BODY ELECTRICAL - SMART KEY SYSTEM
BE-91
4. Function of Main Components
Component
Function
Power Switch
Transponder Key Amplifier
Transmits the power switch signal to the main body ECU.
Informs the driver of any power source or system abnormality
through the illumination stage of the indicator light.
Receives the ID code and transmits it to the certification ECU
when the key battery is too weak to respond to the tuner based
on the room oscillators.
Key
Receives the signals from the oscillators and returns the ID code
to the tuner. For details, see page BE-106.
Room Oscillator
Front and Rear
Receives a request signal from the certification ECU and forms
the actuation area in the vehicle interior.
Tuner
Receives the ID code from the key and transmits it to certification
ECU.
Main Body ECU
Switches the power source among four modes (OFF, ACC,
IG-ON, and READY) in accordance with the shift position
and the state of the stop light switch.
Controls the smart key system in accordance with the signals
received from the switches and each ECU.
Certification ECU
Certifies the ID code received from the tuner and transmits the
certification results to the ID code box and steering lock ECU.
Stop Light Switch
Outputs the state of the brake pedal to main body ECU.
ID Code Box
Receives the HV immobilizer disengage/ engage signal from the
certification ECU, certifies that signal, and transmits it to the
THS ECU.
Steering Lock ECU
Receives the steering unlock / lock signal from ID code box, and
activates the steering lock motor.
THS ECU
Receives the THS II start request signal from the main body
ECU, and starts the THS II.
Receives the HV immobilizer disengage / engage signal from
the ID code box, and disengages or engages the HV
immobilizer.
Combination
Multi-information
Display
Informs the driver of malfunctions in the smart key system.
Combination
Meter
Master Warning
Light
Illuminates simultaneously with a buzzer sound to inform the
driver of malfunctions in the smart key system.
Содержание Camry Hybrid AHV40
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