Replacing PCM 3.1 Display And Operator Control Unit: Notes

→ Prior to disconnecting the control unit, switch off ignition and remove 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.

Information 

• If a new PCM/CDR is to be installed in a vehicle, the enabling code specified in the PIWIS information system must be used. 
• You can get the codes from the PIWIS Infosystem or from your importer by specifying the vehicle identification number. 
• During coding, it is essential to guarantee the power supply for the PIWIS Tester II 9818. 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 may occur with later software versions. 
• The procedure described here has been structured in general terms; different text may appear in the PIWIS Tester II 9818 or additional information/steps may be displayed or required. 

Information 

If the PCM unit is to be replaced with a new unit, the navigation data must be installed using a Software Update navigation CD/DVD  .

• To enable you to actually install the Software Update navigation data, you must read out the enabling code from the PIWIS information system. Additional enabling codes, e.g. customer has navigation system for Europe and Russia, or customer has already obtained navigation updates, must be queried by customer service personnel at the customer site. 
• The PCM maps software version can be read from the PIWIS information system (electrics/electronics information) 
• The required Software Update navigation CD/DVD must be ordered via PET. 
• The Software Update navigation CD/DVD must not be handed over to the customer. This CD/DVD can only be used with PIWIS Tester II 9818. 
• The Software Update navigation CD/DVD that corresponds to the relevant vehicle model year must always be used for the required PCM system, e.g. if the vehicle model year is 2010, the CD/DVD for 2010 must be used. This applies even if CDs/DVDs for 2011 are available. 
• The model year-based Software Update navigation CD/DVD must always be archived in the Porsche Centre. 
• Further changes/supplements to the Software Update navigation CD/DVD can also be obtained. These will have to be used later for older vehicles. For example, CDs/DVDs for 2011 are already available, but an error was found on the 2010 version, so the old CD/DVD for 2010 will have to be replaced with an updated CD/DVD for 2010. This process will be announced in a TI. 
• Current compatibility with Bluetooth telephones can be checked at http://www.porsche.com/germany/accessoriesandservices/porscheservice/vehicleinformation/documents/ 

Information 

If automatic coding is not possible, manual coding is to be carried out in accordance with vehicle equipment.

1. Replace control unit. → 911019 REMOVING AND INSTALLING PCM DISPLAY AND OPERATOR CONTROL UNIT .
2. Connect the PIWIS Tester to the vehicle and start it. Switch on ignition.
3. Select the vehicle type and start the diagnostic application.
4. Select the required control unit PCM 3.1  in the overview  .
5. Select Maintenance/repairs  .
6. Select Control unit replacement  and press [F12].
7. Check the chassis number and press [F12].
8. Write data  must now be selected. Then press [F12] to continue and press [F8] to start writing data.
9. The Tester displays the message Data has been written  . Press [F12] to continue.
10. Read out the fault memory  and erase it if necessary.
11. In the Coding/adaptation  menu, select Automatic coding  and press [F12].
12. Read out the fault memory  and erase it if necessary.
13. Select Function activation  in the Maintenance/repairs  menu and press [F12].
    1. 13.1. The PIWIS Tester displays the possible enabling codes.
    2. 13.2. Using the vehicle-specific codes from the PIWIS information system, click on the menus, enter the relevant enabling code  and press [F8] to start coding.
14. Quit the PCM 3.1  control unit. PCM 3.1 goes out of Service  mode.
15. Insert the Software Update navigation CD/DVD  into the PCM3.1 unit .
16. Confirm the messages on the PCM unit, start the update  according to instructions and leave it running.
17. PCM then displays the message Update to version completed successfully  . Confirm this info on the touchscreen.
18. Check the audio, telephone, TV and navigation functions, depending on vehicle equipment.