DTC P0711

DTC P0711: ATF Temperature Sensor (Range/Performance)

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 powertrain control module (PCM) 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 PCM detects a high signal voltage. As the ATF temperature rises, the sensor resistance decreases and the PCM detects a low signal voltage. If the ATF temperature sensor signal does not change, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status

Execution	Once per driving cycle
Sequence	None
Duration	5 minutes or more
DTC Type	Two drive cycles, MIL on, A/T gear position indicator blinks
OBD Status	PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Enable Conditions

Condition	Minimum	Maximum
Engine coolant temperature [Engine Coolant Temperature]	158 deg.F (70 deg.C)	-
Initial engine coolant temperature [Engine Coolant Temperature]	-	95 deg.F (35 deg.C)
ATF temperature [ATF Temperature]	-	-4 deg.F (-20 deg.C)
Initial ATF temperature [ATF Temperature]	-	-4 deg.F (-20 deg.C)
Vehicle speed [Vehicle Speed]	19 mph (30 km/h)	-
Battery voltage [Battery Voltage]	11 V	-
Throttle position	4 deg.	-
No active DTCs set (prevents monitor from running)	P0117, P0118, P0712, P0713, P0714, P0721, P0722
Other	After the engine coolant temperature [Engine Coolant Temperature] reaches the fixed value, both the vehicle speed [Vehicle Speed] and the throttle position meet the conditions for at least 5 minutes

[ ]: HDS Parameter

Malfunction Threshold

The current ATF temperature [ATF Temperature] is -4 deg.F (-20 deg.C) or less after Enable Conditions.

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.

ATF temperature sensor failure
PCM internal circuit failure

Confirmation Procedure

With the HDS

None.

With the Driving Pattern

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

Start the engine with the engine coolant temperature [Engine Coolant Temperature] at 95 deg.F (35 deg.C) or less.
Warm up the engine until the engine coolant temperature [Engine Coolant Temperature] reaches 158 deg.F (70 deg.C) or more.
Drive the vehicle at a speed of 19 mph (30 km/h) or more with the throttle position at 4 deg. or more for at least 5 minutes.

Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

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, the MIL comes on and a Confirmed DTC and the freeze data are stored.

Conditions for clearing the DTC

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 or by disconnecting the battery.