System Description

WARNING: This page is about a different car, the 2008 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

WIRELESS DOOR CONTROL SYSTEM DESCRIPTION
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 multiplex network body ECU operates the door lock control. A serial data link is provided for communication between the door control receiver and the multiplex network body ECU.
- A key-holder type transmitter is used and it contains the following 4 switches: the door lock switch, door unlock switch, trunk open switch and panic switch.

SYSTEM FUNCTION

The wireless door lock control system has the following functions:

WIRELESS DOOR LOCK CONTROL FUNCTION

Function	Outline
All door lock operation	Pressing LOCK switch locks all doors.
All doors unlock operation (2-step unlock operation)	Pressing UNLOCK switch once will unlock driver side door. Pressing UNLOCK switch again within 3 seconds will unlock remaining doors.
Trunk open operation	Holding TRUNK OPEN switch for 2 seconds opens luggage compartment door (trunk).
Answer-back operation	Hazard warning lights flash once when doors are locked, and flash twice when doors are unlocked. These flashes inform that operation has been completed. Wireless door lock buzzer sounds once when doors are locked, and sounds twice when doors are unlocked. These buzzer sounds inform that operation has been completed.
Panic alarm operation	Holding down PANIC switch sets off theft deterrent alarm, which consists of sounding horn, 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 door lock remote control, all doors will lock again automatically.
Repeat function	If a door is not locked in response to locking operation of transmitter, multiplex network body ECU will output lock signal after 2 seconds.
Illuminated entry function	With all doors locked, pressing UNLOCK switch causes room light to illuminate simultaneously with unlocking operation.
Security function	Sends signal as rolling code.
Door ajar warning function	With door open or ajar, pressing LOCK switch causes wireless door lock buzzer to sound for about 10 seconds.
Transmitter recognition code registration function	Enables registering (writing and storing) of 4 types of transmitter recognition codes in EERPOM, which is built into multiplex network body ECU.
Self-diagnosis	If system has malfunction, multiplex network body ECU sets DTC in its memory.