DTC P0712: Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713: Transmission Fluid Temperature Sensor "A" Circuit High Input [12/2013 - 11/2016]: Description
WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
The Automatic Transmission Fluid (ATF) temperature sensor converts the fluid temperature into a resistance value for use by the TCM.
The TCM applies a voltage to the temperature sensor through terminal THO1 of the TCM.
The sensor resistance changes with the ATF temperature. As the temperature becomes higher, the sensor resistance decreases.
One terminal of the sensor is grounded so that the sensor resistance decreases and the voltage goes down as the temperature becomes higher.
The TCM calculates the fluid temperature based on the voltage signal.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0712 | Transmission Fluid Temperature Sensor "A" Circuit Low Input | ATF temperature sensor resistance is less than 79 Ω for 0.5 sec. or more (1-trip detection logic). |
|
Comes on | DTC stored |
| P0713 | Transmission Fluid Temperature Sensor "A" Circuit High Input | ATF temperature sensor resistance is more than 156 kΩ for 0.5 seconds or more, and either of the following conditions is met (1-trip detection logic):
|
|
Comes on | DTC stored |