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Home >> Porsche >> 2016 >> Cayman GTS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (43 Leveling System, Air Suspension, Damper Control -- 92A Cayenne) >> WM 431655 Replacing PASM Control Unit (Except Cayenne, Cayenne GTS, Cayenne Turbo S, Cayenne S, Cayenne S E-Hybrid, Cayenne Turbo, Cayenne S Diesel, Cayenne (3.0)) >> Reading Out And Writing Values For PASM Control Unit

Reading Out And Writing Values For PASM Control Unit

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: 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 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 

The PIWIS Tester II 9818  instructions take precedence since the description may be different with later Tester releases.

The procedure described here has been structured in general terms. Different text or additional information may appear in PIWIS Tester II 9818  .

  1. Connect the PIWIS Tester to the vehicle and start the Tester. Switch on ignition and press [F12] to continue.
  2. Select the vehicle type and start the diagnostic application.
  3. Select the required control unit, e.g. Levelling system/PASM  in the overview  .
  4. Select Maintenance/repairs  .
  5. Select Control unit replacement  and press [F12].
  6. 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 control unit. → 431619 REMOVING AND INSTALLING PASM 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 Tester displays the message Data has been written  . Press [F12] to continue.
  12. Read out the fault memory and erase it if necessary.
  13. Return to the overview  of control units.
  14. Check the PASM function during the test drive.
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