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COMPONENT PARTS EC-27 < SYSTEM DESCRIPTION > [HR16DE] C D E F G H I J K L M A EC N P O Stop Lamp Switch & Brake Pedal Position Switch INFOID:0000000009266981 Stop lamp switch and brake pedal position switch are installed to brake pedal bracket. ECM detects the state of the brake pedal by those two types of input (ON/OFF signal). Throttle Control Motor INFOID:0000000009266982 The throttle control motor is operated by the ECM and it opens and closes the throttle valve. The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed- back to the ECM to control the throttle valve in response to driving conditions via the throttle control motor. Throttle Control Motor Relay INFOID:0000000009266983 Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. Throttle Position Sensor INFOID:0000000009266984 Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle position sensor responds to the throttle valve movement. The throttle position sensor has two sensors. These sensors are a kind of potentiometer which transform the throttle valve position into output voltage, and emit the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these sig- nals and controls the throttle valve in response to driving conditions via the throttle control motor. ASCD Steering Switch INFOID:0000000009266985 ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation of switch, and determines which button is operated. Brake pedal Brake pedal position switch Stop lamp switch Released ON OFF Depressed OFF ON PBIB0145E |