GM Service Manual Online
For 1990-2009 cars only
8-Digit GM Part Number: The scan tool displays an 8-digit numeric number. The GM part number of the module.

Calibration ID: The scan tool displays 0-9999. The number designating what the caliberations the module contains.

CD Type: The scan tool displays the type of CD inserted.

Julian Date of Build: The scan tool displays 0-9999. Displays the day of the year that the module was built.

Navigation Database Software Level: The scan tool displays 0-9999. Displays the version of database software.

Navigation Hardware Level: The scan tool displays 0-9999. Displays the version of hardware.

Navigation Software Level: The scan tool displays 0-9999. Displays the version of the navigation software.

Phone: The scan tool displays Present or Not Present. The scan tool displays Connected when the radio recieves Class 2 information from the phone module.

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

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