Cruze

Luggage Compartment Description and Operation

Rear Compartment Lid Release Switch

The BCM monitors a voltage signal to the exterior rear compartment lid release switch so that when the switch is pressed, the voltage within the signal circuit is pulled low and in response, the BCM will detect the voltage drop and check the status of the door lock system. If the driver door is locked, the BCM will ignore the exterior rear compartment lid release switch, if the driver door is unlocked, the BCM will recognise the request and will provide voltage to the rear compartment lid relay.

Rear Compartment Lid Latch

When BCM receives a rear compartment lid release command from the exterior rear compartment lid release switch, the BCM applies brief pulse of voltage to the compartment lid release relay control circuit, which energises the coil side of the relay. The switch side of the compartment lid release relay then momentarily closes, supplying a brief pulse of battery positive voltage to the rear compartment lid latch. The rear compartment lid latch is continuously grounded and when it receives the voltage pulse, it will become energised and the latch will activate releasing the boot lid so that the boot lid may be manually raised to an open position.

Keyless Entry Transmitter

The BCM may also get a rear compartment lid release command from the remote keyless entry module. When the boot button is pressed on the keyless entry transmitter, a rear compartment lid release request is sent to the remote keyless entry module, the remote keyless entry module will then send a serial data message to the BCM to command the release of the rear compartment lid.