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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 139 (91 - Radio, Telephone, On-Board Computer, Navigation -- CARRERA (997)) >> WM 916219 Removing And Installing Control Unit For Steering Wheel Electronics (Except 911 CARR. GTS Coupe, 911 CARRERA Black Edition, 911 CARR. Coupe "Edition Style", 911 CARR. GTS CABRIO, 911 CARRERA CABRIO Black Edition, 911 CARR. CABRIO "Edition Style", 911 Turbo S Coupe "Ed. 918 SPYDER", 911 CARRERA 4 GTS, 911 Turbo S CABRIO "Ed. 918 SPYDER", 911 CARRERA 4 GTS CABRIO, 911 Gt3 RS 4.0) >> Reading Data Out Of And Writing Data Into The Control Unit For Steering Wheel Electronics >> Reading And Writing Values

Reading And Writing Values

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.
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 

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 additions may appear in PIWIS Tester II 9818  .

  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 Steering wheel electronics  and Maintenance/repairs  with the cursor keys and press [F12].
  4. Select Control unit replacement  with the cursor keys and press [F12].
  5. Select Read data  (coding) with the cursor keys and press [F12].
  6. The message Data was read out  appears on the Porsche System Tester screen. Press [F12] to continue.
  7. Switch off ignition and replace control unit. → Removing Control Unit For Steering Wheel Electronics  
  8. Switch to the Additional menu  and perform vehicle handover  by pressing [F12].
  9. Select Erase all fault memories  in the menu and press [F12].
  10. Carry out automatic search of control units.
  11. Go to the Write data  menu and press [F8] to start. The data that was read out is now loaded.
  12. The System Tester displays the message Data has been written  . Press [F12] to continue.
  13. Change to the Coding  menu and compare the coding with the vehicle equipment. Recode if necessary.
  14. Exit the menu, carry out a test drive and read out the fault memory.
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