Transmission Fluid Temperature Sensor

Transmission fluid temperature sensor is a thermistor and is a part of the transmission range fluid pressure switch assembly and is attached to valve body. High sensor resistance produces high signal input voltage which corresponds to low fluid temperature. Low sensor resistance produces low signal input voltage which corresponds to high fluid temperature. PCM uses transmission fluid temperature sensor signal input to determine TCC apply and release schedules, hot mode determination and shift quality. A fault in the transmission fluid temperature sensor circuit will set a related trouble code.