Circuit/System Description

The rear compartment lid ajar switch is normally open when the trunk is fully closed. When the trunk is open the rear compartment lid ajar switch contact is closed providing a path to ground. When the rear compartment lid ajar switch is closed, the rear compartment lid ajar switch signal to the rear integration module (RIM) is grounded. The RIM reports the switch status by sending a serial data message to the instrument panel cluster (IPC) indicating the trunk ajar status. The IPC displays TRUNK AJAR in the driver information center (DIC).