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Home >> Toyota >> 2009 >> Prius Base >> Repair and Diagnosis >> Electrical >> Body Electrical >> OEM System Circuits >> Wireless Door Lock Control (w/o Smart Key System) >> System Outline
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System Outline

Door lock control (Lock and unlock) and panic control (Theft alarm and flash) is performed by remote control, without the key needing to be inserted in the door key cylinder, using low-power electrical waves emitted from a transmitter.

  1. Normal Operation 

    * Lock operation

    When the lock SW on the transmitter is pressed, all the doors will lock.

    * Unlock operation

    When the unlock SW on the transmitter is pressed once, only the driver door will unlock. When the unlock SW is pressed again within 3 seconds, all the doors will unlock.

  2. Auto Lock Function 

    When the door is not actually opened within 30 seconds after the door has been unlocked by the unlock SW on the transmitter, all the doors will automatically lock.

    If any one of the following conditions is detected, the wireless door lock will not function.

    * Any door is open.

    * The electrical key is inserted in the key slot.

    * The power SW is on

  3. Wireless Door Lock Stop Function 

    If any one of the following conditions is detected, the wireless door lock will not function.

    Lock operation

    * When any door is open (Door courtesy SW on)

    * The electrical key is inserted in the key slot (Unlock warning SW on)

    * The power SW is on

    Unlock operation

    * The power SW is on

    * The electrical key is inserted in the key slot

  4. Visual Confirmation of Lock or Unlock 

    During a lock operation, when the body ECU receives a lock signal from the door lock detection SW, the turn signal lights flash once. During an unlock operation, when the body ECU receives an unlock signal from the door lock detection SW, the turn signal lights flash twice.

  5. Remote Panic Operation 

    The panic operation will function regardless of if the doors are locked or unlocked, open or closed. When the panic button (Transmitter) is pushed once, the interior lights will light up, and theft alarm and horn will sound and the turn signal lights, headlights and taillights will flash. Then, if any one of the buttons (Transmitter) is pushed once again, the interior lights will turn off, and the sounding and flashing will stop. The panic operation will not function when power SW is on.

  6. Repeat Function 

    If the lock detection signal is not received after the body ECU has output the lock signal, the lock signal will be output again.

  7. Illuminated Entry Function 

    When the body ECU detects that the doors are unlocked after the unlock operation has been made, it will light up the key slot, overhead J/B and interior light for approx. 15 sec. If all the doors are locked during this time, the lighting will be cancelled and the lights will immediately fade out.