DTC B1001: Instrument Panel Module Not Calibrated To Vehicle: Description
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
When DTC B1001 is set in IPM, IPM has not been calibrated or will not calibrate to vehicle. Vehicle will continue to operate.When DTC B1001 is set in radio, VIN data in radio does not match VIN data received by radio from other modules. Radio will not operate and will display "CALIBRATE".