Navigation System: Service and Repair
Removing And Installing Navigation Unit
Tools
Removing navigation unit
INFORMATION: If the navigation unit has to be replaced, the coding must be read out prior to removal using the PIWIS tester P 9718.
Remove ignition key.
Depending on the equipment I No., the navigation unit is located next to or on the CD - changer.
1. Push the removal tool 9570/1 -1- into the navigation unit and pull the navigation unit forward.
2. Unlock the electrical plug -1, 2, 3- on the navigation unit and pull out the navigation unit.
Removing the navigation unit with retaining bracket
INFORMATION:
- If the navigation unit has to be replaced, the coding must be read out prior to removal using the PIWIS tester P 9718.
- If the navigation unit is removed with the retaining bracket, then new clips must be used before reinstallation.
1. Give the navigation unit with the retaining bracket a pull forward, and lever out the clips with a screwdriver if necessary.
2. Unlock the electrical plug -1, 2, 3- on the navigation unit and remove the navigation unit with holder.
Installing navigation unit
1. Insert the navigation unit into the retaining bracket and plug into the electrical plug connections -1, 2, 3- until the plug is felt to click into place.
2. Slide the navigation unit further into the retaining bracket until the navigation unit is felt to click into place.
Installing the navigation unit with retaining bracket
INFORMATION: If the navigation unit is removed with the retaining bracket, then new clips must be used before reinstallation.
1. Install new clips, push in the navigation unit in the retaining bracket until the navigation unit is felt to engage.
2. Push in electrical plug connections -1, 2, 3- until plugs are felt to engage.
3. Position the navigation unit with retaining bracket on the body and push into the four holders. Check proper seating of holder by pulling up on the retaining bracket.
Programming navigation unit
Reading out and writing values for navigation unit
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 the vehicle type.
3. Switch from the vehicle type to the list of control units.
4. Select PCM 2.1, Navigation 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 codings (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 unit.
9. 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 >>.
11. Carry out automatic search of control units.
12. In the menu Write in codings >> the data read-out are installed.
13. System tester displays Coding write-in complete >>.
14. Quit menu, insert navigation CD, switch off ignition and lock the vehicle, then unlock, switch on ignition and load navigation CD.
15. Perform navigation during the test drive and afterwards read out fault memory.
Coding navigation unit
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.
- The procedure described must be applied when a control unit has to be replaced and the tester function Control unit replacement cannot be used.
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. Using the >> key, move from the vehicle type to the list of control units.
7. Select PCM 2.1, Navigation with the cursor keys and press the >>.
8. Select Coding and press the >>.
9. In the menu Coding the PCM code has to be displayed using *.
10. Quit menu, insert navigation CD, switch off ignition and lock the vehicle, then unlock, switch on ignition and load navigation CD.
11. Perform navigation during the test drive and afterwards read out fault memory.