CD Changer: Application and ID

Control Unit Function - CD Changer

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 unit. The interconnection prevents the resistors from being measured with the ohm meter from the outside.

CAN comfort
Communication between the Porsche System Tester II 9588 and the MOST control units only takes place via the K lead to the instrument cluster. The data is transferred from the instrument cluster gateway to the MOST control units, 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
It is possible to extract the chassis number and to code the PCM2 on a country-specific basis in the Modify coding menu.

Menu item
- Chassis number

Function
It is possible to extract or enter the chassis number under this menu item after replacing the PCM2.
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the vehicle type menu and confirm with the ->| key.
- Select PCM in the control units selection and confirm with the >> key.
- Select PCM2/CDR23 in the control units selection and confirm with the >> key.
- Select PCM2 GW in the PCM2 function selection and confirm with the >> key
- Select menu item Coding u Select the Chassis number menu item
- Enter the chassis number and code with the F8 key

Menu item
- Country coding

Function
Using this menu item, you can code the country code.
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the vehicle type menu and confirm with the ->| key.
- Select PCM in the control units selection and confirm with the >> key.
- Select PCM2/CDR23 in the control units selection and confirm with the >> key.
- Select PCM2 GW in the PCM2 function selection and confirm with the >> key
- Select the coding menu item and confirm with the >> key.
- Select the menu item Country coding and confirm with the >> key.
- Select the relevant country coding from the menu item that is displayed and code it with the F8 key