System Description
- DESCRIPTION
- 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 FUNCTIONS OF COMPONENTS
Item Function Steering lock actuator assembly Includes a motor, lock bar, and lock and unlock position sensors. 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 main body ECU and certification ECU.
Detects steering lock and unlock positions and transmits the status to other ECUs.Main body ECU Permits the steering lock ECU to supply power to activate the motor. The main body 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 or unlock the steering lock. The main body ECU and certification ECU permit engine start after receiving an unlock signal from the steering lock ECU. IG2 relay Controlled by the main body ECU. Sends IG signals to the steering lock ECU. ID code box Transmits a command to the ECM to set or cancel the immobiliser based on permission signals from the certification ECU. - WARNING FUNCTION OF ENGINE SWITCH INDICATOR
- The main body ECU blinks the LED indicator light of the engine switch when any of the following problems occurs in the system.ENGINE SWITCH INDICATOR REFERENCE
Detection Item Indicator Light Blinking Pattern Indication Status Countermeasure Steering lock release malfunction - Blinks in green at 1-second intervals
- 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 button start function - Blinks in amber at 2-second intervals
- Short in devices for activating motor
- Problem in steering lock ECU or main body ECU
Troubleshoot by following "HOW TO PROCEED WITH TROUBLESHOOTING " (See )
- The main body ECU blinks the LED indicator light of the engine switch when any of the following problems occurs in the system.