Teaching Dme (Dfi) Control Unit
Information
If the DME (DFI) control unit you are installing has already been taught (control unit was already taught in a vehicle), proceed according to the description given here.
This procedure should only be used for test purposes (troubleshooting in the fuel system). It is important that the data record programmed on the DME (DFI) control unit that was already taught matches the data record for the vehicle used here. The vehicle type, transmission type, model year and emission standard must all match. If the data is different, the control unit must be reprogrammed. See → Programming New Dme (Dfi) Control Unit
Information
If a new DME (DFI) control unit is installed in a vehicle, the immobiliser code documented in the PIWIS information system must be taught in the DME control unit using the Program immobiliser code menu.
When programming the DME (DFI) control unit, it is essential to guarantee the power supply for the Porsche System Tester. A battery charger with a current rating of at least 40 A must be connected to the vehicle battery.
The PIWIS Tester II 9818 instructions take precedence and in the event of a discrepancy, these are the instructions that must be followed. Deviations can occur with later software versions.
The procedure described here has been structured in general terms and has been described for version 17.10; different text or additions may appear with later Tester versions.
- PIWIS Tester II 9818 must be connected to the vehicle and ignition switched on.
- Select the vehicle type and start the PDIT.
- Select the DME/DFI, Programming menu.
- Select the Program immobiliser code menu and press [F12] to confirm your selection.
- Enter the Old immobiliser code (PPN, vehicle - OLD) and press [F12] to continue. Check the code again and confirm by pressing [F12].
- Enter the New immobiliser code (PPN, vehicle - NEW) and press [F12] to continue. Check the code again and confirm by pressing [F12].
- When the programming period expires, follow the instructions on the Porsche System Tester.
- For the learning and adaptation routine of the throttle valve (electronic accelerator), switch the ignition off and then on again for 60 seconds without starting the engine. Do not actuate the accelerator pedal. Switch ignition off again for at least 10 seconds. Switch on ignition. This completes the adaptation of the throttle valve adjusting unit and the programming sequence is complete.
- Read out the fault memory and delete the DME control unit fault on every control unit connected to the CAN.
- Carry out a test drive and read out and erase the fault memory if necessary.