Removing and Installing Tiptronic Control Unit
Removing and installing Tiptronic control unit
Preliminary work for Tiptronic control module (also referred to generally as control unit below)
Remove right front seat.
Remove rear side trim panel on the right.
Remove right scuff plate.
General warning notes for control units
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.
Information
Installation position
The control unit is located in the passenger compartment on the right at the B-pillar in front of the rear seat well.
The ignition key must be removed before starting the assembly work.
If the Tiptronic control module is replaced, observe the points under programming/coding the control unit.
1. Unscrew lower fastening screw for the seat belt.
2. Disengage floor covering at the support and lay it in the vehicle interior.
3. Unlock locating peg -1- of the support using the commercially available removal tool Disassembly tool, universal NR.21.
Unlocking locating peg using the removal tool
4. Unscrew fastening screws -2- and nuts -3- and carefully pull the support up and out of the retaining points.
Unscrewing fastening screws
5. Unlock and disconnect the electrical plug connection.
Releasing electrical plug connection
6. Disengage retaining clip -4-.
Disengaging retaining clip
7. Pull control unit out of the support and pull it down and out at an angle.
8. Press locking tabs -A- and disconnect plug connections from the control unit.
Releasing electrical connector
Installing 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.
1. Switch ignition off and remove ignition key.
2. Connect the electric plug connection.
Connecting electrical plug connection
3. Insert control unit into the support and engage retaining clip.
Inserting control unit into support
4. Connect and lock the electric plug connection.
Connecting electric plug connection
5. Position the support and engage in lower side member.
Engaging the support
6. Push in the locating peg -1- of the support and check it is seated correctly.
Fastening the support
7. Tighten the fastening nut -3- and fastening screws -2-. - Tightening torque: 5.5 ftlb.
8. Lay the floor covering over the support and engage.
Subsequent work for Tiptronic control module (also referred to generally as control unit below)
If a new control unit has been installed, it must be programmed/coded.
Insert scuff plate.
Install rear side trim panel on the right.
Install front seat.
Programming Tiptronic control unit
Reading out from and writing to the Tiptronic control unit
Caution
Voltage drop
Risk of irreparable damage to control unit
Risk of damage to control unit
Fault entries in the control unit
Coding in the control unit is aborted
Malfunctions in control unit, even during programming
- Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
- Connect a battery charger with a current rating of at least - Nominal value: 40 A to the vehicle battery.
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 following message appears on the Porsche System Tester screen Codes read out successfully ]].
8. Switch off ignition and replace control unit.
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 ]].
Switch to Write in data ]] to load the data that was read out.
11. System Tester displays Coding write-in complete ]].
12. If the control unit has been installed in another vehicle, it will be necessary, as of Tester software 8.0, to reset adaption values:
12.1. In the Tiptronic menu, select the 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 then read out the fault memory.
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.
Caution
Voltage drop
Risk of irreparable damage to control unit
Risk of damage to control unit
Fault entries in the control unit
Coding in the control unit is aborted
Malfunctions in control unit, even during programming
- Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
- Ensure that the power supply is not interrupted during programming.
- Connect a battery charger with a current rating of at least - Nominal value: 40 A to the vehicle battery.
Caution
Voltage drop
Risk of irreparable damage to control unit
Risk of damage to control unit
Fault entries in the control unit
Coding in the control unit is aborted
Malfunctions in control unit, even during programming
- Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
- Ensure that the power supply is not interrupted during programming.
- Connect a battery charger with a current rating of at least - Nominal value: 40 A to the vehicle battery.
Caution
Voltage drop
Risk of irreparable damage to control unit
Risk of damage to control unit
Fault entries in the control unit
Coding in the control unit is aborted
Malfunctions in control unit, even during programming
- Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
- Ensure that the power supply is not interrupted during programming.
- Connect a battery charger with a current rating of at least - Nominal value: 40 A to the vehicle battery.
1. PIWIS Tester 9718 must be connected to the vehicle before starting it. Switch on the ignition. Press ]] to 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 unit 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 the menu, perform test drive and check fault memory with the System Tester.