Lexus IS250 IS220d GSE20 ALE20 - DOOR LOCK
POWER DOOR LOCK CONTROL SYSTEM - SYSTEM DESCRIPTION
| POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION |
The power door lock system locks/unlocks all the doors.
The master switch and the door control switch on the passenger door send "lock/unlock" request signals to the main body ECU RH. Then, the main body ECU RH sends these request signals 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 main body ECU RH.)
Operating the driver's door lock using a mechanical key sends request signals to lock/unlock the doors to the main body ECU RH via the master switch. "2-step unlock function" is optional for unlocking procedures of the key-linked lock for the driver side door.
| FUNCTION OF MAIN COMPONENT |
| Components | Function |
| Multiplex network master switch assembly | 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 main body ECU RH. 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 key operation's door status (locked or unlocked) and outputs data to main body ECU RH. Built-in position switch detects door status (locked or unlocked) and outputs data to main body ECU RH. 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 main body ECU RH. This switch turns off when door is locked and turns on when door is unlocked. |
| Double locking system | 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 either from the inside or the outside of the vehicle. To lock the doors with this system, pressing the transmitter's LOCK switch, then pressing it again within 5 seconds activates the double locking system. However, as an emergency unlocking maneuver, only the driver's door can be unlocked with a key.
|
| SYSTEM FUNCTION |
- HINT:
- The following functions' default settings are ON. Some of these functions can be customized .
This system is controlled by the main body ECU RH. The main body ECU RH outputs signals to each door lock motor. The door lock control system of the IS250 has the following functions:
| Function | Outline |
| Manual lock and unlock function | 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 mechanical key cylinder, can lock or unlock all the doors when a lock or unlock operation is effected. |
| Manual unlock prohibition function | Performing the door lock operation with an electrical key or a mechanical key will prohibit the unlock operation by the door lock control switch. |
| Key lock-in prevention function (Electrical key) | If a door lock operation is performed when the electrical key is in the cabin, all the doors will be unlocked. |
| Shift-linked automatic door lock function (A/T) | When the conditions listed below are met consecutively, this function causes all the doors to be automatically locked. The engine switch is on (IG). All doors are closed. The shift lever is moved out of the P position. Any of the doors are unlocked. |
| Speed-sensitive automatic door lock function | When the conditions listed below are met consecutively, this function causes all the doors to be automatically locked. Vehicle speed is higher than approximately 20 km/h (13 mph). All doors are closed. Any one of the door is unlocked. |
| Shift-linked automatic door unlock function (A/T) | When the engine switch is on (IG), if moving the shift lever to the P position from any other position , all the doors will be automatically unlocked. |
| Collision door lock release function | If the SRS airbag system has been deployed, and the main body ECU RH has detected the signal that is output by the airbag sensor assembly, the main body ECU RH unlocks all the doors. |
| One-motion open | When the door is locked, this function enables the door to be unlocked by memory pulling the inside handle of the door. |
| 2-step unlock function | This function is provided to unlock the driver's door by turning the key cylinder first and to unlock remaining doors by turning it the seconds time. |
| Opening driver's door-linked automatic door unlock | All doors are unlocked automatically when the driver's door is opened within 10 seconds after the power source is changed from "IG-ON) to the "ACC" or "OFF". |
| DOUBLE LOCKING SYSTEM DESCRIPTION |
The double locking system prevents the door from being unlocked from inside the vehicle.
Each side door has a motor for the double locking system in addition to the door lock motor.
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.
The transmitter switch sends a request signal to the main body ECU RH via the wireless receiver and the main body ECU RH 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.
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.