GM Service Manual Online
For 1990-2009 cars only
Fob 1 Battery: The scan tool displays 0-3 Volts. The scan tool displays the current voltage value of the fob when any button is depressed.

Fob 2 Battery: The scan tool displays 0-3 Volts. The scan tool displays the current voltage value of the fob when any button is depressed.

Fob 3 Battery: The scan tool displays 0-3 Volts. The scan tool displays the current voltage value of the fob when any button is depressed.

Fob 4 Battery: The scan tool displays 0-3 Volts. The scan tool displays the current voltage value of the fob when any button is depressed.

Last Fob Button Pressed: The scan tool displays Lock/Unlock/Panic. The scan tool displays the last input received from the fob.

Fob 1 Programmed: The scan tool displays Yes/No. The scan tool displays Yes when the fob is programmed.

Fob 2 Programmed: The scan tool displays Yes/No. The scan tool displays Yes when the fob is programmed.

Fob 3 Programmed: The scan tool displays Yes/No. The scan tool displays Yes when the fob is programmed.

Fob 4 Programmed: The scan tool displays Yes/No. The scan tool displays Yes when the fob is programmed.