulic unit must be replaced. ♦In the case of a defective pressure sensor, the entire hydraulic unit must be replaced. ♦When replacing the hydraulic unit, the control unit must be coded and the steering-angle sensor must be calibrated. ♦The steering-angle sensor must be calibrated for all work on the running gear. ♦After troubleshooting or repairs, erase the fault memory with the Porsche System Tester ll No. 9588 and carry out a test drive. ♦After the test drive, read out the fault memory with the Porsche System Tester ll No. 9588 again. ! Danger of damage due to improper handling of batteries and control module plug connections! ♦Disconnect the battery connection terminals only when the engine is switched off! ♦Start the engine only when the battery connection termi- nals are properly connected! ♦Pull off or push on plug connections for the control units or other electronic components only when the ignition is switched off! ♦Disconnect the negative terminal of the battery before welding work on the vehicle! 4503 Introduction 45-1 page 1 Printed in Germany – 29, 2002 Ein_ps05