DTC Advanced Diagnostics: P0711
DTC P0711:CVT Fluid Temperature Sensor (Range/Performance)

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. If the transmission fluid 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 off, 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 °F (70 °C)
–
Initial engine coolant temperature [Engine Coolant Temperature]
–
95 °F (35 °C)
Transmission fluid temperature [CVTF Temperature]
–
14 °F (-10 °C)
Initial transmission fluid temperature [CVTF Temperature]
–
14 °F (-10 °C)
Vehicle speed [Vehicle Speed]
19 mph (30 km/h)
–
12 volt battery voltage [Battery Voltage]
11 V
–
Throttle position
4 °
–
No active DTCs set (prevents monitor from running)
P0117, P0118, P0712, P0713, P0714
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 transmission fluid temperature [CVTF Temperature] is 14 °F (-10 °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.
Transmission fluid temperature sensor failure
PCM internal circuit failure

Confirmation Procedure
Operating Condition

1.
Start the engine with the engine coolant temperature [Engine Coolant Temperature] at 95 °F (35 °C) or less.
2.
Warm up the engine until the engine coolant temperature [Engine Coolant Temperature] reaches 158 °F (70 °C) or more.
3.
Drive the vehicle at a speed of 19 mph (30 km/h) or more with the throttle position at 4 ° or more for at least 5 minutes.
Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
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.