Replacing PSM Control Unit
WARNING: This page is about a different variant/trim than selected.
NOTE:
Voltage drop
- Irreparable damage to control unit
- Damage to control unit
- Fault entries in the control unit
- Control unit programming/coding is aborted
- Malfunctions in the control unit, even during programming/coding
→ Switch off ignition before disconnecting the control unit.
→ Make sure that the power supply is not interrupted during programming/coding.
→ Connect the battery charger with at least > current 90 A to the vehicle battery.
- Connect the Tester to the vehicle and start it. Switch on ignition.
- Select the vehicle type if required.
- Select the control unit Brake electronics (PSM incl. parking brake) in the overview . Press F12 to continue. The message "Create Vehicle Analysis Log (VAL)?" appears. Press F11 to continue.
- Maintenance/repairs must now be selected.
- Select Parking brake commissioning
. Press F12 to continue.
- 5.1 Read and follow the instructions and information on the Tester.
- 5.2 Teach parking brake according to menu guidance.
- Read out the fault memory and erase it if necessary.
- Exit the diagnostic application. Switch off ignition. Disconnect the Tester from the vehicle.