The rear compartment lid can be released by operating the interior rear compartment lid release switch, pressing the exterior rear compartment lid release switch, or pressing the rear compartment release button on the key fob.

When the rear compartment lid release is operated, battery voltage is switched to the rear compartment lid release actuator.

Rear Compartment Lid Release System Components

The rear compartment lid release system consists of the following components:

The RIM is the logic owner for the rear compartment lid release system. The decisions required to allow a rear compartment lid release are made in the RIM and it sends the request to release the lid. Other modules associated with this system are only used to report switch status or to operate the relay that controls the actuator according to requests from the RIM.

When the rear compartment lid release switch is operated, the DDSA detects the rear compartment lid release switch signal circuit connected to ground and sends a serial data message indicating the request has occurred.

The RIM, when requested by a serial data message, will ground the trunk release relay control circuit. This energizes the coil and operates the trunk release relay. The relay then feeds positive voltage to the rear compartment lid release actuator.

Indicator Operation

When the trunk is ajar the rear compartment lid ajar switch is closed. This grounds the rear compartment lid ajar switch signal circuit to the RIM. The RIM then reports the switch status with a serial data message. The message is read by the Radio and a TRUNK OPEN message is displayed.