Circuit Description

Temperature sensor is a 2 wire thermistor located in transaxle. This sensor operates in the same manner as engine coolant temperature sensor and intake air temperature sensor. PCM applies 5 volts to sensor on signal circuit. Voltage sensed at PCM signal circuit terminal will be high when transmission fluid is cold and as fluid warms voltage signal will drop. A very low signal voltage indicates a high fluid temperature or a failure in sensor circuit. Normal fluid temperature range is 75-100°C.

Code 58 will set when sensor indicates a high fluid temperature for a precalibrated period of time. Malfunction Indicator Light (MIL) will illuminate and PCM will use a warm default sensor value.