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 module's 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 module's calibrations.

Ignition 3 Input- The scan tool displays Active/Inactive. The scan tool displays Active when the Ignition 3 input (run) circuit of the module receives a battery voltage signal from the ignition switch.

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 Counter- The scan tool displays 0-50. The module counts each time the ignition switch is cycled.

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

Ignition Switch- The scan tool displays Accy./Crank/Off/RAP/RAP-Unlock/Run/Unlock. 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, 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 (Retained Accessory Power) 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 RAP-Unlock when RAP is active and the Ign. Unlock circuit of the DIM receives 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. The scan tool displays Unlock when the Unlock circuit of the DIM receives a battery voltage signal from the ignition switch.

Ign. Unlock- The scan tool displays Active/Inactive. The scan tool displays Active when only the Unlock circuit of the DIM receives a battery voltage signal from the ignition switch.

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

Key In Ignition- The scan tool displays Yes/No. The scan tool displays Yes when the key is in the ignition and the IPM receives a signal from the ignition switch.

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

Run/Crank- The scan tool displays Active/Inactive. The scan tool displays Active when the Crank/Run circuit of the RIM receives a battery voltage signal from the ignition switch.