CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P0711

DTC Code DTC Name
P0711 Transmission Fluid Temperature Sensor "A" Circuit Range / Performance

DESCRIPTION

The CVT fluid temperature sensor converts the fluid temperature into a resistance value which is detected by the ECM.

The sensor resistance changes with the CVT fluid temperature. As the temperature rises, the sensor resistance decreases. The ECM applies voltage to the temperature sensor through ECM terminal THO1 and calculates the fluid temperature based on the voltage signal.

Tech Tips

The CVT fluid temperature is likely to increase under conditions such as towing, climbing hills and in traffic.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0711 Transmission Fluid Temperature Sensor "A" Circuit Range / Performance

  1. Diagnosis Condition


    • The intake air and engine coolant temperatures are more than -10°C (14°F) at engine start, and the vehicle is driven for over 18 minutes at 7 km (4.0 miles) or more.

  2. Malfunction Status


    • The CVT fluid temperature is below 20°C (68°F).

  3. Malfunction Time


    • 3 seconds

  4. Other


    • 2-trip detection logic


  1. Diagnosis Condition


    • The engine coolant temperature is less than 35°C (95°F) at engine start.

  2. Malfunction Status


    • The CVT fluid temperature is 100°C (212°F) or more.

  3. Malfunction Time


    • 10 seconds

  4. Other


    • 2-trip detection logic

  • CVT fluid level

  • Continuously variable transaxle assembly (CVT fluid temperature sensor)

 Comes on DTC stored

MONITOR DESCRIPTION

The CVT fluid temperature sensor converts the CVT fluid temperature to an electrical resistance value. Based on the resistance, the ECM determines the CVT fluid temperature and detects open or short circuits in the CVT fluid temperature circuit.

After driving the vehicle for a certain period, the CVT fluid temperature should increase. When the CVT fluid temperature is below 20°C (68°F), the ECM interprets this as a fault and illuminates the MIL.

When the engine coolant temperature reaches 35°C (95°F) after a cold engine start, if the CVT fluid temperature is 100°C (212°F) or more, the ECM also determines this as a fault, illuminates the MIL, and stores this DTC.

PROCEDURE


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


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.


      Powertrain > Engine and ECT > Trouble Codes

    5. Read the DTCs using the GTS.

      Tech Tips

      If any DTCs other than P0711 are output, perform troubleshooting for those DTCs first.

      Result
      Result Proceed to
      Only DTC P0711 is output A
      DTC P0711 and other DTCs are output B

    B

    GO TO DTC CHART Click here

    A

  2. CHECK CVT FLUID LEVEL


    1. Check the CVT fluid level.

      Click here

      OK
      CVT fluid level is correct.
      Result
      Proceed to
      OK
      NG

    NG

    ADD FLUID Click here

    OK

  3. REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY


    1. Replace the continuously variable transaxle assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. PERFORM INITIALIZATION

    Note


    • Performing Reset Memory will clear the learned value of the yaw rate and acceleration sensor (deceleration sensor zero point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform Reset Memory, yaw rate and acceleration sensor zero point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:

      Replaced Part

      • Continuously variable transaxle assembly

      • ECM

      • Oil pressure sensor

      • Airbag sensor assembly (Yaw rate and acceleration sensor)

    • After performing Reset Memory, always perform yaw rate and acceleration sensor (deceleration sensor zero point) calibration first, and then CVT oil pressure calibration.

    • Always perform calibration with the vehicle on level ground.

    • Do not shake or vibrate the vehicle during calibration.


    1. Using the GTS, perform Reset Memory, deceleration sensor zero point calibration and CVT oil pressure calibration.

      Click here

    2. Check for DTCs again.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    END