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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 129 (87 - Air Conditioning -- CARRERA (997)) >> WM 870219 Removing And Installing Air Conditioning Control (Except 911 CARRERA 4 GTS, 911 CARRERA 4 GTS CABRIO) >> Coding Air Conditioning Control

Coding Air Conditioning Control

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

Information 

If the control unit for the air-conditioning control system is replaced, the control unit must be coded using PIWIS Tester II 9818  . This adapts the control unit to the vehicle and equipment.

During coding, it is essential to guarantee the power supply for 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 can occur with later software versions.

The procedure described here has been structured in general terms; different text or additions may appear in the Porsche System Tester.

  1. PIWIS Tester II 9818  must be connected to the vehicle and ignition switched on.
  2. Select the vehicle type and start the PIDT.
  3. Select Air conditioning  and Maintenance/repairs  with the cursor keys and press [F12] to confirm your selection.
  4. Select Control unit replacement  with the cursor keys and press [F12] to confirm your selection.
  5. Select Read data  (coding) with the cursor keys and press [F12] to confirm your selection.
  6. The message Data was read out  appears on the Porsche System Tester screen. Press [F12] to continue.
  7. Switch off ignition and replace the air-conditioning control system.
  8. Switch to the Fault finding  menu and carry out vehicle handover  by pressing [F9].
  9. Select Special functions  and Erase all fault memories  in the menu and press [F12] to continue.
  10. Follow the instructions on the PIWIS Tester.
  11. Carry out automatic search of control units.
  12. Select Air conditioning  and Maintenance/repairs  with the cursor keys and press [F12] to confirm your selection.
  13. Select Control unit replacement  with the cursor keys and press [F12] to confirm your selection.
  14. Go to the Write data  menu and press [F12]. The data that was read out is now loaded.
  15. The System Tester displays the message Data has been written  . Press [F12].
  16. Select System test  with the cursor keys and press the [F8] to start.
  17. The Tester starts the system test  . Follow the instructions on the Tester.
  18. Exit the menu, carry out a test drive and check the function of the air-conditioning control system. Read out the fault memory.
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