GM Service Manual Online
For 1990-2009 cars only
Trunk Ajar Switch: The scan tool displays Trunk Closed/Trunk Ajar. The scan tool displays Trunk Ajar when the trunk is open.

Trunk Release Solenoid: The scan tool displays On/Off. The scan tool momentarily displays On when the trunk release solenoid is commanded ON.

Trunk Release Status: The scan tool displays Enabled/Disabled. The scan tool will display the state of the trunk release.

Trunk Release Switch: The scan tool displays Active/Inactive. The scan tool displays active when the trunk release switch is depressed.