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HOMESERVICE MANUALSTOYOTA2007HIGHLANDER HYBRID, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSDOOR LOCK (HYBRID)WIRELESS DOOR LOCK CONTROL SYSTEMSYSTEM DESCRIPTION
2007 Toyota Highlander Hybrid, FWD

System Description

2007 Toyota Highlander Hybrid, FWDSECTION System Description
  1. WIRELESS DOOR LOCK CONTROL SYSTEM 

    The wireless door lock control system functions to lock and unlock all the doors from a distance. The system is controlled by a hand-held transmitter which sends radio waves to the door control receiver. The multiplex network body ECU performs an ID code identification process and engages the door lock control.

  2. FUNCTION OF MAIN COMPONENTS 
    MAIN COMPONENTS FUNCTION

    Component Function
    Door control transmitter
    • Has LOCK, UNLOCK and PANIC switches.
    • Transmits weak radio waves (recognition codes and function codes) to the door control receiver.
    Door control receiver Receives weak radio waves (recognition codes and function codes) and outputs them as code data to the multiplex network body ECU.
    • Front door courtesy light switch
    • Rear door courtesy light switch
    • Back door courtesy light switch
    		 Turns on when a door is opened and turns off when it is closed. Outputs door status codes (open or closed) to the multiplex network body ECU.
    Unlock warning switch Detects if the key is inserted in the ignition key cylinder or not.
    Door lock position switch Transmits the door lock positions of each door to the multiplex network body ECU.
    Wireless door lock buzzer Emits beep (answer back) when doors are locked or unlocked.
    Multiplex network body ECU Sends wireless door lock control signals in response to the code data from the door control receiver and signals from each switch.
  3. SYSTEM FUNCTION 

    The door control transmitter has LOCK, UNLOCK and PANIC switches. Operating these switches activates each function.

    The wireless door lock control system has the following functions:

    SYSTEM FUNCTION

    Function Operation
    All door lock Pressing LOCK locks all doors.
    All door unlock (2-step unlock) Pressing UNLOCK once unlocks the driver's door, and pressing it again within 3 seconds unlocks all the doors.
    Panic alarm Pressing PANIC for longer than about 0.8 seconds causes the following alarms to activate:
    • Sounds the vehicle horn and security horn.
    • Flashes the hazard warning lights, headlights, and taillights.
    • Illuminates the interior light when the switch is in the DOOR position.
    Automatic lock If none of the doors is opened within 30 seconds after they are unlocked by the wireless door lock control, all the doors will lock again automatically.
    Door ajar warning If any door is open or ajar, pressing LOCK will cause the wireless door lock buzzer to sound for about 10 seconds.
    Illuminated entry When all the doors are locked, pressing UNLOCK causes the interior lights to come on simultaneously with the unlock operation.
    Repeat If a door is not locked in response to the locking operation of the transmitter, the body ECU will output a lock signal after 1 second.
    Answer back
    • The hazard warning lights flash once when locking, and flash twice when unlocking, to indicate that the operation has been completed.
    • When the transmitter is used to lock or unlock the doors, the wireless door lock buzzer will sound to indicate that the operation has been completed.
    Security Sends an operation signal as a rolling code.
    Self-diagnostic mode The following are ways to enter the self-diagnostic mode.
    • If the door control receiver receives normal radio waves from the door control transmitter when the system is in diagnostic mode, it sounds the wireless door lock buzzer in a normal pattern that corresponds to the function of each switch.
    • Short terminals TC and CG of the DLC3 with the SST check wire.
    • Read DTCs with the intelligent tester.
    Buzzer cancel The wireless door lock buzzer can be turned ON/OFF by operating the ignition switch or any of the door control transmitter switches.
    Transmitter recognition code registration Enables the registration (writing and storing) of 4 types of transmitter recognition codes in the EEPROM that is contained in the body ECU.
  4. TRANSMITTER RECOGNITION CODE REGISTRATION FUNCTION 

    The table below shows the 4 ID registration function modes by which up to 4 different codes can be registered. The codes are electronically registered (written and stored) in the EEPROM that is contained in the multiplex network body ECU.

    MODE FUNCTION

    Mode Function
    Add mode Adds a newly received code while preserving any previously registered codes. The mode is used when adding a new transmitter. If the number of codes exceeds 4, the oldest registered code is erased first.
    Rewrite mode Erases all previously registered codes and registers only newly input codes.
    Confirmation mode Confirms how many codes are currently registered. When adding a new code, this mode is used to check how many codes already exist.
    Prohibition mode Deletes all the registered codes and disables the wireless door lock function. This mode is used when the transmitter is lost.
  5. OPERATION OF INTERLOCK FUNCTION 
    1. Lock operation is not available when:
      • Any of the doors is open.
      • The key is inserted in the ignition switch.
      • The ignition switch is in the ON position.
    2. Unlock operation is not available when:
      • The ignition switch is in the ON position.
    3. Panic operation is not available when:
      • The ignition switch is in the ON position.
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