Steering Lock System System Description

Steering. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Steering Column. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. DESCRIPTION

  1. FUNCTIONS OF COMPONENTS

  1. WARNING FUNCTION OF ENGINE SWITCH INDICATOR

  1. WARNING FUNCTION OF COMBINATION METER (w/ Multi-Information Display)

Steering Lock System -- System Description



DESCRIPTION

  1. The steering lock system locks and unlocks the steering lock by activating the steering lock bar with a motor. The steering lock ECU activates the motor based on permission signals from the certification ECU and main body ECU.


FUNCTIONS OF COMPONENTS

Item
Function
Steering lock actuator
Includes motor, lock bar and lock and unlock position sensors. Activated by steering lock ECU.
Steering lock ECU
Included in steering lock actuator. Activates steering lock motor based on permission signals from main body ECU and certification ECU.
Detects steering lock and unlock positions and transmits status to other ECUs.
Main body ECU
Permits steering lock ECU to supply power to activate motor. Main body ECU and certification ECU permit engine start after receiving unlock signal from steering lock ECU.
Certification ECU
Orders steering lock ECU to lock or unlock steering lock. Main body ECU and certification ECU permit engine start after receiving unlock signal from steering lock ECU.
IG2 relay
Controlled by main body ECU. Sends IG signals to steering lock ECU.
ID code box
Transmits command to set or cancel immobiliser to ECM based on permission signals from certification ECU.

WARNING FUNCTION OF ENGINE SWITCH INDICATOR
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Steering Column.Steering System.Steering Lock System System Description

  1. The main body ECU blinks the LED indicator of the engine switch when any of the following problems occur in the system.

    Detection Item
    		Indicator Blink Pattern
    		Indication Status
    		Countermeasure
    Steering lock release malfunction
    1. Blinks green at 1-second intervals
    2. Goes off 30 seconds after blinking starts
    		Motor operates to release steering lock, but steering lock cannot be released (e.g. lock bar stuck in steering column)
    		Push engine switch while turning steering wheel to right and left
    Malfunction in push button start function
    1. Blinks amber at 2-second intervals
    1. Short in devices for activating motor
    2. Problem in steering lock ECU or main body ECU
    		Troubleshoot by following [HOW TO PROCEED WITH TROUBLESHOOTING] (RAV4_ACA30 RM000001T1300JX.html).

WARNING FUNCTION OF COMBINATION METER (w/ Multi-Information Display)


  1. The steering lock ECU displays a warning on the combination meter when any of the following problems occurs in the system.


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Steering Column.Steering System.Steering Lock System System Description


    Detection Item
    		Display
    		Indication Status
    		Countermeasure
    Steering lock release malfunction
    		Illustration A
    Goes off 15 seconds after blinking starts
    		Motor operates to release steering lock, but steering lock cannot be released (e.g. lock bar stuck in steering column)
    		Push engine switch while turning steering wheel to right and left
    Malfunction in push start system
    		Illustration B
    Goes off 15 seconds after the engine switch is turned off while blinking
    1. Short in devices for activating motor
    2. Problem in steering lock ECU or main body ECU
    		Troubleshoot by following [HOW TO PROCEED WITH TROUBLESHOOTING] (RAV4_ACA30 RM000001T1300JX.html).