Description of Keyless Start System Parts and Functions

Precautions: Precautions for Diagnosing Trouble · Precautions for Replacing Remote Controller · Precautions for Remote Controller Disposal · Precautions for Replacing Keyless Start Control Module · Precautions for Control Systems · General safety (00)

Reference: Keyless Start System Component Location

Part	Construction / Function
Keyless start control module	Installed on underside of instrument panel at right side. Transmits information through CAN communication between ECM, BCM, and combination meter, etc. Monitors status of each request switch, door switch and engine switch. Makes requests for locking and unlocking doors, starting engine, and releasing steering lock.
Remote controller	Receives request signal from each antenna. Transmits ID code and request signal to keyless start control module. Also includes the following equipment and functions. •Operation indicator light •When ignition mode is “ON”, if battery voltage falls, transmits signal to keyless start control module to indicate remote controller battery is running down and displays “KEY FOB LOW BATTERY” in information display to alert driver to replace battery. •Emergency key to lock or unlock doors when keyless start system does not operate because of run-down battery, etc. •Lock / unlock buttons to lock or unlock doors using keyless entry system function.
Engine switch	Located on instrument panel at driver side. Includes push switch that detects operation status.
Driver side outside antenna	Included in outside door handle. Transmits request signals to remote controller outside vehicle.
Passenger side outside antenna
Rear outside antenna	Located in back side of back panel. Transmits request signals to remote controller outside vehicle.
Mid inside antenna	Located in center console box. Transmits request signals to remote controller inside vehicle.
Rear inside antenna	Located on back side of tail end trim. Transmits request signals to remote controller in luggage compartment.
Driver door request switch	Located on each outside door handle. Transmits ON/OFF information from each door request switch to keyless start control module.
Passenger door request switch
Rear end door request switch	Located in rear end door. Transmits ON/OFF information from rear end door request switch to keyless start control module.
Each door switch	Transmits open / close information from each door to keyless start control module.
Rear end door switch	Included in rear end door latch. Transmits open / close information from rear end door to keyless start control module.
Steering lock unit	Located in steering column. Releases or locks steering lock. Includes unlock detection switch and lock detection switch which detect steering lock status. Outputs status to keyless start control module through serial communication.
Immobilizer indicator light	Located in combination meter. Goes out if ID code of remote controller matches when engine switch is pushed. Lights up if remote controller cannot be detected when engine switch is pushed. Lights up or blinks when system malfunction has occurred.
Theft deterrent light	Located in hazard warning switch. Lights up or blinks when security alarm is set or system malfunction has occurred.
Information display	Located in combination meter. Alerts driver by displaying messages.
ACC relay	Located in J/B. Switch ignition mode under control by keyless start control module.
IG1 relay
IG2 relay
Starting motor control relay	Located in relay box. Turns ON and supplies power to starting motor when keyless start control module determines that engine starting is possible.
CPP switch (M/T model)	Located on clutch pedal. Transmits operation information from clutch pedal to keyless start control module.
P position switch (A/T model / twin clutch system model)	Located in select lever. Transmits P range information from select lever to keyless start control module.
Transmission range sensor (A/T model)	Located in TCM. Transmits shift position information to keyless start control module.
Brake light switch (A/T model / twin clutch system model)	Located on brake pedal. Transmits operation information from brake pedal to keyless start control module.
Outside warning buzzer	Located on outside of cowl side outer member on the driver side. Sounds when alarm or warning function operates.
Driver / passenger door lock switch	Included in both front door lock actuators. Transmits lock / unlock information from driver / passenger door to keyless start control module.
Key cylinder switch	Included in driver door lock actuator. Transmits lock / unlock information from door key cylinder to keyless start control module.
Hood latch switch (if equipped)	This switch is installed on the hood latch. The keyless start control module identifies the open / closed state of the hood according to the signal from this switch.