Wireless Door Lock Control 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 multiplex network body ECU controls the door lock. A serial data link is provided for communication between the certification ECU and multiplex network body ECU.
- w/o PANIC switch: A key-integrated type transmitter is used and it contains the following 3 switches: LOCK switch, UNLOCK switch and LUGGAGE switches.
- w/ PANIC switch: A key-integrated type transmitter is used and it contains the following 4 switches: LOCK switch, UNLOCK switch, LUGGAGE switch and PANIC switches.
- An LED is mounted on the transmitter to show if the battery is depleted.
| FUNCTION OF MAIN COMPONENTS |
| Component | Function |
| Door control transmitter |
|
| Door control receiver | Receives weak electric waves (recognition codes and function codes) from door control transmitter, changes waves to code data. |
| Front door courtesy light switch assembly Rear door courtesy light switch assembly | Turns on when door is open and off when door is closed. Outputs door status (open or closed) to multiplex network body ECU |
| Certification ECU | Matches code data with registered code and outputs code data to multiplex network body ECU |
| Door lock position switch | Transmits door lock positions of each door to multiplex network body ECU |
| SYSTEM FUNCTION |
Door lock / unlock function:
With the engine switch off and all door courtesy light switches off, pressing the door control transmitter's LOCK / UNLOCK switch causes the transmitter to output weak electric waves, which are then input to the door control receiver. The door control receiver converts these waves into code data (recognition codes and function codes) in its internal high frequency circuit, and outputs its evaluation results to the multiplex network body ECU. Upon receiving a door lock / unlock request signal, the multiplex network body ECU outputs a door lock / unlock control signal to each door ECU. Each door ECU outputs a door lock/unlock control signal to each door lock motor. Each door lock assembly then locks / unlocks its door and turns on / off its door lock position switch according to the signals.Answer-back function:
The multiplex network body ECU receives the door unlock detection switch's on / off signals and uses these signals to confirm if door control operation has completed. The multiplex network body ECU then outputs a hazard warning light output control signal and the hazard warning lights start flashing.Panic alarm function (w/ PANIC switch):
With the engine switch off or ACC, press and hold the door control transmitter PANIC switch for 1 second or more. The following occurs:1) the multiplex network body ECU activates an interior relay and the security horn sounds, and 2) the alarm control signals of the hazard waning light, vehicle horn, headlights and taillights are sent to each control ECU, starting the theft deterrent alarm.The wireless door lock control system has the following functions.
Function Outline All doors lock function Pressing LOCK switch locks all doors All doors unlock (2-step unlock function) Pressing UNLOCK switch twice within 3 seconds unlocks all doors after driver side door is unlocked Luggage compartment door open function Pressing TRUNK switch for 0.8 seconds or more opens luggage compartment door Power window and sliding roof open function Pressing UNLOCK switch for 0.5 seconds or more opens all power windows Power window and sliding roof close function Pressing LOCK switch 2.5 seconds or more closes all power windows Answer-back function - When doors are locked, hazard warning lights flash once. When doors are unlocked, hazard warning lights flash twice and wireless warning buzzer sounds twice
- When transmitter is used for opening luggage compartment door or power windows, this function causes the buzzer to sound to indicate that operation has been completed
Automatic lock function If no doors are opened within 30 seconds after they are unlocked by wireless door lock remote control, all doors will lock again automatically Door ajar warning function If any door is open or ajar, pressing LOCK switch will cause wireless door buzzer to sound for about 10 seconds Transmitter recognition code registration function Enables 7 modes for registering (writing and storing) transmitter recognition codes in EEPROM Panic alarm function Holding down the PANIC switch for longer than 1 second sets off theft deterrent alarm (security horn sounds, headlights and taillights flash) - When doors are locked, hazard warning lights flash once. When doors are unlocked, hazard warning lights flash twice and wireless warning buzzer sounds twice