Steering Column: Description and Operation

STEERING COLUMN: STEERING LOCK SYSTEM: SYSTEM DIAGRAM





Input and Output Signal of Each ECU










SYSTEM DESCRIPTION

1. DESCRIPTION

(a) 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.

(b) A Local Interconnect Network (LIN) is used for communication between different ECUs in this system.

2. FUNCTIONS OF COMPONENTS

(a) The steering lock ECU controls the system based on information from the following components:





3. WARNING FUNCTION OF ENGINE SWITCH INDICATOR





Text in Illustration





(a) The power management control ECU blinks the indicator light LED of the engine switch when any of the following problems occur in the system.