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

Calibration ID: The scan tool displays the calibration ID for the module.

Component Serial Number: The scan tool displays the module serial number.

Julian Date of Build: The scan tool displays the module date of build in total calendar days.

PROM ID: The scan tool displays the module PROM ID.

Year Model Built: The scan tool displays the module year built.