Toyota automatic transmission fluid temperature sensor
The automatic transmission fluid (ATF) temperature sensor measures the temperature of the fluid in the automatic transmission (ATF). It transmits this data to the electronic transmission control module (TCM), which uses the information to regulate the operation of the transmission.
Location:
The location of the sensor may vary slightly depending on the model and year of your Toyota vehicle. However, as a rule, it can be found in the automatic transmission pan, which is located at the bottom of the transmission.
Function:
The automatic transmission fluid temperature sensor performs the following functions:
* Measuring automatic transmission fluid temperature
* Transfer temperature data to TCM
*Assists the TCM in regulating transmission operation such as:
* Gear shift
* Torque converter lock
* Clutch operation
Symptoms of malfunction:
* Fuzzy or rough gear shifting
*Transmission slipping
* Automatic transmission goes into emergency mode
*Transmission fault indicator lights up
* Automatic transmission fluid leak
Possible causes of the malfunction:
* Faulty automatic transmission fluid temperature sensor
*Wiring problems
* Low automatic transmission fluid level
*Transmission overheating
Replacement:
If the automatic transmission fluid temperature sensor is faulty, it must be replaced. Replacement usually includes:
*Draining automatic transmission fluid
* Removing the automatic transmission pan
* Sensor replacement
* Installation of automatic transmission pan
* Filling with new automatic transmission fluid
Important:
*Always refer to your specific Toyota model and year repair manual for exact instructions and details.
* It is recommended to have the sensor replaced by a qualified automotive repair technician.
* Failure to promptly replace a faulty sensor can lead to serious transmission problems.