Coding Air-Conditioning Regulator

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. 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, it must be programmed using the Porsche System Tester. This adapts the control unit to the vehicle and equipment.
Before the control unit is removed and replaced, a read-out of the codes must be obtained from the Porsche System Tester (if possible).
During coding, it is essential to guarantee the power supply for the Porsche System Tester. A battery charger with a current rating of at least 40 A must be connected to the vehicle battery.
Symbol for the Tab key = [→]
The Porsche System Tester 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 or additions may appear in the Porsche System Tester.

Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on ignition. [>>] Continue.
Select vehicle type using the cursor keys. [>>] continue.
Carry out automatic search of control units.
Select Air conditioning with the cursor keys and press the [>>] key.
Select Calibration with the cursor keys and press the [>>] key.
Follow the instructions on the Tester.
Select Coding and activate with the [>>] key.
Select the corresponding equipment variant with the cursor keys and write coding with [F8].
Follow the instructions on the Tester.
Quit menu, switch off ignition, switch it back on, and read out fault memory once more.