GM Service Manual Online
For 1990-2009 cars only
8-Digit GM Part Number: The scan tool displays an 8-digit alphanumeric number. This is the modules part number.

Battery Voltage: The scan tool displays 0-30 Volts. The voltage measured between the module's battery positive voltage circuit and ground circuit.

Calibration ID: The scan tool displays a 4-digit alphanumeric number. This number designates the modules calibrations.

Driver Door Jamb Sw.: The scan tool displays On/Off. Display indicates the state of the driver door jamb switch. On indicates the door is open and Off indicates the door is closed.

Ign. Accessory: The scan tool displays Active/Inactive. The scan tool displays Active when only the Accessory and Unlock circuits of the DIM receives a battery voltage signal from the ignition switch.

Ignition Crank/Run: The scan tool displays Active/Inactive. The scan tool displays Active when the Crank/Run and Unlock circuits of the DIM receives a battery voltage signal from the ignition switch.

Ign. Run: The scan tool displays Active/Inactive. The scan tool displays Active when the Run, Accessory, Run/Crank and Unlock circuits of the DIM receives a battery voltage signal from the ignition switch.

Ignition Switch: The scan tool displays Accy./Crank/Off/RAP/Run. The scan tool displays Accy. when the accessory and Unlock circuits of the DIM receives a battery voltage signal from the ignition switch. The scan tool displays Crank when the Crank/Run, and Unlock circuits of the DIM receives a battery voltage signal from the ignition switch. The scan tool displays Off when none of the power moding circuits of the DIM receive a battery voltage signal from the ignition switch. The scan tool displays RAP when RAP is active and none of the power moding circuits of the DIM receive a battery voltage signal from the ignition switch. The scan tool displays Run when all of the power moding circuits of the DIM receive a battery voltage signal from the ignition switch.

Ign. Off/Run/Crank: The scan tool displays Active/Inactive. The scan tool displays Active when the Off/Run/Crank circuit of the DIM receives a battery voltage signal from the ignition switch.

Julian Date of Build: The scan tool displays 3-digit numeric number. This is the day of the year that the module was built.

Pass. Door Jamb Sw.: The scan tool displays On/Off. Display indicates the state of the passenger door jamb switch. On indicates the door is open and Off indicates the door is closed.

PROM ID: The scan tool displays a 4-digit alphanumeric number . This is modules internal PROM identification number.

RAP Output: The scan tool displays On/Off. Display indicates the status of the RAP function.