Ranger 2WD L4-153 2.5L SOHC VIN C SFI (1998)
Transmission Temperature Sensor/Switch: Description and Operation
TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR
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The Transmission Fluid Temperature (TFT) sensor is a thermistor-type sensor that varies a reference voltage signal. The resistance in the TFT
varies with temperature. The powertrain control module monitors the voltage signal across the TFT and uses this information to determine the
transmission fluid temperature.
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The TFT is located on the main control body wiring harness assembly.
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The Powertrain Control Module (PCM) uses the TFIF signal to help determine shift scheduling, torque converter clutch operation and Electronic
Pressure Control (EPC).
