Power Locks: Description and Operation
System OutlineDoor Lock Control System
The door lock control system is controlled by the body ECU.
This system has following features. However, the adopted function differs depending on the establishment.
1. Manual Lock and Unlock Operation
Pressing the power door lock switch on the driver or front passenger door to the lock side will lock all the doors and pressing it to the unlock side will unlock all the doors.
2. Key-Linked Lock and Unlock Function
This function, which is linked with the key cylinder, can lock or unlock all the doors when a lock or unlock operation is effected.
3. Manual Unlock Prohibition Function
Performing the door lock operation with a transmitter or an ignition key will prohibit the unlock operation by the door lock control switch.
4. 2-Step Unlock Function
This function is provided to unlock the driver's door by turning the key cylinder first and unlock passenger's door by turning it the second time.
5. Key Confine Prevention Function
When the key is inserted in the ignition key cylinder and if you perform the door lock operation, all the doors will be unlocked.
6. Shift-Linked Automatic Door Lock
When the conditions listed below are met consecutively, this function causes all the doors to be automatically locked
- The ignition switch is turned from the OFF or ACC position to the ON position.
- All doors are closed.
- The shift lever is moved out of P position.
- Either one of the doors is unlocked.
7. Theft Deterrent System-Linked Door Lock Function
When the body ECU receives the door lock signal from the theft deterrent system, "all doors lock" operation will be performed in spite of the current door lock condition.