Replacing Control Unit For Active Drivetrain Mounts

NOTIFICATION 

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 
  • → 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.

Information 

The PIWIS Tester  instructions take precedence since the description may be different with later Tester releases.

The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester. 

1. Connect the Tester to the vehicle and start it. Switch on the ignition.
2. Place original remote control (hand-held transmitter) in emergency start tray.

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.

   Emergency start tray

3. Select the vehicle type if necessary.
4. Select the Drivetrain mount  control unit in the overview.  Next F12 to start. The message "Create Vehicle Analysis Log (VAL)?" appears. Press F11 to continue.
5. Select Coding/programming. 
6. Select Automatic coding.  Press F12 to continue.
   1. 6.1  The Tester displays the message: Coding was completed successfully.
7. Go back to the overview. Press F12 to continue.
8. Read out all fault memories  and erase them if necessary.
9. Exit the diagnostic application. Switch off ignition. Disconnect the Tester from the vehicle.