GM Service Manual Online
For 1990-2009 cars only
Commanded Gen: The scan tool displays Disabled until the generator is commanded ON by the PCM.

Generator L Terminal: The scan tool displays Disabled until the generator is commanded ON by the PCM.

Commanded Starter: The scan tool displays Disabled until the generator is commanded ON by the PCM.

Starter Enabled Relay: The scan tool displays OK unless there is an open on the coil side of the relay, then fault is displayed.

Starter Inhibit: The scan tool displays No unless the vehicle theft device has been activated.

VTD Fuel Disabled: The scan tool displays No unless the vehicle theft device has been activated.