Scan Tool Data Definitions

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Cadillac Escalade EXT. 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 VIU.
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 VCU 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 VIU.
VCI Module Station I.D.: This is the station identification number stored in the VIU which is used by the OnStar® Call Center.
Year Module Build: This displays the year the module was built.