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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 Tests 3.5L and 3.7L Ti-VCT >> Pinpoint Test F : Transmission Solenoid Power Control >> Pinpoint Test F : Transmission Solenoid Power Control

Pinpoint Test F : Transmission Solenoid Power Control

  1. F1 RETRIEVE AND RECORD ALL DTCS

    • Using the diagnostic scan tool, retrieve all DTCs.

    Is DTC P0657 present? 

    Yes  GO to  F2.
    No  GO to Symptom Chart .

  2. F2 CHECK THE TRANSMISSION SOLENOID POWER CONTROL CIRCUIT

    • 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.
    • Measure the voltage  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C168-15 CET25 (BU/GN) - Ground
    1. GFD35622Courtesy of FORD MOTOR COMPANY

    Is the voltage greater than 10 volts? 

    Yes  REMOVE the main control cover. For 3.5L Ti-VCT, REFER to Main Control Cover - 3.5L Ti-VCT . INSPECT the solenoid body for metal shavings on the exposed metal contacts or other components. CLEAN the solenoid body and RECHECK the resistance value. If the resistance value is out of specification and a short to ground is not found, 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 .
    No  GO to  F3.

  3. F3 CHECK THE TRANSMISSION SOLENOID POWER CONTROL CIRCUIT FOR AN OPEN

    • Ignition OFF.
    • Disconnect: PCM C175T .
    • Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals.
    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C168-15 CET25 (BU/GN) C175T-50 CET25 (BU/GN)
    1. GFD36164Courtesy of FORD MOTOR COMPANY

    Is the resistance less than 5 ohms? 

    Yes  GO to  F4.
    No  REPAIR the circuit.

  4. F4 CHECK THE TRANSMISSION SOLENOID POWER CONTROL CIRCUIT FOR A SHORT TO GROUND

    • Measure the resistance  between.
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C168-15 CET25 (BU/GN) - Ground
    1. GFD35622Courtesy of FORD MOTOR COMPANY

    Is the resistance greater than 10, 000 ohms? 

    Yes  INSTALL a new PCM. REFER to Electronic Engine Controls . PERFORM the Solenoid Body Strategy Data Download procedure. REFER to Solenoid Body Strategy Download .
    No  REPAIR the circuit.
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