POWER DOOR LOCK CONTROL SYSTEM

FUNCTION OF MAIN COMPONENTS

The main components in the power door lock control system have the following functions:

Component		Function
Door Lock Assembly	Driver Key-linked Door Lock Switch*1	Sends a lock or unlock request signal to the main body ECU by the mechanical key2 or ignition key3.
	Door Lock Motor	Drives the motor in response to signals from the main body ECU and locks or unlocks the doors.
	Lock Position Switch	Detects whether the doors are locked or unlocked and sends this information to the main body ECU.
	Double Lock Motor*4	Drives the motor by signals from the double lock door control relay assembly and activates or cancels the double locking system.
	Double Lock Position Switch*4	Detects the operating conditions of the double lock motor and sends this information to the double lock door control relay assembly.
Back Door Lock Assembly	Door Lock Motor	Drives the motor in response to signals from the main body ECU and locks or unlocks the back door.
Back Door Lock Assembly	Lock Position Switch	Detects whether the back door is locked or unlocked and sends this information to the main body ECU.
Door Courtesy Light Switch Assembly		Detects whether the doors are open or closed and sends this information to the main body ECU.
Back Door Courtesy Light Switch Assembly		Detects whether the back door is open or closed and sends this information to the main body ECU.
Back Window Lock Assembly*5	Glass Hatch Courtesy Switch	Detects whether the glass hatch is open or closed and sends this information to the main body ECU.
Multiplex Network Master Switch Assembly - Door Control Switch		Sends manual lock and unlock request signals to the main body ECU.
Key Unlock Warning Switch*3		Detects whether or not the ignition key is inserted into the ignition key cylinder and sends this information to the main body ECU.
Double Lock Door Control Relay Assembly*4		Drives the double lock motor by means of the signals from the main body ECU, lock position switch and so on.
Park/Neutral Position Switch Assembly*6		Detects the shift position and sends this information to the main body ECU via the ECM.
Door Control Battery*7		Supplies power to the door lock control system when the battery is damaged due to a collision.
Speed Sensor		Sends wheel speed information to the combination meter assembly via the skid control ECU.
Main Body ECU (Driver Side Junction Block Assembly)		Drives all door lock motors in response to signals. Sends an operation request signal to the double lock door control relay assembly in response to each signal.*4
Center Airbag Sensor Assembly		Detects collisions using the built-in deceleration sensor and signals from each airbag sensor, and sends this information to the main body ECU.
Combination Meter Assembly		Receives signals from the speed sensor and sends the vehicle speed signal to the main body ECU.

*1: Driver side

*2: Models with entry and start system

*3: Models without entry and start system

*4: Models with double locking system

*5: Models with glass hatch opener system

*6: Models with automatic transmission

*7: Models with door control battery

FUNCTION

The power door lock control system has the following functions:

Function*1	Outline
Manual Lock and Unlock	This function can lock or unlock all doors by operation of the door control switch.
Key-linked Lock and Unlock*2	This function, linked with the driver door key cylinder, can lock or unlock all the doors when a lock or unlock operation is performed.
Key-linked 2-step Unlock*2	When the mechanical key is inserted into the door lock cylinder and is turned once, the driver door is unlocked. Then, when the key is turned again, the rest of the doors are unlocked.
Manual Unlock Prohibition	When the doors are all closed and are locked using a key linked operation, wireless remote operation or entry lock operation*3, unlocking the vehicle using the door control switch is prohibited.
Opening Driver's Door Linked Automatic Door Unlock	All doors are unlocked automatically when the driver door is opened within 43 seconds after the ignition switch is turned from ON to ACC or off.
Shift-linked Automatic Door Lock*4	This function causes all the doors to be automatically locked. The ignition switch is turned from off or ACC to ON. The engine is running. All the doors are closed. The shift position is changed from the P to a position other than P. Any one of the doors is in an unlocked state.
Shift-linked Automatic Door Unlock*4	When the ignition switch is ON and the shift lever is moved to P from any position, all of the doors will be automatically unlocked.
Speed Sensitive Automatic Door Lock*5	After the ignition switch has been turned to ON with any of the doors unlocked, this function automatically locks all the doors once the vehicle speed reaches approximately 20 km/h (13 mph) or more. After this function has operated, it will not operate again until either of the following conditions is met: Any of the doors are opened after the vehicle has stopped. The ignition switch is turned off after the vehicle has stopped.
Collision Door Lock Release*5	If the SRS airbag system has been activated, and the main body ECU has detected the activation signal output by the center airbag sensor assembly, the main body ECU unlocks all the doors.
Key Confinement Prevention	When the key is inserted in the ignition key cylinder and the door lock operation is performed while the driver door is open, all the doors will be unlocked.6 When the electrical key transmitter sub-assembly is inserted in the interior actuation area and the door lock operation is performed while the driver door is open, all the doors will be unlocked.3
Double Locking System*7	The double locking system also prevents the doors from being opened through the operation of the inside door knobs. Thus, the doors cannot be opened from either inside or outside of the vehicle. Pressing the lock button on the transmitter once then pressing it again within 5 seconds activates the double locking system. However, as an emergency unlocking maneuver, only the driver door can be unlocked with a key. Note Never activate the double locking system when there are people in the vehicle because the doors cannot be opened from the inside of the vehicle. If the doors have been locked by accident, press the unlock button of the transmitter.
Customization	The on or off setting of some functions and settings can be performed using the Global Techstream (GTS) or multi-display. In addition, some functions are not available depending on the specification. For details, refer to the Repair Manual.

Tech Tips

*1: The default setting differs depending on the model.

*2: The function can be set to unlock all the doors after 1 or 2 key-linked unlock operations for the driver side by using the customization function.

*3: Models with entry and start system

*4: Models with automatic transmission

*5: Models with speed sensitive automatic door lock function

*6: Models without entry and start system

*7: Models with double locking system

CONSTRUCTION

Door Control Battery (Models with Door Control Battery)
1. A door control battery is provided, which supplies power to the door lock control system when the battery is damaged due to a collision.

OPERATION

Door Control Battery (Models with Door Control Battery)
1. The door control battery charges completely within approximately 90 seconds after the ignition switch is turned ON. Also, the battery finishes discharging through self-discharge approximately 30 minutes after the ignition switch is turned off.
2. The charged door control battery is used as a redundant power supply to supply power to the main body ECU and door lock/unlock relay in order to enable the impact detection door lock release even when the battery becomes disconnected due to a collision.
3. Even when the door control battery is not charged (the ignition switch is off), the door control battery always supplies power to the main body ECU and door lock/unlock relay.