ENGINE IMMOBILISER SYSTEM SYSTEM DIAGRAM

Certification ECU

Distinguishes and verifies the ID code from the door control receiver and sends signals to the power management control ECU, steering lock ECU, etc. in response to operated functions.

Performs code communication with the ID code box and steering lock ECU when the engine is started.

Power management control ECU

Performs engine start control, steering lock control, etc. together with the certification ECU, steering lock ECU and ID code box via LIN communication.

Controls the indicator light built into the engine switch.

Engine switch

Sends engine switch operation signals to the power management control ECU.

Uses the built-in transponder key amplifier to receive the ID code from the key when the key battery is depleted, and sends the code to the certification ECU.

ID code box

Receives immobiliser set/unset commands from the certification ECU via LIN communication and sends them to the ECM.

ECM

Receives immobiliser unset commands from the ID code box and engine start request signals from the power management control ECU and starts the engine.

Steering lock actuator assembly (steering lock ECU)

Receives a steering lock unlock signal from the certification ECU and unlocks the steering lock.

Security indicator light

Indicates the status of the engine immobiliser system according to certification ECU control.