WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Entry and Start System) SYSTEM DESCRIPTION

This system locks/unlocks the doors remotely. The wireless door lock control system has the following features:

• The certification ECU performs the code identification process and the main body ECU controls the door locks. A serial data link is provided for communication between the certification ECU and main body ECU.

• A key-integrated type transmitter is used and it contains the following 2 switches: the lock switch and unlock switch.

• An LED is mounted on the transmitter to show if the battery is depleted.

1. FUNCTION OF MAIN COMPONENTS

   Component	Function
   Door control transmitter	Contains lock and unlock switches. Transmits weak electric waves (recognition codes and function codes) to door control receiver. Illuminates indicator light (LED) during transmission.
   Door control receiver	Receives weak electric waves (recognition codes and function codes) from door control transmitter via electrical key antenna and changes waves to code data.
   Front door courtesy light switch Rear door courtesy light switch Back door courtesy light switch	Turns on when door is opened and off when door is closed. Outputs door status (open or closed) to main body ECU.
   Door lock position switch	Transmits door lock positions of each door to main body ECU.
   Wireless door lock buzzer	Sounds when door ajar warning function is operating.
   Certification ECU	Matches code data with registered code and outputs code data to main body ECU.

2. SYSTEM FUNCTION

   1. The wireless door lock control system has the following functions:

      Function	Outline
      All door lock function	Pressing the lock switch locks all the doors.
      All door unlock function	Pressing the unlock switch unlocks all the doors.
      Chattering prevention function	If a switch is pressed, the corresponding switch operation is performed once. If a switch is held down, the corresponding switch operation occurs only once and does not repeatedly activate. When pressing a switch at 1 second intervals, the corresponding operation activates once for every press of the switch.
      Answer-back function	When the doors are locked, the hazard warning lights and side turn signal lights flash once. When the doors are unlocked, the hazard warning lights and side turn signal lights flash twice.
      Automatic lock function	If no doors are opened within 30 seconds after they are unlocked by the door control transmitter, all the doors lock again automatically.
      Fail-safe function	When the key is in the vehicle, the doors cannot be locked by the lock switch.
      Illuminated entry function	When the map light DOOR switch is on and all the doors are locked, pressing the unlock switch causes the dome light (map light and No. 1 room light) illumination to turn on and all the doors to unlock simultaneously. If the doors have not been opened, the dome light (map light and No. 1 room light) turns off after approximately 15 seconds.
      Door ajar warning function	If any door is open or ajar, pressing the lock switch causes the wireless door lock buzzer to sound for approximately 5 seconds.
      Transmitter recognition code registration function	Enables 7 modes for registering (writing and storing) transmitter recognition codes in the EEPROM.