Scan Tool Data Definitions

WARNING: This page is about a different car, the 2007 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Battery Voltage: The scan tool displays 0.0-16.0 volts. The battery voltage input represents the system voltage measured at the body control module (BCM) ignition feed input.
Calibration ID: The scan tool displays the calibration ID.
Component Serial No.: The scan tool displays the component serial number.
Driver/Pass./Left Rear/Rt. Rear Door Jamb Sw.: Input from the respecting door indicating door status.
Ignition Accessory/Run: Input from ignition switch Accessory circuit. Used to determine power mode. Active in ACC and ON.
Ignition Switch: The scan tool displays Off/RAP/Accy./Run/Crank. The power mode is mapped to this input.
Ignition 1 Run/Crank: Input to the control module from the ignition switch indicating the Ignition 1 position. Active in ignition switch positions ON and START.
Key in Ignition: Input from ignition switch indicating that the ignition key is inserted into the ignition switch.
Julian Date of Build: The day of the year when module was built.
PROM ID: The scan tool displays the PROM ID.
Year Module Built: The year when module was built.
8-Digit GM Part Number: The module's part number.