Scan Tool Data Definitions (Gen 5)

WARNING: This page is about a different car, the 2005 Pontiac Pursuit and 2005 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

8 Digit GM Part Number: This displays the part number for the vehicle communication interface module (VCIM).
Component Serial Number 13-16: This is the third partition of the serial number.
Electronic Serial Number: This is the electronic serial number stored in the VCIM which is used by the OnStar® Call Center.
Julian Date of Build: This displays the day of the year the module was built.
Module I.D.: This displays the version of OnStar® which the vehicle is equipped with.
Software I.D.: This displays the 3-digit number of the software version used on the OnStar® VCIM.
VCI Module Station I.D.: This is the station identification number stored in the VCIM which is used by the OnStar® Call Center.
Year Module Build: This displays the year the module was built.