GM Service Manual Online
For 1990-2009 cars only
Battery Voltage Signal: The scan tool displays the current system battery voltage.

Last Fob Used: The scan tool indicates the last keyless entry transmitter used to active the keyless entry system.

Fob 1 Programmed: The scan tool displays whether a keyless entry transmitter is currently programmed into the #1 slot.

Fob 1 Function: The scan tool indicates the lasted keyless entry function commanded by the keyless entry transmitter programmed to the #1 slot.

Fob 1 Battery: The scan tool displays the current battery state of the keyless entry transmitter battery as either Low or OK.

Fob 2 Programmed: The scan tool displays whether a keyless entry transmitter is currently programmed into the #2 slot.

Fob 2 Function: The scan tool indicates the lasted keyless entry function commanded by the keyless entry transmitter programmed to the #2 slot.

Fob 2 Battery: The scan tool displays the current battery state of the keyless entry transmitter battery as either Low or OK.

Fob 3 Programmed: The scan tool displays whether a keyless entry transmitter is currently programmed into the #3 slot.

Fob 3 Function: The scan tool indicates the lasted keyless entry function commanded by the keyless entry transmitter programmed to the #3 slot.

Fob 3 Battery: The scan tool displays the current battery state of the keyless entry transmitter battery as either Low or OK.

Fob 4 Programmed: The scan tool displays whether a keyless entry transmitter is currently programmed into the #4 slot.

Fob 4 Function: The scan tool indicates the lasted keyless entry function commanded by the keyless entry transmitter programmed to the #4 slot.

Fob 4 Battery: The scan tool displays the current battery state of the keyless entry transmitter battery as either Low or OK.