Porsche 996 TT, Repair Manual

Page: 1772 / 2099

Installing instrument cluster
1. Engage electrical plug connections and fasten the dashboard insert on the
dashboard.
2. Install hazard warning light switch.
3. Press button −A− onto the hazard warning light switch −B− until the button is heard to
engage.
4. Connect the battery and perform a function
test.
If a new instrument cluster has been installed, it must be coded. •
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Coding the instrument cluster
Note
As of model year '01, 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 911 Turbo
vehicles. > 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.
The other menu items are described in the Diagnosis Manual, folder ’ 0, 9025 Control module replacement,
instrument cluster .
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):
•
einordnung
Installing instrument cluster 1709