PUSH-BUTTON START SYSTEM DIAGRAM

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Component Outline

Engine switch


  • Transponder key amplifier

  • Turns on the power and starts the engine.

  • Contains a built-in transponder key amplifier to start the engine when the key does not operate properly due to a depleted battery or wave interference.
Certification ECU (smart key ECU assembly)

  • Changes the power source mode by operating the ACC and IG relays.

  • Controls starting by operating the starter relay.

  • Performs key verification.

  • Controls the electrical key antenna (indoor).

  • Outputs steering lock actuator assembly lock/unlock command signals.

  • Outputs immobiliser set/unset commands.

  • Forms the vehicle interior detection area.
ID code box (immobiliser code ECU)

  • Receives command signals from the certification ECU (smart key ECU) and outputs immobiliser set and unset command signals to the ECM.

  • Records codes for push-button start verification.
ECM

  • Outputs a signal indicating that the engine has started to the certification ECU (smart key ECU) when starting the engine.
Steering lock ECU (steering lock actuator assembly)

  • Receives command signals from the certification ECU (smart key ECU) and activates the steering lock actuator assembly.

  • Records codes for push-button start verification.
Combination meter assembly

  • Operates various warnings (messages on the multi-information display, sounding of the buzzer in the combination meter, blinking or illumination of the entry warning light) according to the command signals from the certification ECU (smart key ECU).

  • Outputs a vehicle speed signal to the ECUs.
IG, ACC relay Turns on/off according to the certification ECU (smart key ECU) and provides power to each system.
Stop light switch assembly Detects that the brake pedal has been depressed (switch is on) and outputs a signal to the certification ECU (smart key ECU).

No. 1 indoor electrical key antenna assembly (front floor)

No. 2 indoor electrical key antenna assembly (rear floor)

No. 3 indoor electrical key antenna assembly (inside luggage compartment)

 Sends the request code from the certification ECU (smart key ECU) and forms the vehicle interior detection area.
Door control receiver Receives the push-button start code/wireless code sent from the key and sends it to the certification ECU (smart key ECU).
Electrical key transmitter sub-assembly Sends the ID code upon receiving a request signal.