ENTRY AND START SYSTEM(for Start Function) SYSTEM DIAGRAM

A001QATE03
A001OZLE02
*1 No. 1 Indoor Electrical Key Antenna Assembly (Front Floor)
*2 No. 3 Indoor Electrical Key Antenna Assembly (Inside Luggage Compartment)
*3 No. 2 Indoor Electrical Key Antenna Assembly (Rear Floor)
*4 Certification ECU (Smart Key ECU Assembly)
A001QU5E02
Component Outline

Power switch


  • Transponder key amplifier

  • Turns on the power and starts the hybrid control system.

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

  • Changes the power source mode in 4 stages (off, on (ACC), on (IG), on (READY)) in accordance with the shift state and stop light switch.

  • Controls the push-button start function in accordance with signals received from switches and ECUs.

  • Performs key verification.

  • Controls each electrical key antenna (outside), electrical key antenna (indoor) and door lock/unlock sensor.

  • Permits the steering lock ECU (steering lock actuator or upper bracket assembly) to supply power to activate the motor. The certification ECU (smart key ECU assembly) permit starting of the hybrid control system after receiving an unlock signal from the steering lock ECU (steering lock actuator or upper bracket assembly).

  • Outputs steering lock ECU (steering lock actuator or upper bracket assembly) lock/unlock command signals.

  • Outputs immobiliser set/unset commands.

  • Forms the entry and start system detection area.
Hybrid vehicle control ECU Outputs a signal indicating that the hybrid control system has started to the certification ECU (smart key ECU assembly) when starting the hybrid control system.
ID code box (immobiliser code ECU)

  • Receives command signals from the certification ECU (smart key ECU assembly) and outputs immobiliser set and unset command signals to hybrid vehicle control ECU assembly.

  • Records codes for smart verification.
Steering lock ECU (steering lock actuator or upper bracket assembly)

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

  • Records codes for smart verification.
Combination meter assembly

  • Displays various warnings (messages on the multi-information display) according to the command signals from the certification ECU (smart key ECU assembly).

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

  • 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 assembly) and forms the vehicle interior detection area.
Electrical key transmitter sub-assembly Sends an ID code upon receiving a request signal.
Shift lock control unit assembly Outputs a shift lock control ECU signal to the certification ECU (smart key ECU assembly).
Electrical key and TPMS receiver assembly Receives the entry and start system code/wireless code sent from the electrical key transmitter subassembly and sends it to the certification ECU (smart key ECU assembly).