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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6F50/6F55 >> Diagnosis And Testing >> Automatic Transmission >> Pinpoint Test 3.5L GTDI >> Pinpoint Test S: TFT Sensor >> Pinpoint Test S : Transmission Fluid Temperature Sensor

Pinpoint Test S : Transmission Fluid Temperature Sensor

  1. S1 RETRIEVE AND RECORD ALL DTCS

    • Using the diagnostic scan tool, retrieve all DTCs.

    Are DTCs P0710, P0711, P0712, P0713, P1711 and/or P1783 present? 

    Yes  For DTCs P0712, P0713 and/or P0710, GO to  S2. For DTC P0711, P1711 and/or P1783, GO to  S6.
    No  GO to Symptom Chart .

  2. S2 CHECK THE TFT SENSOR SIGNAL INPUT

    • Ignition OFF.
    • Disconnect: Transmission Vehicle Harness C168 .
    • Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: TFT and TFTV PIDs.

    Does the TFT PID display a temperature of -40 ° C (-40 ° F) and the TFTV PID display 4.9 volts? 

    Yes  GO to  S3.
    No  REPAIR the circuit.

  3. S3 CHECK THE TFT SENSOR SIGNAL CIRCUIT

    • Connect a fused jumper wire  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C168-2 VET27 (BN/YE) C168-3 RE406 (GY/VT)
    1. GFD35622Courtesy of FORD MOTOR COMPANY

    Does the TFT PID display a temperature of 191 °-198 °C (376 °-388 °F) and the TFTV PID display 0.0 to 0.2 volts? 

    Yes  GO to  S5.
    No  GO to  S4.

  4. S4 CHECK THE TFT SENSOR SIGNAL VOLTAGE

    • Measure the voltage  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C168-2 VET27 (BN/YE) - Ground
    1. GFD35622Courtesy of FORD MOTOR COMPANY

    Is the voltage between 4.8 and 5.1 volts? 

    Yes  GO to  S5.
    No  REPAIR the circuit. If an open circuit is not found, INSTALL a new PCM. REFER to Electronic Engine Controls . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to Solenoid Body Strategy Download .

  5. S5 CHECK THE TFT SENSOR RESISTANCE

    • Measure the component side resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      2 - 3 -

      Transmission Fluid Temperature 

      ?C  ?F  Resistance (Ohms) 
      -40 to -20 -40 to -4 1, 076K-269K
      -19 to -1 -3 to 31 309K-91K
      0-20 32-68 104K-35K
      21-40 69-104 40K-15K
      41-70 105-158 17K-4.9K
      71-90 159-194 5.6K-2.5K
      91-110 195-230 3.0K-1.4K
      111-130 231-266 1.7K-0.8K
      131-150 267-302 0.97K-0.56K
    1. GFD35620Courtesy of FORD MOTOR COMPANY

    Does the temperature to resistance specifications match? 

    Yes  GO to Symptom Chart  to diagnose an overheating concern.
    No  INSTALL a new solenoid body assembly. REFER to Solenoid Body Assembly . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to Solenoid Body Strategy Download .

  6. S6 ON DEMAND SELF TEST

    • Check and make sure the transmission vehicle harness C168 is fully seated, terminals are engaged in connector and in good condition before proceeding.
    • Using the diagnostic scan tool, make sure the transmission fluid temperature is between 1.1 °C (30 °F) and 104 °C (220 °F).
    • Perform the KOER self-test.

    Did DTC P0711, P1711 and/or P1783 set? 

    Yes  For DTCs P0711 and P1711, INSTALL a new solenoid body assembly. REFER to Solenoid Body Assembly . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to Solenoid Body Strategy Download . For DTC P1783, REFER to Transaxle Transmission Cooling .
    No  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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