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911055 Replacing PCM


WM 911055 Replacing PCM

Tools





Technical values





Reading and writing values

NOTICE

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.

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 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.

- Details of current compatibility with Bluetooth telephones can be found at www.porsche.com/car Configurator.

1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on ignition.
2. Select vehicle type.
3. Select the required control unit PCM 3.1 in the overview.
4. Select Maintenance/repairs.
5. Select Control unit replacement and press F12.
6. Select Read data and press F12.
7. Press F8 to start reading out data.
8. Check the chassis number and press F12.
9. Switch off ignition and replace the control unit. -> 911019 Removing and installing PCM display and operator control unit 911019 Removing and installing PCM 3.1 display and operator control unit.
10. Switch on ignition. Select the Write data menu (procedure described above), press F12 and then press F8 to start installing the data that was read out.
11. The System Tester displays the message Data has been written. Press F12 to continue.
12. Read out the fault memory and erase it if necessary.
13. Select Function activation in the Maintenance/repairs menu and press F12.
13.1. The PIWIS Tester displays all the possible enabling codes.
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 (see operating instructions).
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.
19. Read out the fault memory on the PCM 3.1 system.
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