Control Module: Service and Repair
Removing and installing the Tiptronic control unit
Removing the Tiptronic control unit
Note:
^ The control unit is located under the right front seat.
^ The ignition key must be removed before starting the assembly work.
^ If the Tiptronic control unit is replaced, observe the points under coding the control unit.
^ Move right front seat all the way forward and up.
^ If present, remove control unit for telephone module.
^ Remove control unit for transfer box.
1. Unscrew the three fastening nuts (when present) from the telephone module control unit and remove the holder.
2. Pull out the control unit from the bottom compartment.
3. Open plug connection -A- and remove plug from control unit -B- .
Installing the Tiptronic control unit
1. Position electrical plug connection on control unit -B- and lock plug -A-.
2. Push control unit into the bottom compartment. Ensure that the control unit is seated securely and correctly.
Note:
^ If possible, slide in the control unit horizontally. This can result in collisions with the wiring harness routed underneath. The holder where the control unit is pushed in can be lifted up. Moving the control unit up and down will allow it be gradually inserted.
^ If the Tiptronic control unit is replaced, observe the points under coding the control unit.
^ Install control unit for transfer case.
3. If present, position the holder for the telephone module control unit and screw down using the three fastening nuts.
^ If present, install control unit for telephone module.
Coding the Tiptronic control unit
Note:
^ The adaptation values must be reset using the Porsche System Tester when the transmission is renewed/replaced.
^ If a new control unit is installed, the control unit must adapt first. Poor shifting can be expected therefore in the adaptation phase.
^ After the test drive, let the engine run for 10 minutes at idle speed. This ensures that all adaptation values are stored in the control module.
^ The instructions of the Porsche System Tester have highest priority.
^ The procedure listed has been structured generally, changes or additions can be made. This is based on Tester Software 16.0.
^ The Porsche System Tester instructions take precedence and in the event of a discrepancy these are the instructions that must be followed. Deviations may occur with later software versions.
^ During coding, it is essential to guarantee the power supply for the Porsche System Tester. It is essential to connect a battery charger with a current rating of at least 40 A to the vehicle battery.
^ Symbol for the TAB key = ->.
1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch ignition on Press -> to continue.
2. Select vehicle type using the cursor keys.
3. Using the -> key, move from the vehicle type to the list of control units. Perform the automatic control unit search.
4. Select Tiptronic with the cursor keys and press the -> key.
5. Select Control unit replacement with the cursor keys and press the -> key.
6. Select Read out data (codes) with the cursor keys and press the -> key.
7. The message Coding read-out complete will appear on the screen of the Porsche System Tester. Press the -> key.
8. Switch off ignition and replace Tiptronic control unit.
9. After replacement of the control unit, the vehicle data is installed under the menu Write in data. Press the -> key.
10. System Tester displays Coding write-in complete. Press the -> key.
11. Quit menu, switch off ignition, lock vehicle and read out fault memory once more.
Note:
^ If the data could not be read out with the Porsche System Tester, the versions listed must be coded using the menu item Codings.