DTC P0714: CVT Fluid Temperature Sensor (Intermittent Failure)
General Description
The transmission fluid temperature sensor is a thermistor type sensor that changes resistance according to the change in transmission fluid temperature. The powertrain control module (PCM) sends a 5 V reference signal to the sensor through a pull-up resistor. When the transmission fluid temperature is low, the sensor resistance increases and the PCM detects a high signal voltage. As the transmission fluid temperature rises, the sensor resistance decreases and the PCM detects a low signal voltage. When the engine is stopped and enough time has passed, the transmission fluid temperature will equalize to the engine coolant temperature. When the temperature in the transmission fluid temperature sensor deviates from the temperature in engine coolant temperature (ECT) sensor 2 after the engine is stopped and enough time has passed, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type, OBD Status
| Execution | Once per driving cycle |
| Sequence | P0111, P0112, P0113, P0116, P0117, P0118, P011A, P0125, P0128, P2183, P2184, P2185 are judged as OK |
| Duration | 10 seconds or more |
| DTC Type | Two drive cycles, MIL off, A/T gear position indicator blinks |
| OBD Status | PASSED/FAILED/NOT COMPLETED (STILL TESTING) |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| Elapsed time after the vehicle condition is turned to the OFF (LOCK) mode | 6 hours | - |
| 12 volt battery voltage [Battery Voltage] | 11 V | - |
| No active DTCs set (prevents monitor from running) | P0117, P0118, P0711, P0712, P0713, P2184, P2185 | |
| Other | Not to be towed during engine stop | |
[ ]: HDS Parameter
Malfunction Threshold
The temperature in the transmission fluid temperature sensor deviates from the temperature in ECT sensor 2, less than -43 °F (-24 °C) or greater than 57 °F (32 °C)*.
*: Greater than 108 °F (60 °C) if engine block heater is equipped.
Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- Transmission fluid temperature sensor failure
- PCM internal circuit failure
Confirmation Procedure
Operating Condition
- 1. Turn the vehicle to the OFF (LOCK) mode in P, and wait for at least 6 hours.
- 2. Start the engine in P, and wait for at least 10 seconds.
With the HDS
None.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, a Confirmed DTC and the freeze data are stored. The MIL does not come on.
Conditions for clearing the DTC
The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.