POWER DOOR LOCK CONTROL SYSTEM > SYSTEM DESCRIPTION

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POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION

The power door lock system locks/unlocks all the doors at once.
The master switch and the door control switch on the passenger door send "lock/unlock" request signals to the body ECU. Then, the body ECU sends these requests to the lock motors in each door to lock/unlock all the doors at once in response to the inputs. (The BEAN is used when the master switch sends request signals to the body ECU.)

FUNCTION OF MAIN COMPONENTS

Components	Function
Multiplex network master switch	Door control switch on master switch assembly locks/unlocks all doors.
Door control switch	Door control switch on passenger side door locks/unlocks all doors.
Door courtesy switch	Placed on each door. Detects door status (open or closed) and outputs data to body ECU. Turns on when door is open and turns off when door is closed.
Driver side door lock	Built-in motor locks/unlocks door. Built-in door control switch (key-linked) detects door status (locked or unlocked) by key operation and outputs data to body ECU. Built-in position switch detects door status (locked or unlocked) and outputs data to body ECU. This switch turns off when door is locked and turns on when door is unlocked.
Passenger side door lock and rear LH and RH door locks	Built-in motor locks/unlocks door. Built-in position switch detects door status (locked or unlocked) and outputs data to body ECU. This switch turns off when door is locked and turns on when door is unlocked.
Back door lock	Built-in courtesy switch detects door status (open or closed) and outputs data to body ECU and power back door ECU*. Turns on when door is open and turns off when door is closed.

HINT:

*: w/ Power back door system

SYSTEM FUNCTION

This system is controlled by the body ECU. The body ECU outputs signals to each door lock motor. The door lock control system in the RX400h has the following functions:

Function
Outline
Manual lock and unlock
This function can lock or unlock all doors by the door lock control switch operation.
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.
Key confine prevention function
When the key is inserted in the ignition key cylinder with the driver's door open and if you perform the door lock operation, all the doors will be unlocked.
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.
Ignition switch-linked automatic door unlock
When the driver's door is closed, by turning the ignition switch from ON position to off and opening the driver's door within 10 seconds, all the doors will be automatically unlocked.
Collision door lock release
If the SRS airbag system has been deployed, and the body ECU has detected the signal that is output by the airbag sensor assembly, the body ECU unlocks all the doors.

w/ DOUBLE LOCKING SYSTEM

DOUBLE LOCKING SYSTEM DESCRIPTION

The double locking system prevents the door from being unlocked from inside the vehicle.
1. Each side door has a motor for the double locking system in addition to the door lock motor. The back door does not have the double locking system.
2. Close all doors including the back door and press the LOCK switch on the transmitter twice within 5 seconds. The double locking system is set to ON.
3. The transmitter switch sends a request signal to the body ECU via the wireless receiver and the body ECU output the double lock ECU. In response to this request, the double lock ECU activates the double locking system motor to disengage the lever, thus preventing the doors from being unlocked when you try to unlock the doors using the door lock knob inside the vehicle.
4. Press the UNLOCK switch on the transmitter once. The double locking system is set to OFF as well as the doors are unlocked.
  NOTICE:
  Make sure that no one is inside the vehicle when you set the double locking system to ON, because the doors cannot be unlocked from the interior while the system is ON.

Function	Outline
Manual lock and unlock	This function can lock or unlock all doors by the door lock control switch operation.
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.
Key confine prevention function	When the key is inserted in the ignition key cylinder with the driver's door open and if you perform the door lock operation, all the doors will be unlocked.
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.
Ignition switch-linked automatic door unlock	When the driver's door is closed, by turning the ignition switch from ON position to off and opening the driver's door within 10 seconds, all the doors will be automatically unlocked.
Collision door lock release	If the SRS airbag system has been deployed, and the body ECU has detected the signal that is output by the airbag sensor assembly, the body ECU unlocks all the doors.