当冷却液温度传感器出现故障时,将有故障记忆,发动机不能准确计算出喷油量,发动机不能准确计算出怠速理论转速,发动机怠速会不稳。冷却液液位传感器是一种安装在散热水箱上或膨胀水箱中并用于测量散热器顶部水箱中开关,通过发动机线束将信息传输给ECM。
冷却液温度传感器为负温度系数电阻计NTC,随着温度的升高,电阻值随之会下降。通过测量电压值计算出电阻的大小,从而推算出冷却液的温度值。
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