GM Service Manual Online
For 1990-2009 cars only
Arming Status: The scan tool displays Active when the CTD system is armed.

Content Theft Mode: The scan tool displays the current CTD state.

CTD Status: The scan tool displays the current armed status of the CTD.

Door Ajar Switch: The scan tool displays the current status of the passenger door.

Driver Door Ajar Switch: The scan tool displays the current status of the driver door.

Horn Relay Command: The scan tool displays the output state of the horn relay control.

Security Indicator Command: The scan tool displays the state of the BCM commanding the security indicator. The scan tool displays ON or, OFF, as commanded by the BCM.

Trunk Release Status: The scan tool displays the current requested status of the rear compartment lid.