DTC Troubleshooting

Control System DTCs

DTC Troubleshooting: P0714

DTC P0714 : ATF Temperature Sensor (Intermittent Failure)

NOTE:
* Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the General Troubleshooting Information How To Troubleshoot The A/T System.
* This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
* An engine block heater must not be used.

1. Current ATF temperature check:

Current ATF temperature check
-1. Turn the ignition switch to ON (II).

-2. Check the following parameters with the HDS:
* ATF Temperature in the A/T Data List
* ECT Sensor 2 in the PGM-FI Data List

Are the ATF Temperature and ECT Sensor 2 equal to the ambient air temperature?
-YES- Record the values of the ATF Temperature and ECT Sensor 2 with the HDS, then go to step 3.
-NO- Record the value of the ATF Temperature with the HDS, then go to step 2.

2. ATF temperature difference check:

ATF temperature difference check
-1. Turn the ignition switch to LOCK (0), and wait for at least 30 minutes.

-2. Compare the current ATF Temperature to the ATF Temperature recorded in step 1.

Does the ATF Temperature change?
-YES- Leave the engine off for at least 6 hours, then go to step 3.
-NO- Replace the ATF temperature sensor Service and Repair.

3. ATF temperature sensor check:

ATF temperature sensor check
-1. Compare the values of the ATF Temperature Sensor and ECT Sensor 2.

Is the value of the ATF Temperature Sensor higher than the value of ECT Sensor 2 by 58 °F (32 °C), or is the value of the ATF Temperature Sensor lower than the value of ECT Sensor 2 by 43 °F (24 °C)?
-YES- Replace the ATF temperature sensor Service and Repair.
-NO- The ATF temperature sensor is OK. Intermittent failure, the system is OK at this time.