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How normal is the idle voltage of Toyota three-wire throttle position sensor?

0.5V to 5V.

According to Baidu Youjia, the normal idle voltage of the Toyota three-line throttle position sensor is 0.5V to 5V ... because the output signal voltage of the throttle position sensor will reflect the throttle opening when idling. When the throttle valve is completely closed, the voltage is close to 0 V; The greater the throttle opening, the higher the voltage, but it will not exceed 5V under normal circumstances.

The throttle position sensor is also called throttle opening sensor or throttle switch. Its main function is to detect whether the engine is in idle or load condition, acceleration or deceleration condition.