911 Carrera 4 Coupe (996) F6-3.6L (2002)
the fibre optic transmitter is monitored: max 85 degree C.
Voltage
The value indicates the voltage at the time the fault occurred.
Vehicle speed
The value indicates the vehicle speed at the time the fault occurred.
Vehicle hand-over
NOTE:
The CDR23 is transferred into production mode (low-current mode) in production. As known from other systems (alarm system, instrument cluster,
amplifier, roll-over bar), the CDR23 must be activated with the Porsche System Tester II No. 9588.
1. Connect and start the Porsche System Tester II No. 9588 and switch on the ignition.
2. Select 'Special functions' in the Vehicle type menu and confirm with the >> key.
3. Select 'Vehicle hand-over' in the Control units menu and confirm with the >> key.
4. Follow the instructions of the Porsche System Tester II No. 9588.
CDR23 Replacement
The CDR23 is supplied as a spare part in 'production mode ON'. Each time the vehicle is started, the stored CDR23 code is compared with the code in
the instrument cluster. If they match the device is operational.
If no match is found, the device switches off after 30 seconds and the 'PROTECTED' message appears in the display. The device is not operational. The
PCM2 code must be coded.
If a match is found, the device is operational. No further checks are made while the device is connected to the vehicle electrical system.
CDR23 Tools
CDR23 Tools
The following testers are required for vehicle diagnosis:
Porsche System Tester II No. 9588
Commercially Available Digital Multimeter
Measurement Tool Set No. 9684