DTC P0710 Transmission Fluid Temperature Sensor "A" Circuit; DTC P0712 Transmission Fluid Temperature Sensor "A" Circuit Low Input; DTC P0713 Transmission Fluid Temperature Sensor "A" Circuit High Input: Description
WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
The ATF (Automatic Transmission Fluid) temperature sensor converts the fluid temperature into a resistance value which is input to the ECM.
The sensor resistance changes with the transmission fluid temperature. As the temperature rises, the sensor resistance decreases. The ECM applies a voltage to the temperature sensor through ECM terminal THO1, and the ECM calculates the fluid temperature based on the voltage signal.
HINT:
- The ATF temperature is likely to increase under conditions such as towing, climbing hills and in heavy traffic.
- When the ATF temperature sensor is normal, the transmission locks up in 4th gear with the shift lever in the D position and in 3rd gear with the shift lever in the 3rd position.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0710 | Both (a) and (b) are detected momentarily within 0.5 seconds when neither P0712 nor P0713 is detected. (1-trip detection logic)
HINT: Within 0.5 seconds, malfunction switches from (a) to (b) or from (b) to (a). |
|
| P0712 | ATF temperature sensor resistance is less than 79 Ω for 0.5 seconds or more. (1-trip detection logic) |
|
| P0713 | Following condition continues for 0.5 seconds or more. (1-trip detection logic) ATF temperature sensor resistance is more than 156 kΩ after 15 minutes or more after starting engine. |
|