DTC Advanced Diagnostics: P0714

DTC P0714 : ATF Temperature Sensor Comparison

General Description

Courtesy of HONDA, U.S.A., INC.

Courtesy of HONDA, U.S.A., INC.

The ATF temperature sensor is a thermistor type sensor that changes resistance according to the change in ATF temperature. The transmission control module (TCM) sends a 5 V reference signal to the sensor through a pull-up resistor. When the ATF temperature is low, the sensor resistance increases and the TCM detects a high signal voltage. As the ATF temperature rises, the sensor resistance decreases and the TCM detects a low signal voltage. When the engine is stopped and enough time has passed, the ATF temperature will equalize to the engine coolant temperature. When the temperature in the ATF temperature sensor deviates from the temperature in engine coolant temperature (ECT) sensor 2 after the engine is stopped and enough time has passed, the TCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type

Execution	Once per driving cycle
Sequence	P0111, P0112, P0113, P0115, P0116, P0117, P0118, P011A, P011B, P0128, P2182, P2183, P2184, P2185 are judged as OK
Duration	10 seconds or more
DTC Type	Two drive cycles, MIL on, shift position indicator blinks

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]	9.3 V	-
IG1 terminal voltage	10 V	-

[ ]: HDS Parameter

Malfunction Threshold

The temperature in the ATF temperature sensor deviates from the temperature in ECT sensor 2, less than -43 deg.F (-24 deg.C) or greater than 57 deg.F (32 deg.C)*.

*: Greater than 108 deg.F (60 deg.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.

Valve body assembly failure (ATF temperature sensor)
TCM internal circuit failure

Confirmation Procedure

Operating Condition

Turn the vehicle to the OFF (LOCK) mode in P position/mode, and wait for at least 6 hours.
Start the engine in P position/mode, and wait for at least 10 seconds.

Diagnosis Details

Conditions for setting the DTC

When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the TCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on, the shift position indicator blinks, and a Confirmed DTC and the freeze data are stored.

Conditions for clearing the DTC

The shift position indicator comes off by turning the vehicle to the OFF (LOCK) mode. The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool clear command.