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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 345 (Four-Wheel Drive Systems (1 Of 2)) >> Diagnosis And Testing >> Four-Wheel Drive Systems - Vehicles With: 2-Speed Torque On Demand Transfer Case >> Pinpoint Tests >> Pinpoint Test K : P1825:00, P1826:00 And P1827:00 >> Pinpoint Test K: P1825:00, P1826:00 And P1827:00

Pinpoint Test K: P1825:00, P1826:00 And P1827:00

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

  1. K1 CHECK FOR TCCM CLUTCH SOLENOID DTCS

    WARNING: When directed to drive the vehicle as part of this test, drive the vehicle on a hard surface in an area without traffic to prevent a crash. Failure to follow these instructions may result in personal injury.

    • Ignition ON.

    • Enter the following diagnostic mode on the scan tool: TCCM Self-Test.

    Are any DTCs present? 

    Yes  For DTC P1825:00, GO to  K3 For DTC P1826:00, GO to  K4 For DTC P1827:00, GO to  K2
    No  System is operating correctly a this time. IGNORE the Diagnostic Trouble Codes (DTCs). REFER to the Symptom Chart: Four-Wheel Drive Systems 

  2. K2 CHECK CLUTCH CONTROL CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.

    • Disconnect Transfer Case C350.

    • Disconnect TCCM C2371B.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C350-2
      GFD464767Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  K3
    No  REPAIR the circuit. CLEAR the DTCs.

  3. K3 CHECK CLUTCH CONTROL CIRCUIT FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C350-2
      GFD464767Courtesy of FORD MOTOR COMPANY
      		 C2371B-10

    Is the resistance less than 3 ohms? 

    Yes  GO to  K4
    No  REPAIR the circuit. CLEAR the DTCs.

  4. K4 CHECK CLUTCH CONTROL CIRCUIT FOR A SHORT TO VOLTAGE

    • Connect Transfer Case C350.

    • Connect TCCM C2371B.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      Backprobe Transfer Case C350-2
      GFD464766Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage approximately 0.2 to 0.4 volt? 

    Yes  REPAIR the circuit. CLEAR the DTCs.
    No  GO to  K5

  5. K5 CHECK TRANSFER CASE CLUTCH

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C350-2
      GFD464767Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance between 2-6 ohms? 

    Yes  GO to  K6
    No  If all circuits ok, INSTALL a new Transfer Case clutch field coil, For 6R80 : REFER to: Transfer Case - Vehicles With: 2-Speed Torque On Demand Transfer Case . For 10R80 : REFER to: Transfer Case - Vehicles With: 2-Speed Torque On Demand Transfer Case .

  6. K6 CHECK FOR CORRECT TCCM OPERATION

    • Ignition OFF.

    • Disconnect and inspect all TCCM connectors.

    • Check for the following:

      • corrosion (install new connector or terminals - clean module pins)

      • damaged or bent pins - install new terminals/pins

      • pushed-out pins - install new pins as necessary

    • Connect all TCCM connectors. Make sure they seat and latch correctly.

    • Operate the system and verify the concern is still present.

    Is the concern still present? 

    Yes  INSTALL a new TCCM. REFER to: Transfer Case Control Module (TCCM) .
    No  The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of the connector or pin issues.
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