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Home >> Porsche >> 2016 >> Cayman GTS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 254 (91 - Radio, Stereo, Telephone, On-Board Computer -- 92A Cayenne) >> WM 916255 Replacing Control Unit For Steering Wheel Electronics (Cayenne, Cayenne GTS, Cayenne Turbo S, Cayenne S, Cayenne S Hybrid, Cayenne Turbo, Cayenne S Diesel, Cayenne (3.0)) >> Replacing Control Unit For Steering Wheel Electronics

Replacing Control Unit For Steering Wheel Electronics

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  .

Information 

On vehicles with the equipment variant multi-function steering wheel, a function enable process must be carried out after replacing the steering wheel electronics control unit.

  1. Connect the PIWIS Tester to the vehicle and start the PIWIS Tester. Switch on ignition.
  2. Select the vehicle type and start the diagnostic application.
  3. Select the steering wheel electronics  control unit in the overview  .
  4. Codings/adaptations  must now be selected.
  5. Automatic coding  must now be selected. Then press [F12] to continue.
  6. The Tester displays the message Coding has been completed successfully  . Press [F12] to continue.
  7. Select Steering-angle sensor calibration  in the Maintenance/repairs  menu.
  8. Follow the instructions on the Tester and press [F8] to start.
  9. The Tester indicates that the calibration was completed successfully  . Press [F12] to continue.
  10. Read out the fault memory and erase it if necessary.
  11. Function test: Perform a test drive.
  12. Read out the fault memory.
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