GM Service Manual Online
For 1990-2009 cars only

8 Digit GM Part Number- The scan tool displays an 8 digit alphanumeric number. The part number of the module.

Band Number- The scan tool displays AM/FM/FM1. The current band that the radio is in.

Cassette Cut Tape- The scan tool displays 0-999. The number of cut tape errors the radio has recorded

Cassette Load/Unload Errors- The scan tool displays 0-999. The number of cassette loading and unloading errors the radio has recorded.

Cassette Inserted The scan tool displays Yes/No.

Cassette Metal The scan tool displays Metal/Non-Metal. The scan tool displays the type of cassette being played.

Cassette Side The scan tool displays Top/Bottom. The scan tool displays the current cassette side that is being played.

Cassette Tight Tape- The scan tool displays 0-999. The number of cassette tight tape errors the radio has recorded.

Driver Number- The scan tool displays 1-2. The memory position the driver has selected as received by Class 2 lines.

Julian Date of Build- The scan tool displays 0-999. The month and year that the module was built.

PROM ID- The scan tool displays 0-9999. The identification number of the radios internal PROM.

Preset Control- The scan tool displays a Preset 1-6. The preset number when the radio is on a preset station.

Source The scan tool displays the Tuner/Cassette. The scan tool displays the source of the output of the speakers.

Theft Armed- The scan tool displays Yes/No. The Scan tool displays Yes when the theft mode has been turned ON by recognizing a valid VIN #.

Theft Lock- The scan tool displays Yes/No. The scan tool displays Yes when the radio receives the incorrect VIN number from the PCM across Class 2 lines.

Total Cassette Hours- The scan tool displays 0-999 hrs. The total number of hours the cassette player has been used.

Total Radio Hours- The scan tool displays 0-999 hrs. The total number of hours the radio has been used.

Year Module Built- The scan tool displays a 1990-2020. The production year the module was manufactured.