GM Service Manual Online
For 1990-2009 cars only
Ignition Voltage: Displays the ignition voltage.

Ignition Status: Displays the ignition status.

Ignition Accessory: Displays the status of the accessory relay.

Accessory Relay Command: Displays the commanded status of the accessory relay.

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 lock relay.

Passenger Window UP Switch: Displays the status of the window up switch.

Passenger Window Down Switch: Displays the status of the window down switch.

Passenger Window Down Relay: Displays the status of the window down 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 lock relay.

Driver Window Up Switch: Displays the status of the window up switch.

Driver Window Down Switch: Displays the status of the window down switch.

Driver Window Down Relay: Displays the status of the window down relay.