P0710

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
The Automatic Transmission Fluid (ATF) temperature sensor converts the fluid temperature into a resistance value which is input into the ECM.





The ECM applies a voltage to the temperature sensor through ECM terminal OIL.

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 decreases as the temperature becomes higher.

The ECM calculates the ATF temperature based on the voltage signal.

P0710:

P0712-P0713:

MONITOR DESCRIPTION
The ATF temperature sensor converts ATF temperature to an electrical resistance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an open or short in the ATF temperature circuit. If the resistance value of the ATF temperature is less than 79 Ohms*1 or more than 156 kOhms*2, the ECM interprets this as a fault in the ATF sensor or wiring. The ECM will illuminate the MIL and store the DTC.

HINT:
^ *1: 150°C (302°F) or more is indicated regardless of the actual ATF temperature.
^ *2: -40°C (-40°F) is indicated regardless of the actual ATF temperature.
^ The ATF temperature can be checked on the intelligent tester display.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE

WIRING DIAGRAM:

INSPECTION PROCEDURE

HINT: Using the intelligent tester's DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.

NOTICE: In the table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

1. Warm up the engine.
2. Turn the ignition switch OFF.
3. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
4. Turn the ignition switch ON.
5. Turn the intelligent tester ON.
6. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DATA LIST.
7. Follow the instructions on the tester and read the DATA LIST.

ECM:

HINT:
^ When DTC P0712 is output and the intelligent tester output is 150°C (302°F) or more, there is a short circuit.
^ When DTC P0713 is output and the intelligent tester output is -40°C (-40°F), there is an open circuit. Measure the resistance between terminal OIL (OT) and the body ground.





HINT:
^ If a circuit related to the ATF temperature sensor becomes open, P0713 is set in approximately 0.5 seconds.
^ It is not necessary to inspect the circuit when P0711 is set.

Steps 1-2: