System Diagram

Fig 1: Power Steering System Diagram

Transmitting ECU (Transmitter)	Receiving ECU	Signal	Communication Method
ECM	Power Steering ECU	Engine variation information signal Drive train variation signal Vehicle destination information signal Variation information of transmission signal Engine speed signal TC terminal signal Actual output torque signal Gear position signal	CAN
Skid Control ECU	Power Steering ECU	Vehicle speed signal VSC operation prohibition state signal Steering assist request signal	CAN
Steering Angle Sensor	Power Steering ECU	Steering angle sensor status Steering angle signal	CAN
Power Steering ECU	ECM	EPS idle up request signal	CAN
Power Steering ECU	Combination Meter	EPS warning light on request signal EPS diagnostic information signal	CAN