System Description

ENGINE HOOD / DOOR: LUGGAGE COMPARTMENT DOOR CLOSER SYSTEM: SYSTEM DESCRIPTION

1. GENERAL

* A signal actuator performs opener and closer functions and is located in the luggage compartment door closer assembly. The closer function automatically closes the luggage compartment door entirely even if only a light pressure is applied to close the luggage compartment door.

* The closer operation is canceled and the luggage compartment door opener operates in the following situations: 1) while the closer is operating, the luggage compartment door opener switch or the key's LUGGAGE switch is pushed, or 2) the luggage compartment door key cylinder is turned.

* This system is controlled by the rear junction block ECU. In accordance with the signals received from the switches, the ECU controls the closer function by actuating the closer motor in order to turn the latch.

2. FUNCTION OF MAIN COMPONENTS

The luggage compartment door closer system mainly consists of a luggage compartment door closer and the rear junction block ECU. The luggage compartment door closer contains switches and a motor. The system has the functions listed below.





3. CONSTRUCTION AND OPERATION

(a) Luggage Compartment Door Closer Assembly:

* The luggage compartment door lock is mounted on the luggage compartment door and consists mainly of a link mechanism and a closer motor. It provides two functions: the closer function to automatically close the luggage compartment door, and the opener function to disengage the striker from the luggage compartment door latch.

* The luggage compartment door lock contains 1 courtesy light switch and position detection switch in the closer motor.

(b) Rear Junction Block ECU:

(1) General

* In the closer mode, this system operates as follows: when the state of the luggage compartment door changes from open to ajar, the signal from the courtesy light switch changes from ON to OFF. Upon receiving this signal, the ECU actuates the motor in order to push and turn the latch via the link mechanism. As a result, the latch engages with the pole portion of the striker in order to fully close the luggage compartment door.

(2) Operation

* The timing chart below shows the basic operation of the luggage compartment door closer system.





(3) Fail-safe

* If a system malfunction is detected by the rear junction block ECU, the ECU stops the system. However, even if the system is deactivated, the luggage compartment door can be opened and closed manually.