CDR23 Replacement
WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
The CDR23 is provided in active production mode in new vehicles and as a spare part. Each time the vehicle is started, the stored VIN is compared with that in the instrument cluster. Provided no match is found, the device switches off after 30 seconds and the PROTECTED message appears in the display. The device is not operational.