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Home >> Lincoln >> 2019 >> Nautilus Base, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transmission - 8-Speed Automatic Transmission - 8F57 (2 Of 2)) >> Diagnosis And Testing >> DTC Chart and Pinpoint Tests - 2.7L EcoBoost (238kW/324PS) >> Pinpoint Tests >> Pinpoint Test I : Shift Solenoid "D" - Electronic SELECTABLE One-Way Clutch

Pinpoint Test I : Shift Solenoid "D" - Electronic SELECTABLE One-Way Clutch

WARNING: This page is about a different variant/trim than selected.
  1. Refer to Transmission Controls - 8F57 for schematic and connector information.

    Normal Operation and Fault Conditions 

    The D solenoid is an electric solenoid mounted directly on the electronic selectable one-way clutch assembly. The electronic SOWC clutch, prevents backward rotation of R2, C3 and C4; by deployment of a electrically controlled strut that when deployed prevents forward rotation of R2, C3 and C4. REFER to: Transmission Description - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    PCM P0768:00 Shift Solenoid "D" Electrical: No Sub Type Information This DTC indicates an electrical fault in the electronic selectable one-way clutch solenoid.
    PCM P0769:00 Shift Solenoid "D" Intermittent: No Sub Type Information This DTC sets if the PCM detects an electrical issue but the event didn't last long enough to identify a specific fault.
    PCM P097D:00 Shift Solenoid "D" Control Circuit/Open: No Sub Type Information This DTC sets if the PCM detects an open circuit.
    PCM P0983:00 Shift Solenoid "D" Control Circuit High: No Sub Type Information This DTC sets if the PCM detects a high voltage in one of the control circuits.

    Possible Sources 

    • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
    • D Solenoid - electronic selectable one-way clutch solenoid
    • Transmission vehicle, main control and internal wiring harnesses
    • PCM

  2. I1 CHECK THE ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID CIRCUIT FOR VOLTAGE

    • Ignition OFF.

    • Disconnect: Transmission Harness C1575.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1575-2
      GFD425661Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  I4
    No  GO to  I2

  3. I2 CHECK THE ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID VOLTAGE CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect: PCM C1551T.

    • Inspect the connector for damaged or pushed out terminals, corrosion, loose wires and missing or damaged seals.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1551T-2
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 C1575-2

    Is the resistance less than 3 ohms? 

    Yes  GO to  I3
    No  REPAIR the transmission vehicle harness circuit.

  4. I3 CHECK THE ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID VOLTAGE CIRCUIT FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1551T-2
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  Refer to PCM Guided Routine .
    No  REPAIR the transmission vehicle harness circuit.

  5. I4 CHECK THE ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID GROUND CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1575-28
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  GO to  I5
    No  REPAIR the transmission vehicle harness circuit. CLEAR the DTCs.

  6. I5 CHECK ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID CONTROL CIRCUITS FOR AN OPEN

    Are the resistances less than 3 ohms? 

    Yes  GO to  I6
    No  REPAIR the transmission vehicle harness circuit. CLEAR the DTCs.

  7. I6 CHECK ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID CONTROL CIRCUITS FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C1551T-79
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground
      C1551T-31
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms on the suspect circuit? 

    Yes  GO to  I7
    No  REPAIR the transmission vehicle harness circuit. CLEAR the DTCs.

  8. I7 CHECK ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID CONTROL CIRCUITS FOR A SHORT TOGETHER WITH POWER CIRCUITS

    Is the resistance greater than 10, 000 ohms on the suspect circuit? 

    Yes  GO to  I8
    No  REPAIR the transmission vehicle harness circuit. CLEAR the DTCs.

  9. I8 CHECK ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID INTERNAL WIRING HARNESS FOR AN OPEN CIRCUIT

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 23
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 C1961-1
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 28
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 C1961-2
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 25
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 C1961-3
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 2
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 C1961-4

    Are the resistances less than 3 ohms? 

    Yes  GO to  I9
    No  INSTALL a new internal wiring harness. REFER to: Main Control Valve Body  .

  10. I9 CHECK ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID INTERNAL WIRING HARNESS FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 23
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 28
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 25
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 2
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  I10
    No  INSTALL a new internal wiring harness. REFER to: Main Control Valve Body  .

  11. I10 CHECK ELECTRONIC SELECTABLE ONE-WAY CLUTCH SOLENOID INTERNAL WIRING HARNESS CIRCUITS FOR A SHORT TOGETHER

    • Measure:

      TCC Solenoid 

      Positive Lead Measurement / Action Negative Lead
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 23
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 28
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 25
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground
      GFD427715Courtesy of FORD MOTOR COMPANY

      Transmission Harness Connector, component side, pin 2
      GFD425660Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  INSTALL a new electronic selectable one-way clutch and jumper harness. REFER to: Transmission  .
    No  INSTALL a new internal wiring harness. REFER to: Main Control Valve Body  .
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