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.