DTC    P0711    Transmission Fluid Temperature Sensor "A" Performance

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DESCRIPTION

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DTC No.
DTC Detection Condition
Trouble Area
P0711
  1. Both (a) and (b) are detected (2 trip detection logic):
    1. Intake air and engine coolant temperatures are more than -20°C (-4°F) at engine start
    2. After normal driving for over 18 min. and 9 km (6 miles) or more, ATF temperature is less than 10°C (50°F)
No. 1 ATF temperature sensor

MONITOR DESCRIPTION

This DTC indicates that there is a problem with output from the ATF temperature sensor and that the sensor itself is defective. The ATF temperature sensor converts the ATF temperature to an electrical resistance value. Based on the resistance, the ECM determines the ATF temperature and detects opens or shorts in the ATF temperature circuit or a fault in the ATF temperature sensor.
After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature is below 10°C (50°F) after running the vehicle for a certain period, the ECM interprets this as a fault, and illuminates the MIL.

WIRING DIAGRAM


A110994E01


INSPECTION PROCEDURE

HINT:
Using the intelligent tester's Data List allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.

  1. Warm up the engine.
  2. Turn the ignition switch OFF.
  3. Connect the intelligent tester to the DLC3.
  4. Turn the ignition switch ON and push the tester main switch ON.
  5. Enter the following menus: Powertrain / Engine and ECT / Data List.
  6. Follow the instructions on the tester and read the Data List.

Item
Measurement Item/
Range (Display)
Normal Condition
Diagnostic Note
A/T Oil Temperature 1
No. 1 ATF temperature sensor value/
Min.: -40°C (-40°F)
Max.: 215°C (419°F)
  1. After stall test:
    Approximately 80°C (176°F)
  2. Equal to ambient temperature during cold soak
If value is -40°C (-40°F) or 215°C (419°F), No. 1 ATF temperature sensor circuit is opened or short circuited

CAUTION:
In the table above, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

HINT:
  1. When DTC P0712 is output and the intelligent tester output is 150°C (302°F) or more, there is a short circuit.
  2. When DTC P0713 is output and the intelligent tester output is -40°C (-40°F), there is an open circuit.
    Measure the resistance between terminal THO1 (OT) and the body ground.


Temperature Displayed
Malfunction
-40°C (-40°F)
Open circuit
150°C (302°F) or more
Short circuit

HINT:
If a circuit related to the ATF temperature sensor becomes open, P0713 is set in approximately 0.5 seconds.
It is not necessary to inspect the circuit when P0711 is set.

1.CHECK OTHER DTCS OUTPUT (IN ADDITION TO DTC P0711)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON and push the intelligent tester main switch ON.

  1. Enter the following menus: Powertrain / Engine and ECT / DTC / Current or Pending.

  1. Read the DTCs using the intelligent tester.

    Result:
    Display (DTC output)
    		Proceed to
    Only P0711 is output
    		A
    P0711 and other DTCs
    		B

    HINT:
    If any other codes besides P0711 are output, perform troubleshooting for those DTCs first.



B
GO TO DTC CHART
A


2.CHECK TRANSMISSION FLUID LEVEL

OK:
Automatic transmission fluid level is correct.



NG
ADD FLUID
OK

REPLACE TRANSMISSION WIRE