GM Service Manual Online
For 1990-2009 cars only
Passenger Door Status: Displays the status of the door.

Passenger Door Unlock Input: Displays the status of the door unlock input.

Passenger Door Unlock Relay: Displays the status of the door unlock relay.

Driver Door Status: Displays the status of the door.

Driver Door Unlock: Displays the status of the door unlock input.

Driver Door Unlock Relay: Displays the status of the door unlock relay.

Key FOB Response: Displays the key number of the key last used.

Last Key Pressed on FOB: Displays the action requested by the key fob.

Key Read Status: Displays the validity of the key being read.