Liftgate / Liftglass Ajar Switch
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
The CTD system uses the liftgate and liftglass ajar switches as a status indicator to activate the alarm. The liftgate / liftglass ajar switch is monitored via a discrete input from the switch. If the BCM receives a ground signal from the ajar switch when the CTD system is armed, the BCM activates the alarm.