System Outline

System Outline

In the door lock system, the respective door ECU controls the door lock motor. When the doors are locked/unlocked by the door lock control SW or the door key lock/unlock SW, the respective door ECU controls the motors through multiplex communication.

1. Auto Lock Function
In case all the doors are closed with the ignition SW at ON, all the doors will be locked when the following conditions are met:
- Shift lever is moved from P position to other positions.
- Any door is unlocked

2. Door Closer System (w/ Door Closer)
When the front and rear door closer system detects that the front and rear doors are ajar, it automatically actuates the motors to fully close the front and rear doors.

Position detection switches are enclosed in the door closer mechanism in each of the front and rear doors lock assemblies to detect whether the front and rear doors are open, closed, or ajar. If a detection signal that indicates that a front and rear doors are ajar is transmitted to the door ECU, the door ECU actuates the operation of the door closer motor in order to fully close the front and rear doors.

In this system, each door is independently controlled by the door ECU that is provided in the respective door. The door ECUs, which maintain communication via the BEAN (Body electronics area network), belong the door bus.