Dtc P0711 Transmission Fluid Temperature Sensor A Performance

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Ae80F Automatic Transmission Transaxle. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT (IN ADDITION TO DTC P0711)

CHECK TRANSMISSION FLUID LEVEL

DTC P0711 Transmission Fluid Temperature Sensor "A" Performance


DESCRIPTION

The No. 1 ATF temperature sensor converts the fluid temperature into a resistance value for use by the TCM.
The TCM applies a voltage to the No. 1 ATF temperature sensor through terminal THO1 of the TCM. The sensor resistance changes with the ATF temperature. As the temperature becomes higher, the sensor resistance decreases.
One terminal of the sensor is grounded so that the sensor resistance decreases and the voltage goes down as the temperature becomes higher.
The TCM calculates the fluid temperature based on the voltage signal.

DTC No.
DTC Detection Condition
  1. Diagnosis Condition
  2. Malfunction Status
  3. Malfunction Time
  4. Other
Trouble Area
P0711
  1. Certain monitor enabling conditions are met.
  2. ATF temperature is below 20°C (68°F)
  3. 3 seconds
  4. 2-trip detection logic
No. 1 ATF temperature sensor (transmission wire)
  1. Certain monitor enabling conditions are met.
  2. ATF temperature is 110°C (230°F) or higher
  3. 3 seconds
  4. 2-trip detection logic

MONITOR DESCRIPTION

This DTC indicates that there is a problem with output signals from the No. 1 ATF temperature sensor and that the sensor itself is defective. The No. 1 ATF temperature sensor converts the ATF temperature into an electrical resistance value. Based on the resistance, the TCM determines the ATF temperature and detects an open or short in the No. 1 ATF temperature sensor circuit or a fault of the No. 1 ATF temperature sensor.
After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature is below 20°C (68°F) after running the vehicle for a certain period, the TCM interprets this as a malfunction, and stores the DTC.
When the ATF temperature is 110°C (230°F) or higher and the engine coolant temperature takes 10 seconds or more to reach 60°C (140°F) after a cold start, the TCM also determines this as a malfunction, and stores the DTC.

WIRING DIAGRAM

Refer to DTC P0712 (Click here).

INSPECTION PROCEDURE

NOTICE:
Perform registration and/or initialization when parts related to the automatic transmission are replaced (Click here).
HINT:
After performing repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
  1. Start the engine.*1
  2. Drive the vehicle 27 km (16.8 miles) or more over a period of 12 minutes and 30 seconds or more.*2
  3. After 55 minutes or more have elapsed since performing step (*1), turn the engine switch off.*3
  4. Perform steps (*1) through (*3) again.
  5. Check for DTCs again (Click here).

DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values.
HINT:
Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

  1. Warm up the engine.

  2. Turn the engine switch off.

  3. Connect the GTS to the DLC3.

  4. Turn the engine switch on (IG).

  5. Turn the GTS on.

  6. Enter the following menus: Powertrain / ECT / Data List / A/T Oil temperature 1.

  7. According to the display on the GTS, read the Data List.

    ECT
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    A/T Oil Temperature 1
    		No. 1 ATF temperature sensor value/
    Min.: -40°C (-40°F)
    Max.: 171°C (339.8°F)
    1. After stall speed test: Approximately 80°C (176°F)
    2. While engine is cold:
      Equal to ambient temperature
    		If value is -40°C (-40°F) or 171°C (339.8°F), No. 1 ATF temperature sensor circuit is open or short circuited.

    HINT:
    1. When DTC P0712 is output and the GTS shows 171°C (339.8°F) or higher, there is a short circuit.
    2. When DTC P0713 is output and the GTS shows -40°C (-40°F), there is an open circuit.
      Check the temperature displayed on the GTS in order to check if a malfunction exists.

    Temperature Displayed
    		Malfunction
    -40°C (-40°F)
    		Open circuit
    150°C (302°F) or higher
    		Short circuit
    HINT:
    If a circuit related to the No. 1 ATF temperature sensor becomes open, P0713 will be stored in approximately 0.5 seconds. It is not necessary to inspect the circuit when P0711 is output.
1.CHECK DTC OUTPUT (IN ADDITION TO DTC P0711)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Powertrain / ECT / Trouble Codes.

  1. Read the DTCs using the GTS.

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

    HINT:
    If any DTCs other than DTC 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 transmission fluid level (Click here).

    OK:
    Automatic transmission fluid level is correct.


NG
ADJUST AUTOMATIC TRANSMISSION FLUID LEVEL (Click here)
OK

REPLACE NO. 1 ATF TEMPERATURE SENSOR (TRANSMISSION WIRE) (Click here)