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Home >> Porsche >> 2016 >> Cayman GTS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (94 - Lights, Lamps, Switches, Exterior) >> WM 945719 Removing And Installing Control Unit For Gas-Discharge Headlight (All Models) >> Programming Control Unit For Gas-Discharge Headlight

Programming Control Unit For Gas-Discharge Headlight

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 

During programming, 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.

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 generally; different text or additions may appear in the Porsche System Tester.

  1. Control unit was replaced.
  2. PIWIS Tester 9718  must be connected to the vehicle. Start the PIWIS Tester and switch on ignition.
  3. Select vehicle type.
  4. Switch to the control units and press [>>].
  5. Select new control unit for gas-discharge headlight Headlight control unit, left or Headlight control unit, right  using the cursor keys and press [>>].
  6. Switch to the Control unit replacement  menu and press [>>].
  7. The Tester displays the required coding variants. Note them down if necessary and press [>>].
  8. Enter the VIN  or copy it by pressing [>>].
  9. Confirm the VIN  by pressing [F7]. [>>].
  10. Select the Chassis  variant and press [>>].
  11. Select the headlight type static cornering light  and press [>>].
  12. Select the headlight type dynamic cornering light  and press [>>].
  13. Select the Country version  and press [>>].
  14. The coding is displayed. If this coding is OK, code it by pressing [F8].
  15. Observe message Vehicle must be stationary  on the Tester. [>>].
  16. The message Resetting  appears on the Tester. Control unit was replaced successfully.  [>>].
  17. Switch ignition off and then on again.
  18. If the fault Headlight system fault  now appears in the instrument cluster, read out the fault memory in the replaced control unit, e.g. Headlight control unit, left  and in the control unit that was not replaced, e.g. Headlight control unit, right  . If the fault is 1044 Control unit coded incorrectly  or 15586 Control unit software function error  , the "new" control unit was programmed using a more recent software version than the "old" control unit. If this is the case, the "old" control unit (which was not replaced) must also be re-programmed using the same procedure as described in Steps  5 to 18 above.
  19. Check that the headlights are working correctly by switching on the lights.
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