Power Locks: Description and Operation

CENTRAL DOOR LOCKING SYSTEM

The central door locking system operates the door lock actuator to lock or unlock the doors using the operation of the door lock switch built into the front power window (main or sub) switch or key cylinder built into the driver's side door outside handle. The system has the following operations and features.
- All doors can be locked using the door lock switch built into the front power window (main or sub [RH]) switch.
- Insert the key into the driver's key cylinder and turn once to the unlock side to unlock the driver's door. Turn the key once again to the unlock side to unlock all doors.




GENERAL DESCRIPTION CONCERNING THE CENTRAL DOOR "LOCK"ING SYSTEM
The following ECUs affect the functions and control of the central door locking system.

DOOR LOCK FUNCTION




OPERATING THE DRIVER'S DOOR LOCK KEY CYLINDER
When you insert the ignition key to the driver's door lock key cylinder and turn the key clockwise to lock the door, the ETACS-ECU energizes its door lock relay for 0.25 second to activate all the door lock actuators. Then all the doors will be locked.




OPERATING THE DRIVER'S OR FRONT PASSENGER'S DOOR "LOCK" SWITCH
When the door is locked by driver's or front passenger's door lock switch, the ETACS-ECU energizes its door lock relay for 0.25 second to activate all the door lock actuators. Then all the doors will be locked.

DOOR UNLOCK FUNCTION




OPERATING THE DRIVER'S DOOR LOCK KEY CYLINDER
When you insert the ignition key to the driver's door lock key cylinder and turn the key counterclockwise to unlock the door, the ETACS-ECU energizes its door unlock relay for 0.25 second to activate only the driver's door lock actuator. Then only the driver's door will be unlocked. When you turn the key counterclockwise again, the ETACS-ECU energizes its door unlock relay for 0.25 second to activate all the door lock actuator. Then all the doors will be unlocked.




OPERATING THE DRIVER'S OR FRONT PASSENGER'S DOOR "LOCK" SWITCH
When the door is unlocked by driver's or front passenger's door lock switch, the ETACS-ECU energizes its door unlock relay for 0.25 second to activate all the door lock actuators. Then all the doors will be unlocked.