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Home >> Porsche >> 2004 >> Boxster (986) F6-2.7L >> Repair and Diagnosis >> Accessories and Optional Equipment >> Testing and Inspection >> Component Tests and General Diagnostics >> Part 1

Part 1



PCM2/CDR23

Control unit function - gateway

Terminating resistors on the CAN
Terminating resistors are fitted to each end of the wiring to prevent reflection on the wiring. These terminating resistors are integrated into each control module. The interconnection prevents the resistors from being measured with the ohmmeter from the outside.

Audio tests
The following functions can be run using this menu item:
- Manual single selection
- Automatic test

Menu item Function

- Manual single selection A manual audio test can be carried out using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the control modules selection and confirm with [>>] key.
- Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
- Select the Audio tests menu item.
- Select "Manual single selection" menu item.
- Select a particular system and confirm with the [>>] key.

The following selection is available:
- Front left, test frequency 1 kHz
- Front right, test frequency 1 kHz
- Door speaker left, test frequency 1 kHz
- Door speaker right, test frequency 1 kHz
- [F5] Boost volume
- [F6] Lower volume
- [F8] Start test

- Automatic test A manual audio test can be carried out using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the control modules selection and confirm with the [>>] key.
- Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
- Select the "Audio tests" menu item and confirm with the [>>] key.
- Select the "Automatic test" menu item and confirm with the [>>] key.
The test sequence is automatic.

CAN comfort
Communication between the 9588 Porsche System Tester II and the MOST control modules only takes place via the K lead to the instrument cluster. The data is transferred from the instrument cluster gateway to the MOST control modules, via CAN comfort to the PCM2 gateway, via the electrical MOST in the PCM2 and via the optical MOST outside of the PCM2.

CD changer (CDC)
The CDC is available as an optional feature and is linked to the PCM2 via the optical waveguide.

Coding table


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Part 2:




Part 3:






Coding
Under the "Modify coding" menu item, the PCM2 code can be extracted and the PCM2 coded on a vehicle-specific and country specific basis.

Menu item Function

- Units You can code the relevant units using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the Control units menu and confirm with the [>>] key.
- Select "PCM2 GW" in the Boxster (986) PCM2 function selection menu and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection menu and confirm with the [>>] key.
- Select "Units" in the PCM2 GW coding menu and confirm with the [>>] key.
- Select "the relevant units" from the menu item that is displayed and code them with the [F8] key.

The following selection is available:
- Metric, RoW (°C, litre, km)
- UK English (°C, gallon, mph)
- US English (°F, gallon, mph)

- Vehicle type vehicle The PCM2 GW corresponding to the vehicle
coding type can be coded using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the Control units menu and confirm with the [>>] key.
- Select "PCM2-GW" in the PCM2 function selection menu and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection menu and confirm with the [>>] key.
- Select "Vehicle type vehicle coding" in the Coding menu and confirm with the [>>] key.
- Select "Boxster (986)" in the menu and code with the [F8] key

- Vehicle version vehicle The PCM2 GW corresponding to the vehicle
coding version can be coded using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the Control units menu and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection menu and confirm with the [>>] key.
- Select "Vehicle version" in the PCM2 GW coding menu and confirm with the [>>] key.
- Select the relevant version "Coupe, Cabrio, Targa" in the menu and code with the [F8] key

- Right/left-hand drive The PCM2 GW corresponding to the vehicle
vehicle coding version can be coded using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the Control units menu and confirm with the [>>] key.
- Select "PCM2 GW" in the PCM2 function selection menu and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection menu and confirm with the [>>] key.
- Select "Right/left-hand drive vehicle coding" in the PCM2 GW coding menu and confirm with the [>>] key.
- Select "Right or left-hand drive" in the menu corresponding to the vehicle equipment and code with the [F8] key.

- Air conditioning The PCM2 GW corresponding to the air-conditioning
with/without equipment can be coded using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the control modules selection and confirm with the [>>] key.
- Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection and confirm with the [>>] key.
- Select "Air conditioning with/without" in the PCM2 GW coding function selection and confirm with the [>>] key.
- Select "Air conditioning with/without" corresponding to the equipment in the Modify PCM2 GW coding function selection and code with the [F8] key.

- Country coding You can code the country code using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the control modules selection and confirm with the [>>] key.
- Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection and confirm with the [>>] key.
- Select "Country coding" in the PCM2 GW Coding function selection and confirm with the [>>] key.
- Select "the relevant country coding" from the menu item that is displayed and code it with the [F8] key.

- MOST switch The MOST switch corresponding to the vehicle configuration can be coded using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the Control units menu and confirm with the [>>] key.
- Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection and confirm with the [>>] key.
- Select "MOST switch open/closed" in the PCM2 GW coding function selection and confirm with the [>>] key.
- Select "MOST switch open/MOST switch closed" from the menu displayed and code with the [F8] key.

The following selection is available:
- MOST switch open
- MOST switch closed

- PCM2 code It is possible to code the PCM2 code under this menu item after replacing the PCM2.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the control modules selection and confirm with the [>>] key.
- Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection and confirm with the [>>] key.
- Select "PCM2 code" in the PCM2 GW coding function selection.
- Take the PCM2 code from IPAS, enter it and code it with the [F8] key.

- Production mode The PCM2 is set in the "Production mode ON" low-power mode in the factory and this must be switched off when put into service.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the Control units menu and confirm with the [>>] key.
- Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection and confirm with the [>>] key.
- Select "Production mode" in the PCM2 GW Coding function selection and confirm with the [>>] key.
- Select "Production mode OFF" from the menu item displayed and code it with the [F8] key.

The following selection is available:
- Production mode on
- Production mode off

- Tuner parameters You can code the tuner parameters (country-specific tuner setting) for the country of registration using this menu item.
- Connect and start the 9588 Porsche System Tester II and switch on the ignition.
- Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
- Select "PCM" in the control modules selection and confirm with the [>>] key.
- Select "PCM2 GW" in the Boxster (986) PCM2 function selection and confirm with the [>>] key.
- Select "Coding" in the PCM2 GW function selection and confirm with the [>>] key.
- Select "Tuner parameters" in the PCM2 GW Coding function selection and confirm with the [>>] key.
- Select the "country code" for the country of registration and code with the [F8] key.

Data transfer fault
If faults are detected when the data is decoded, this is known as a data transfer fault. The faults can arise when data are being coded, transferred when the optical input level is too low or when being decoded. A fault entry is not recorded.

Extended identification
Additional data present in the control unit can be read out using this menu item.

1. Connect and start the 9588 Porsche System Tester II and switch on the ignition.
2. Select "Boxster (986)" in the Vehicle type menu and confirm with the [>>] key.
3. Select "PCM" in the control modules selection and confirm with the [>>] key.
4. Select "PCM2 GW" in the PCM2 function selection and confirm with the [>>] key.
5. Select "Identification" in the PCM2 GW function selection and confirm with the [>>] key.
6. "Diagnosis software number; PCM2 part number." appears on the display.
7. Confirm PCM2 GW extended identification with the key or the [F8] key.

The following data can be read out:
- CRIN (Car Radio Identification Number)
- Date of ECU Manufacturing (DD;MM;YYYY)
- Repair Shop Code or Tester Serial Number
- System Supplier ECU Hardware Number (cw, year)
- System Supplier ECU Hardware Version Number
- System Supplier ECU Software Number (cw, year)
- System Supplier ECU Software Version Number
- Vehicle Manufacturer Diagnostic Index
- Vehicle Manufacturer ECU Hardware Number
- VIN (Vehicle Identification Number)

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