WM 453055 Replacing Hydraulic Unit/Control Unit (Except PANAMERA GTS, PANAMERA Turbo S): Information
NOTE:
Replacing the hydraulic unit/control unit
- The hydraulic unit forms a single unit with the control unit.
- The hydraulic unit and control unit are always replaced together.
- When replacing the hydraulic unit/control unit, the new assembly must be to hand before the old one is removed.
- The data as well as the coding of the old control unit must be transferred to the new unit before the old one is removed.
- The hydraulic unit/control unit must be calibrated (calibration of hydraulic unit/control unit with combination sensor). Without calibrating, the PSM will have incorrect values or no values.
→ Procedure
→ The Porsche System Tester must not be disconnected from the diagnostic socket when replacing the hydraulic unit.
→ Read out data from old hydraulic unit/control unit. Switch off the ignition. Pull off connector for hydraulic unit and connect connector to the new hydraulic unit. Switch on ignition. Transfer data.