GM Service Manual Online
For 1990-2009 cars only
8 Digit GM Part Number: The scan tool displays an 8 digit number which indicates the GM part number of the module.

# of Fobs Programmed: The scan tool displays 1 Fob -- 4 Fobs to indicate the number of keyless entry transmitters that are programmed for the system.

Calibration ID: The scan tool displays a 4 digit number which indicates the calibration ID number of the module.

Invalid Transmitter: The scan tool displays More Than 10 or Less Than 10 which indicates how many times an invalid transmitter has been used in the vicinity of the vehicle.

Key Fob 1 Low Voltage: The scan tool displays counts

Key Fob 1 Battery Statu: The scan tool displays

Key Fob 2 Low Voltage: The scan tool displays counts

Key Fob 2 Battery Statu: The scan tool displays

Key Fob 3 Low Voltage: The scan tool displays counts

Key Fob 3 Battery Statu: The scan tool displays

Key Fob 4 Low Voltage: The scan tool displays counts

Key Fob 4 Battery Statu: The scan tool displays

Key Pressed on Fob: The scan tool displays Dr. Door Unlock, Door Lock, All Door Unlock, Trunk, or Fuel Door/Alarm which indicates which keyless entry transmitter button was last pressed to operate the keyless entry system.

Last Fob Used: The scan tool displays Fob#1-Fob#4 which indicates the number of the last keyless entry transmitter used.

PROM ID: The scan tool displays a 4 digit number which indicates the ID number of the PROM associated with the module.