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Home >> Porsche >> 2016 >> Macan S >> Repair and Diagnosis >> External Pages >> Different car >> Section 108 (96 - Lights, Lamps, Switches, Interior -- PANAMERA (970)) >> WM 962755 Replacing Switch Console (Except PANAMERA S Executive, PANAMERA Turbo Executive, PANAMERA GTS) >> Subsequent Work >> Reading And Writing Values

Reading And Writing Values

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2016 Porsche Panamera, 2015 Porsche Panamera, 2014 Porsche Panamera, 2013 Porsche Panamera, and 2012 Porsche Panamera. 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 Porsche System Tester to the vehicle and start the System Tester. Switch on ignition.
  2. Select the vehicle type and start the PIDT.
  3. Select the Air conditioning  control unit 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. → 962719 REMOVING AND INSTALLING SWITCH CONSOLE 
  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. Select the Drive links/checks  menu.
  13. Select General  group and press [F12].

    Information 

    • The Compressor run-in function can only be carried out when the engine is running. 
    • Prerequisites for compressor run-in can be displayed in the Porsche System Tester by pressing the [F1] Help button for the air-conditioning control unit. 
    • Specifications in the Porsche System Tester have priority and take precedence over the specifications in the description. 
    • If the Compressor run-in function cannot be activated, then the Reset compressor run-in function must be carried out first. 
    • Then start the Compressor run-in function again. 
  14. Start the engine.
  15. Select the Reset compressor run-in  function by pressing [F12] and then press [F8] to start the reset process.
    1. 15.1. A compressor run-in remaining time of 150 s  must be set.
  16. Select the Compressor run-in  function, press [F12] and then [F8] to start.
  17. Read out the fault memory and erase it if necessary.
  18. Check the function of the switch console during a test drive and read out the fault memory.
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