DTC    P0711    Transmission Fluid Temperature Sensor "A" Performance

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DESCRIPTION

The CVT fluid temperature sensor converts the fluid temperature into a resistance value which is input to the ECM.
The sensor resistance changes with the transmission fluid temperature. As the temperature rises, the sensor resistance decreases. The ECM applies a voltage to the temperature sensor through ECM terminal THO1, and the ECM calculates the fluid temperature based on the voltage signal.

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


DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P0711
  1. Intake air and engine coolant temperatures are more than -10°C (14°F) at engine start, after normal driving for over 18 minutes and 8 km (5 miles) or more.
  2. CVT fluid temperature is less than 20°C (68°F).
  3. 3 seconds
  4. 2-trip detection logic
  1. CVT fluid level
  2. Continuously variable transaxle assembly
    (Transmission fluid temperature sensor)
  1. Engine coolant temperature is less than 35°C (95°F) at engine start.
  2. CVT fluid temperature is 100°C (212°F).
  3. 10 seconds
  4. 2-trip detection logic

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

INSPECTION PROCEDURE

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

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the tester on.

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

  1. Read the DTCs using the tester.
    Result 
    Result
    		Proceed to
    Only P0711 is output
    		A
    P0711 and other DTCs are output
    		B

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



B
GO TO DTC CHART (Click here)
A


2.CHECK TRANSMISSION FLUID LEVEL

  1. Check the CVT fluid level (Click here).

OK:
CVT fluid level is correct.



NG
ADD FLUID
OK


3.REPLACE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

  1. Replace the continuously variable transaxle assembly (Click here).


NEXT


4.PERFORM INITIALIZATION

NOTICE:
  1. Performing reset memory/initialization will clear the learned values of both the yaw rate and acceleration sensor (deceleration sensor 0 point calibration) and the CVT oil pressure (CVT oil pressure calibration). Make sure to perform reset memory, yaw rate and acceleration sensor 0 point calibration, and CVT oil pressure calibration when replacing any of the parts shown in the following table:
    Replaced Part
    1. Continuously variable transaxle assembly
    2. ECM
    3. Oil pressure sensor
    4. Yaw rate and acceleration sensor
  2. After reset memory, always perform yaw rate and acceleration sensor (deceleration sensor 0 point) calibration first, and then the CVT oil pressure calibration.
  3. Always perform the 0 point calibration with the vehicle on level ground.
  4. Do not shake or vibrate the vehicle during the 0 point calibration.

  1. Using the intelligent tester, perform the reset memory, deceleration sensor 0 point calibration and CVT oil pressure calibration (Click here).

  1. Check for DTCs again (Click here).


NEXT

END