Circuit/System Description
WARNING: This page is about a different car, the 2008 Cadillac XLR. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is generated by the radio when the vehicle identification number (VIN) received over the class 2 serial data circuit and the VIN stored in radio memory do not match. This DTC will also set when no VIN is received over the class 2 serial data circuit.