Control Module: Service and Repair
WM 373019 Removing and installing Tiptronic control unitPreliminary work
Preliminary work for Tiptronic control module (also referred to generally as control unit below)- - erase
Open rear luggage compartment lid and lever out the clips for the carpet lining using the disassembly tool. Disassembly tool, universal NR.21
Rear luggage compartment trim panel
General warning notes
General warning notes for control units
Warning: Sudden voltage interruption of the power supply to the control module.
^ Destruction of the control module.
--> During programming, 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.
--> Prior to disconnecting the control module, switch off the ignition and remove the ignition key.
Tools and materials
Tools
Removal tool, universal NR.21
Removing Tiptronic control unit
Removing Tiptronic control module (also referred to generally as control unit below)
Warning: Sudden voltage interruption of the power supply to the control module.
^ Destruction of the control module.
--> During programming, 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.
--> Prior to disconnecting the control module, switch off the ignition and remove the ignition key.
Installation location
1. Fold over the carpet lining and unscrew the three fastening nuts for the Tiptronic control module.
Unscrew fastening nuts
2. Remove control unit then release and pull off the electric connector -Arrow-.
Releasing electric connector
3. Take out the control unit.
Installing Tiptronic control unit
Installing Tiptronic control unit (also referred to generally as control unit below)
1. Connect the connector to the control unit and insert the closing clip until it engages.
Connecting electric plug
2. Position control unit and secure with the fastening nuts. --> Tightening torque: 7.5 ftlb.
Screw down control unit with fastening nuts.
3. Fold back the carpet lining into position and fasten with the clips.
Subsequent work
Subsequent work for Tiptronic control unit
Fold back the carpet lining and fasten with the clips.
If a new or different Tiptronic control unit has been installed then code it using the PIWIS Tester 9718.
Programming Tiptronic control unit
Reading out from and writing in to the Tiptronic control unit (also referred to generally as control unit below)
Warning: Sudden voltage interruption of the power supply to the control module.
^ Destruction of the control module.
--> During programming, 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.
--> Prior to disconnecting the control module, switch off the ignition and remove the ignition key.
Information: The PIWIS Tester 9718 instructions take precedence since the description may be different. This may be due to more recent software versions.
The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester 9718.
1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on ignition. >> Continue.
2. Select vehicle type using the cursor keys.
3. Switch from the vehicle type to the list of control units.
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 values (codings) with the cursor keys and press >>.
7. The message Codes successfully read out appears on the screen of the Porsche System Tester. Press >>.
8. Switch off ignition and replace control module.
9. Switch on ignition. Switch to the Special functions menu and perform the vehicle handover using the F8 key.
10. In the Special functions menu, erase All fault memories by pressing >>.
In the menu Write in data >> the data read-out are installed.
11. System Tester displays Coding write-in complete >>.
12. If the control module has been installed in another vehicle it will be necessary, as of tester software 8.0, to
Reset adaption values:
12.1. In the menu Tiptronic, select the menu Reset adaption values and continue with >>.
12.2. Confirm with F7 for Yes, F8 for No and continue with >>.
12.3. Follow the instructions on the tester.
13. Exit the menu, carry out a test drive and afterwards read out the fault memory.
Coding Tiptronic control unit
Coding Tiptronic control unit
Information: The procedure described must be applied when a control unit has to be replaced and the tester function Control unit replacement cannot be used.
Information: - When the transmission is renewed/replaced, the adaptation values must be reset using the PIWIS tester 9718. It is expected that this function will not be implemented until tester software V8.0 is available:
^ Resetting adaptation values:
^ In the Tiptronic control module, select menu item Reset adaptation values and continue with >>.
^ Confirm with F7 for Yes, F8 for No and continue with >>.
^ Follow the instructions on the Tester.
^ If a new control unit is installed, it must adapt first. Poor shifting quality can therefore be expected 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 unit.
^ The instructions of the Porsche System Tester have highest priority.
^ The procedure listed has been structured generally; changes or additions may occur.
Warning: Sudden voltage interruption of the power supply to the control module.
^ Destruction of the control module.
--> During programming, 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.
--> Prior to disconnecting the control module, switch off the ignition and remove the ignition key.
1. Connect the PIWIS tester 9718 to the vehicle and start it. Switch on the ignition. >> Continue.
2. Select the vehicle type.
3. Switch to the Special functions menu and perform the vehicle handover using the F8 key.
4. In the Special functions menu, erase All fault memories by pressing >>.
5. Carry out automatic search of control units.
6. Select Tiptronic with the cursor keys and press the >> key.
7. Select Coding with the cursor keys and press the >> key.
8. Select Vehicle version and code with the F8 key.
9. Tester confirms: "Coding has been changed".
10. If the control module has been installed in another vehicle it will be necessary, as of tester software 8.0, to Reset adaption values:
10.1. In the menu Tiptronic, select the menu Reset adaption values and continue with >>.
10.2. Confirm with F7 for Yes, F8 for No and continue with >>.
10.3. Follow the instructions on the tester.
11. Quit menu, perform test drive and check fault memory with the system tester.