P0710

DTC P0710 Transmission Fluid Temperature Sensor "A" Circuit

CIRCUIT DESCRIPTION

DTC Detection Conditions:

The ATF temperature sensor converts the fluid temperature into a resistance value which is input into the ECM.

MONITOR DESCRIPTION

Monitor Strategy:

Typical Enabling Conditions:

Typical Malfunction Thresholds:

Component Operating Range:

The automatic transmission fluid (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 opens or shorts 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 turn on the MIL and store the DTC.
*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.

HINT: The ATF temperature can be checked on the OBD II scan tool or hand-held tester display.

Wiring Diagram:

INSPECTION PROCEDURE

Step 1:

Step 2:

Step 3:

HINT: If DTCs that are related to different systems are output simultaneously while terminal E2 is used as a ground terminal, terminal E2 may have an open circuit.

CHECK FOR INTERMITTENT PROBLEMS

HINT:

Hand-held tester only:
Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with the hand-held tester when the ECM is in check mode. In check mode, the ECM uses 1trip detection logic, which is more sensitive to malfunctions than normal mode (default) that uses 2trip detection logic.

a. Clear DTCs.
b. Switch the ECM from normal mode to check mode using a hand-held tester.
c. Perform a simulation test.
d. Check and wiggle the harness(es), the connector(s) and terminal(s).