System Description

WIRELESS DOOR LOCK CONTROL SYSTEM
This system locks and unlocks the vehicle's doors remotely. The wireless control system has the following features:
- The door control receiver performs the code identification process and the instrument panel junction block (integration relay) operates the door lock control.
  A serial data link is provided for communication between the receiver and integration relay.
- A key-integrated type transmitter is used and it has a door lock switch, door unlock switch and panic switch.

FUNCTION OF MAIN COMPONENTS

WIRELESS DOOR LOCK CONTROL SYSTEM FUNCTION OF MAIN COMPONENTS CHART

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. Illuminates the indicator light (LED) during transmission.
Door control receiver	Receives weak radio waves (recognition codes and function codes) and outputs them as code data to the integration relay.
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 integration relay.
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 integration relay.
Integration relay	Sends wireless door lock control signals in response to the code data from the door control receiver and signals from each switch.

SYSTEM FUNCTION

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

The wireless door lock control system has the following functions:

WIRELESS DOOR LOCK CONTROL SYSTEM FUNCTION CHART

Function	Operation
All door lock function	Pressing LOCK switch locks all doors when all doors are closed.
All door unlock function (2-step unlock function)	Pressing UNLOCK switch once will unlock driver side door. Pressing UNLOCK switch again within 3 seconds will unlock passenger side door and back door.
Answer-back function	Hazard warning lights flash once when doors are locked, and flash twice when doors are unlocked to indicate that operation has been completed.
Panic alarm function	Holding down PANIC switch sets off theft deterrent alarm, which consists of sounding horn intermittently, illuminating room light and flashing headlights, taillights and hazard warning lights.
Automatic lock function	If no doors are opened within 30 seconds after they are unlocked by wireless operation, all doors will lock again automatically.
Illuminated entry function	With all doors locked, pressing UNLOCK switch causes room lights to illuminate simultaneously with unlocking operation.

TRANSMITTER RECOGNITION CODE REGISTRATION FUNCTION

The table below shows the 4 ID registration function modes by which up to 6 different codes can be registered. The codes are electronically registered (written and stored) in the EEPROM that is contained in the door control receiver.

TRANSMITTER RECOGNITION CODE REGISTRATION FUNCTION MODE CHART

Mode	Function
Add mode	Adds a newly received code while preserving any previously registered codes. This mode is used when adding a new transmitter. If the number of registered 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.

CONDITIONS THAT WIRELESS FUNCTIONS DO NOT OPERATE
1. Lock operation is not available when:
  - Any of the doors is open.
  - The key is inserted in the ignition key cylinder.
2. Unlock operation is not available when:
  - The key is inserted in the ignition key cylinder.