Electric Steering Lock System Description

Steering. Lexus Gs430, Gs300. Uzs190 Grs190
Steering Column. Lexus Gs430, Gs300. Uzs190 Grs190

  1. DESCRIPTION

  1. FUNCTIONS OF COMPONENTS

Electric Steering Lock -- System Description



DESCRIPTION

  1. The steering lock system locks/unlocks the steering lock by activating the steering lock bar with a motor. The steering lock ECU activates the motor based on signals from the certification ECU and power source control ECU assembly.


FUNCTIONS OF COMPONENTS

  1. The steering lock ECU controls the system based on information from the following components.

    Item
    		Function
    Steering lock actuator assembly
    		Consists of a motor, lock bar, lock/unlock position sensors, etc. Activated by the steering lock ECU.
    Steering lock ECU
    		Included in the steering lock actuator assembly. Activates the steering lock motor based on permission signals from the power source control ECU and certification ECU.
    Detects steering lock/unlock positions and transmits the status to other ECUs.
    Power source control ECU assembly
    		Permits the steering lock ECU to supply power to activate the motor. The power source control ECU and certification ECU permit engine start after receiving an unlock signal from the steering lock ECU.
    Certification ECU
    		Orders the steering lock ECU to lock/unlock the steering lock. The power source control ECU and certification ECU permit engine start after receiving an unlock signal from the steering lock ECU.
    IG2 relay
    		Controlled by the power source control ECU. Sends IG signals to the steering lock ECU.