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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Instruments, Fuel Gauge, Alarm System - (Removal & Installation) 911 CARRERA (996) >> Removing and installing instrument cluster >> Coding the instrument cluster

Coding the instrument cluster

NOTE:
  • As of model year '02, the tolerance of the speed display has been restricted. This was achieved by changing the software ("K-number") on the instrument cluster and PCM control module. The"K-number" varies depending on vehicle type and country equipment.
  • The reason is as follows: different displays of the total mileage and the fuel consumption/average consumption in the instrument cluster and the PCM control module.
  • Therefore, in the case of repairs, the K-number in the instrument cluster must be corrected with the Porsche System Tester 2 (PST2) after the installation of a new instrument cluster in vehicles as of model year '02.> If this correction is not carried out, conflicting values for the total mileage and fuel consumption/average consumption will be displayed on the instrument cluster and the PCM control module when in driving mode.

PROCEDURE for coding the instrument cluster: 

  1. Connect the PST2 to the diagnostic socket; switch on the PST2 and the ignition.
  2. In the menu"Control units", select Instrument cluster 
  3. In the function selection, select Coding  .
  4. Select menu item Country coding  .
  5. Select the respective country and code with F8 key.
    NOTE: In general, the K-number is adjusted when coding the instrument cluster. However, this point must be checked again when coding is complete, as described under PROCEDURE for changing the"K-number" in the instrument cluster (as of PST2 software 13.0).

    PROCEDURE for changing the"K-number" in the instrument cluster (as of PST2 software 13.0): 

  6. In the function selection, select Synchronize K-number. 
  7. Start the function using the key >>.
  8. After the function has been successfully performed in the instrument cluster, the message K-number synchronized  or the message K-number updated  appears in the Tester display. If the K-number is not updated, a connection to the PCM is set up automatically. The message Connecting to PCM  appears.
  9. Then the message Function successfully completed  appears.
  10. Return to the Start menu with the button ESC, switch off the PST2 and disconnect from the diagnostic socket.
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