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Home >> Lexus >> 2007 >> LX 470 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle >> Automatic Transmission System >> DTC P0711 Transmission Fluid Temperature Sensor "A" Performance >> Inspection Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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.

NOTE: In the table below, 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.
  1. Warm up the engine.
  2. Turn the ignition switch OFF.
  3. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
  4. Turn the ignition switch ON.
  5. Turn the intelligent tester ON.
  6. Enter the following menus: DIAGNOSIS / OBD/MOBD / ECT / DATA LIST.
  7. Follow the instructions on the tester and read the DATA LIST.
    NORMAL CONDUCTION REFERENCE VALUE

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

HINT:

TEMPERATURE REFERENCE

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 CAN VIM. Then connect the CAN VIM to the DLC3.
    2. Turn the ignition switch ON and push the intelligent tester main switch ON.
    3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
    4. Read the DTCs using the intelligent tester.

      Result 

      DTC RESULT REFERENCE

      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: Go to Next Step 

  2. CHECK TRANSMISSION FLUID LEVEL 

    OK: Automatic transmission fluid level is correct. 

    NG: ADD FLUID 

    OK: REPLACE TRANSMISSION WIRE