GM Service Manual Online
For 1990-2009 cars only

Luggage Compartment Description and Operation Coupe

The rear compartment lid is operated by either the interior or exterior rear compartment lid release switch or the keyless entry system. The rear compartment lid system contains the following components:

    • Body Control Module (BCM)
    • Remote Control Door Lock Receiver
    • Interior Rear Compartment Lid Release Switch
    • Exterior Rear Compartment Lid Release Switch
    • Rear Compartment Lid Pull Down Actuator

The rear compartment lid is operated by the either the interior or exterior rear compartment lid release switch. When either switch is pressed, the trunk release switch signal circuit is switched to ground. When this input is seen, the BCM grounds the trunk release relay control circuit, opening the rear compartment lid. If accessing the rear compartment using the exterior rear compartment lid release switch, a valid keyless entry transmitter is required to be within a 1 meter range of the rear comparment lid release switch. This allows the required keyless access communications to occur between the rear compartment antenna and the keyless entry transmitter. For more information about keyless access, refer to Keyless Entry System Description and Operation .

When the rear compartment lid is open, the trunk ajar switch signal circuit is grounded, providing an ajar input to the BCM.