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Home >> Toyota >> 2009 >> Matrix Base, Standard >> Repair and Diagnosis >> Electrical >> Body Electrical >> OEM System Circuits >> EPS >> System Outline

System Outline

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* To reduce the steering force required by the driver, assist current is calculated from the torque sensor signal and the vehicle speed signal and then output to the motor.

* If an abnormality is found in the system, the power relay and motor relay (Built in the ECU) are shut off to stop the assistance and the warning light illuminates in the meter.