The steering lock system locks or unlocks the steering 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 management control ECU.
A Local Interconnect Network (LIN) is used for communication between different ECUs in this system.
FUNCTIONS OF COMPONENTS
The steering lock ECU controls the system based on information from the following components:
|Steering lock actuator assembly||Consists of a motor, lock bar, lock and unlock position sensors, etc. activated by the steering lock ECU.|
|Steering lock ECU||
|Power management control ECU||
|IG2 relay||Controlled by the power management control ECU. Signals indicating the on/off status of this relay are sent to the power management control ECU and steering lock ECU.|
|ID code box||
WARNING FUNCTION OF ENGINE SWITCH INDICATOR
The power management control 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||
||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||
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