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Control Unit Function



Control unit function

Events

NOTE:
- The occurence of particular system errors is stored in the event memory. Furthermore, it is possible to read out the time of the occurence using the [F8] key. The time is shown in minutes. The events stored in the event memory concern components of the instrument cluster and also components of other control units like PSM or DME. The following system errors are stored in the event memory:
- During diagnosis, PSM failure is entered into the event memory via communication with the Porsche System Tester II No. 9588 and the respective warning lights are activated during the automatic control unit search. In this case, no fault is present and the event memory is to be erased after completion of the diagnosis.










Coding
The following coding options are available under the menu item "Coding":

Menu item Function
- Country coding Selection for the following country codings:.
UK, RoW, USA, Canada, Japan and Saudi Arabia
- Connect the Porsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control module instrument cluster
- Select menu item Coding
- Select menu item "Country coding"
- Select the respective country and code with [F8] key.

- PSM It is possible to code the instrument cluster under this menu item after replacing the instrument cluster.
- Connect the Porsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control module instrument cluster
- Select menu item "PSM"
- Select the respective menu item with / without PSM and code with [F8] key

- Air conditioning This menu item enables the instrument cluster to be coded after replacing the instrument cluster or after retrofitting air conditioning.
- Porsche System Tester II No. 9588
- Connect, switch on ignition and start the automatic control module search.
- Select vehicle type Boxster (986) and control module instrument cluster
- Select menu item "Air conditioning"
- Select the respective menu item with / without air conditioning and code with [F8] key

- Cruise control This menu item enables the instrument cluster to be coded after replacing the instrument cluster or after retrofitting a cruise-control actuator.
- Connect the Porsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control module instrument cluster
- Select menu item Coding
- Select menu item "Cruise-control actuator"
- Select the respective menu item with / without cruise-control actuator and code with [F8] key

- On-board computer This menu item enables the instrument cluster to be coded after replacing the instrument cluster or after retrofitting an on-board computer.
- Connect the Porsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control module instrument cluster
- Check menu item "On-Board Computer"
- Select the respective menu item with / without On-Board Computer and code with [F8] key

- Vehicle identification number It is possible to enter the Vehicle Ident. No. under this menu item after replacing the instrument cluster.
- Connect thePorsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control module instrument cluster
- Select menu item Coding
- Select menu item "Vehicle Ident. No."
- Enter Vehicle Ident. No and code with [F8] key

- Activate instrument cluster This menu item enables the instrument cluster to be activated or to be deactivated. The deactivated instrument cluster is converted into the low-current mode (production mode) and can be automatically activated under the menu item "Vehicle hand-over".
- Connect the Porsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control module instrument cluster
- Select menu item Coding
- Select menu item 'Activate instrument cluster'
- Select the desired coding and code with [F8] key.

- Time Time entry option
- Connect thePorsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control unit instrument cluster
- Select menu item Coding
- Select menu item "Time"
- Enter the time and code with [F8] key

- Synchronize K-number This menu item enables the synchronization of the K-number after replacing the instrument cluster or the PCM.
- Connect thePorsche System Tester II No. 9588, switch on the ignition, and start the automatic control unit search.
- Select vehicle type Boxster (986) and control unit instrument cluster
- Select menu item Coding
- Select menu item "Synchronize K-number"
- The further procedure is performed automatically by the Porsche System Tester II No. 9588 again.
- The following display appears:
- Current K-number
- Connection to the PCM is being established
- K-number in PCM is current
- Connection to the instrument cluster is being established
- Function successfully ended

NOTE:
- Synchronize K-number
- 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 unit. The "Knumber" varies depending on vehicle type and country equipment.
- Refer to Technical Information for this theme

Total mileage
It is possible to code the total mileage under this menu item after replacing the instrument cluster.

1. the Porsche System Tester II No. 9588 and switch on the ignition.
2. Select vehicle type Boxster (986) and the instrument cluster control module and press the key [>>]
3. Select the menu item "Transponder key" and press the key [>>].
4. You are requested to enter the "Vehicle Ident. No.".
5. Enter the Vehicle Ident. No. or accept with the key [>>], check the entry and press key [F7].
6. Observe the instructions of the Porsche System Tester II No. 9588, enter the total mileage with the tabulator keys, check and then press the [F8] key to code the entered total mileage.

The total mileage can also be read out from the old instrument cluster under the menu item "Control unit replacement" and can be transferred into the new instrument cluster if the old replacement instrument is still functional and if it is possible to establish communication with the Porsche System Tester II No. 9588.

Speedometer A
A speed can be simulated under this menu item to check the function of dynamic volume control (speed-dependent volume). If the function of the dynamic volume is switched on and the speed is simulated by means of Porsche System Tester II No. 9588 PST 2, the volume must change according to the speed. The higher the simulated speed, the higher the volume.

Control unit replacement
Certain values can be read out of the old instrument cluster and can be transferred into the new instrument cluster. A prerequisite for this is that the communication can be set up between the old instrument cluster and Porsche System Tester II No. 9588. The following values can be read out of the old instrument cluster and can be transmitted into the new instrument cluster:
- Total mileage
- Tank calibration
- Vehicle Ident. No.

NOTE:
- The country coding is not read out and transferred via this function.
- Correct country coding is a prerequisite of the correct functioning of the instrument cluster.
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