Transmission Oil Temperature (Tot) Sensor

Description: The Transmission Oil Temperature sensor is located on the solenoid body in the transmission sump. It is a temperature-sensitive device called a thermistor. It sends a voltage signal to the processor assembly. The voltage signal varies with the transmission oil temperature. The processor assembly uses this signal to determine whether a cold start shift schedule is necessary. The cold start shift schedule lowers shift speeds to allow for the increased viscosity of the cold transmission fluid.


Transmission function: Adjust shift schedule and TV pressure for temperature effects

Symptoms: Converter clutch and stabilized shift schedule happen too soon after cold start

Test codes: 26, 56, 66