LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 671 (Automatic Transmission - 10-Speed Automatic Transmission - 10R80 MHT (Diagnosis & Testing - Installation)) >> Diagnosis And Testing >> DTC Chart and Pinpoint Tests - 3.5L V6 PowerBoost (CN) >> Pinpoint Tests >> Pinpoint Test H: Park Lock Pawl Solenoid

Pinpoint Test H: Park Lock Pawl Solenoid

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Refer to Wiring Diagrams TRANSMISSION CONTROLS - 10R80 for schematic and connector information.

    Normal Operation and Fault Conditions 

    The park lock pawl solenoid is used to keep the vehicle out of park during stay in neutral mode, and during stop-start events. When the engine is running, hydraulic pressure from the A, C, D or F clutches can keep the system out of park. When the park lock pawl solenoid is energized, the solenoid pin is extended, locking the park lock pawl valve either in the park position or out of the park position.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    PCM P07E4:00 Unable to Engage Park: No Sub Type Information This DTC indicates the PCM commanded park, but the movement timed out and the TR sensor does not read park. There are no TR sensor circuit faults.
    PCM P07E6:00 Stuck in Park: No Sub Type Information This DTC indicates the PCM commanded movement out of park, but the movement timed out and the TR sensor still reads park. There are no TR sensor circuit faults.
    PCM P2888:00 Park Lock/Pawl Actuator Circuit/Open: No Sub Type Information This DTC indicates an open circuit in the park lock pawl solenoid circuit.
    PCM P2889:00 Park Lock/Pawl Actuator Circuit Low: No Sub Type Information This DTC indicates a short to ground in the park lock pawl solenoid circuit.
    PCM P288A:00 Park Lock/Pawl Actuator Circuit High: No Sub Type Information This DTC indicates a short to power in the park lock pawl solenoid circuit.
    PCM P288B:00 Park Lock/Pawl Actuator Circuit Performance: No Sub Type Information This DTC indicates a non-electrical fault causing the park lock pawl solenoid to not hold the vehicle out of park when in stay in neutral mode or during a stop-start event. The stop-start function is disabled while this code is present.

    Possible Sources 

    • Park is manually released
    • Low line pressure
    • Circuit open or shorted
    • Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
    • Transmission internal wiring harness
    • Park lock pawl solenoid
    • PCM

  2. H1 RETRIEVE AND RECORD ALL DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, retrieve all diagnostic trouble codes (DTCs) from the PCM.

    Are diagnostic trouble codes (DTCs) P07E4, P07E6, P2888, P2889, P288A, P288B present? 

    Yes  If diagnostic trouble codes (DTCs) P2888, P2889, P288A, P288B are present, RESOLVE those first. GO to  H4 For DTC P07E4, GO to  H2 For DTC P07E6, GO to  H3
    No  If no diagnostic trouble codes (DTCs) are set, but a symptom is present, REFER to: Diagnosis By Symptom . If there are no diagnostic trouble codes (DTCs) and no symptoms present, the system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or terminal issues.

  3. H2 CONFIRM PARK IS NOT MANUALLY OVERRIDDEN

    • Access the PCM and monitor the TR_PARK_STATPID

    Does PID TR_PARK_STAT indicate the transmission is in mechanical Park override? 

    Yes  Remove the transmission from mechanical Park override. REFER to: Transmission Park by Wire Manual Release .
    No  GO to  H4

  4. H3 CHECK LINE PRESSURE

    NOTE: The shift-by-wire variant of the 10R transmission uses hydraulic pressure to move the park lock pawl valve out of park.

    Is line pressure within specification? 

    Yes  GO to  H4
    No  Use the Line Pressure Diagnosis Chart for further diagnosis. REFER to: Special Testing Procedures .

  5. H4 CHECK THE PARK LOCK PAWL SOLENOID TASV CIRCUIT FOR POWER

    • Ignition OFF.

    • Disconnect Transmission vehicle harness C168A.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C168A-12
      GFD559498Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  H7
    No  GO to  H5

  6. H5 CHECK THE PARK LOCK PAWL SOLENOID TASV CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect PCM C175T.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C168A-12
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 C175T-32

    Is the resistance less than 3 ohms? 

    Yes  GO to  H6
    No  REPAIR the open circuit.

  7. H6 CHECK THE PARK LOCK PAWL SOLENOID TASV CIRCUIT FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C168A-12
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  Refer to PCM GUIDED ROUTINE TESTING
    Internet Explorer version 11 or greater is required to perform this Pinpoint Test. 
    After programming the new PCM, CARRY OUT the transmission strategy download. REFER to: Transmission Strategy Download .
    No  REPAIR the short to ground.

  8. H7 CHECK THE PARK LOCK PAWL SOLENOID CONTROL CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Disconnect PCM C175T.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C168A-26
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 C175T-78

    Is the resistance less than 3 ohms? 

    Yes  GO to  H8
    No  REPAIR the open circuit.

  9. H8 CHECK THE PARK LOCK PAWL SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C168A-26
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  H9
    No  REPAIR the short to ground.

  10. H9 CHECK THE PARK LOCK PAWL SOLENOID CONTROL CIRCUIT FOR A SHORT TO POWER

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C168A-26
      GFD559498Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the short to power.
    No  GO to  H10

  11. H10 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS FOR AN OPEN

    • Ignition OFF.

    • Disconnect Park lock pawl solenoid C178.

    • Disconnect Transmission fluid auxiliary pump C1717.

    • Connect Transmission vehicle harness C168A.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C178-1
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 C175T-32
      C178-2
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 C175T-78

    Are the resistances less than 3 ohms? 

    Yes  GO to  H11
    No  INSTALL a new transmission internal wiring harness (both pieces). REFER to: Transmission Internal Wiring Harness .

  12. H11 CHECK THE TRANSMISSION INTERNAL WIRING HARNESS FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C178-1
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 Ground
      C178-2
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  H12
    No  INSTALL a new transmission internal wiring harness (both pieces). REFER to: Transmission Internal Wiring Harness .

  13. H12 CHECK THE RESISTANCE OF THE PARK LOCK PAWL SOLENOID

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      GFD559501Courtesy of FORD MOTOR COMPANY

      Park lock pawl solenoid component side pin 1
      GFD559497Courtesy of FORD MOTOR COMPANY
      GFD559501Courtesy of FORD MOTOR COMPANY

      Park lock pawl solenoid component side pin 2

    Is the resistance between 17 and 27 ohms? 

    Yes  GO to  H13
    No  INSTALL a new park lock pawl solenoid. REFER to: Park Lock Pawl Solenoid .

  14. H13 CHECK THE PARK LOCK PAWL SOLENOID FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      GFD559501Courtesy of FORD MOTOR COMPANY

      Park lock pawl solenoid component side pin 1
      GFD559497Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  H14
    No  INSTALL a new park lock pawl solenoid. REFER to: Park Lock Pawl Solenoid .

  15. H14 CHECK PARK LOCK PAWL SOLENOID OPERATION

    • Ignition OFF.

    • Connect PCM C175T.

    • Connect Park lock pawl solenoid C178.

    • Connect Transmission fluid auxiliary pump C1717.

    • Push on the park lock pawl solenoid pin with the ignition ON and with the ignition OFF.

    Does the park lock pawl solenoid pin resist motion with the ignition ON and move with the ignition OFF? 

    Yes  The park lock pawl solenoid is operating correctly at this time. For DTC P2888, P2889 and/or P288A, INSPECT and CONNECT all electrical connectors, CLEAR the DTC, then CARRY OUT the KOEOPCM self-test. If DTC P2888, P2889 and/or P288A returns, Refer to PCM GUIDED ROUTINE TESTING
    Internet Explorer version 11 or greater is required to perform this Pinpoint Test. 
    After programming the new PCM, CARRY OUT the transmission strategy download. REFER to: Transmission Strategy Download . For DTC P07E4, P07E6, and/or P288B, RESOLVE the park engagement symptom. REFER to: Diagnosis By Symptom .
    No  INSTALL a new park lock pawl solenoid. REFER to: Park Lock Pawl Solenoid .
scientia non olet · About LEMON Manuals