GM Service Manual Online
For 1990-2009 cars only
Battery Voltage: The scan tool displays Volts. The scan tool displays the battery voltage received by the module.

Cluster Part Number: The scan tool displays 0-99. The scan tool displays the part number of the IPC.

Crank: The scan tool displays Yes/No. The scan tool displays yes when the module receives battery positive voltage on the crank request signal circuit.

Commanded GEN: The scan tool displays On/Off. The scan tool displays On when the module commands the generator ON.

Crank Request: The scan tool displays Yes/No. The scan tool displays Yes when the module receives battery positive voltage on the crank request signal circuit.

Generator PWM: The scan tool displays a percentage. The percent of time the generator is producing power.

Julian Date of Build: The scan tool displays 0-999. The scan tool displays the day of the year the module was built.

Prom ID: The scan tool displays an alpha/numeric code. The scan tool displays the identification number of the modules internal PROM.

Software Part Number: The scan tool displays an 8 digit number. The scan tool displays the part number of the modules software.

Software Release, Day: The scan tool displays 1-31. The scan tool displays the day the modules software was released.

Software Release, Month: The scan tool displays 1-12. The scan tool displays the month the modules software was released.

Software Release, Year: The scan tool displays 0-99. The scan tool displays the year the modules software was released.

Software Version: The scan tool displays 0-99. The scan tool displays the version of the modules software.

Starter Enable Relay: The scan tool displays OK/Fault. The scan tool display OK when the module receives battery positive voltage on the CRANK relay control circuit or the ignition is in the START position.

Starter Relay Status: The scan tool displays On/Off. the scan tool displays On when the module commands the CRANK relay ON.

Volt Lamp: The scan tool displays On/Off. The scan too displays On when the module commands the volts lamp to be ON.