Operation

CIRCUIT OPERATION
Each door, the liftgate, hood, and the lift glass in the liftgate have an ajar switch that connects to the Body Control Module (BCM). The ajar switches are normally open when the doors, liftgate, lift glass and hood are closed. When one of them open, its ajar switch closes and connects the BCM to ground. In response, if the Vehicle Theft Security System is armed, the BCM starts the alarm. Refer to the Introduction in this section for alarm information.

The BCM receives the ajar switch signals on the following circuits.
- Circuit G75 provides the left front door ajar switch signal
- Circuit G74 provides the right front door ajar switch signal
- Circuit G77 provides the left rear door ajar switch signal
- Circuit G76 provides the right rear door ajar switch signal
- Circuit G78 provides the liftgate ajar and lift glass ajar signals