CONTINUOUSLY VARIABLE TRANSAXLE SYSTEM, Diagnostic DTC:P0711

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

Either one of the following conditions is met (2 trip detection logic):


  • The intake air and engine coolant temperatures were more than -10°C (14°F) at engine start, and the CVT fluid temperature remains below 20°C (68°F) for 3 seconds when the vehicle has been driven for over 18 minutes and 7 km (4.375 miles).

  • The engine coolant temperature was less than 35°C (95°F) at engine start, and the CVT fluid temperature remains more than 100°C (212°F) for 10 seconds.

  • CVT fluid level

  • Continuously variable transaxle assembly (CVT fluid temperature sensor)

 Comes on DTC stored
DTC Detection Condition Patterns:
Vehicle Condition
Pattern 1 Pattern 2
Diagnostic Condition The intake air and engine coolant temperatures were more than -10°C (14°F) at engine start, and the vehicle has been driven for over 18 minutes at 7 km (4.375 miles). ○ -
The engine coolant temperature was less than 35°C (95°F) at engine start. - ○
Malfunction Condition The CVT fluid temperature remains below 20°C (68°F). ○ -
The CVT fluid temperature remains more than 100°C (212°F). - ○
Duration 3 seconds or more 10 seconds or more
Detection Logic 2 trip detection logic 2 trip detection logic

Tech Tips

This DTC is output when either of the above detection patterns is met.

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. If the CVT fluid temperature remains 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 higher, the ECM also determines this as a fault, illuminates the MIL, and stores this DTC.

CAUTION / NOTICE / HINT

Note


  • Perform initialization when parts related to the continuously variable transaxle are replaced.

    Click here

  • Check that no DTCs are stored after performing initialization.

    Click here

Tech Tips

After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.


  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 / Data List / AT Oil Temperature 1.

  5. Drive the vehicle and check that the Data List value (AT Oil Temperature 1) is between 20 to 100°C (68 to 212°F).

  6. Check for DTCs again.

    Click here

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.


      • When Not Using the Engine Support Bridge

        Click here

      • When Using the Engine Support Bridge

        Click here

      Result
      Proceed to
      NEXT

    NEXT

    PERFORM INITIALIZATION Click here