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Home >> Ford >> 2018 >> Transit Connect XL, Van Cargo >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Handles, Locks, Latches And Entry Systems >> Diagnosis And Testing >> Locks, Latches and Entry Systems - Vehicles With: One-Touch Open Driver Window >> Pinpoint Tests >> Pinpoint Test N : The Liftgate/Luggage Compartment Lid Latch Release Is Inoperative >> Pinpoint Test N : The Liftgate/Luggage Compartment Lid Latch Release Is Inoperative

Pinpoint Test N : The Liftgate/Luggage Compartment Lid Latch Release Is Inoperative

  1. N1 CHECK FOR BCM (BODY CONTROL MODULE) DTC (DIAGNOSTIC TROUBLE CODE) B12E8:23

    • Ignition ON.

    • Using a diagnostic scan tool, perform the BCM self-test.

    Is DTC B12E8:23 present? 

    Yes  GO to  N2
    No  GO to  N4

  2. N2 CHECK THE LIFTGATE RELEASE SWITCH

    • Ignition OFF.

    • Disconnect Liftgate Release Switch C4353.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the BCM self-test.

    Is DTC B12E8:23 still present? 

    Yes  GO to  N3
    No  INSTALL a new liftgate release switch.

  3. N3 CHECK THE LIFTGATE RELEASE INPUT CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.

    • Disconnect BCM C2280B.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280B-49
      GFD305673Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  N11
    No  REPAIR the circuit.

  4. N4 CHECK THE BCM (BODY CONTROL MODULE) LIFTGATE RELEASE SWITCH INPUT USING THE TRUNK/LIFTGATE RELEASE SWITCH (TRNK/LG_R_SW) PID (PARAMETER IDENTIFICATION)

    • Using a diagnostic scan tool, view the BCM Parameter Identifications (PIDs).

    • Using a diagnostic scan tool, monitor the BCMPID TRNK/LG_R_SW while pressing the liftgate release switch.

    Does the PID indicate the switch is pressed? 

    Yes  VERIFY BCM fuse 65 (10A) is OK. If OK, GO to  N8
    If not OK, REFER to OEM Electrical Wiring Diagram Introduction to identify the possible causes of the circuit short.
    No  GO to  N5

  5. N5 CHECK THE RELEASE SWITCH

    • Ignition OFF.

    • Disconnect Liftgate Release Switch C4353.

    • Unlock the doors using a door lock control switch.

    • Momentarily connect:
      Positive Lead Measurement / Action Negative Lead
      C4353-2
      GFD306452Courtesy of FORD MOTOR COMPANY
      		 C4353-1

    Does the liftgate latch release? 

    Yes  INSTALL a new liftgate release switch.
    No  GO to  N6

  6. N6 CHECK THE RELEASE SWITCH GROUND CIRCUIT FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4353-1
      GFD305673Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  REPAIR the circuit.
    No  GO to  N7

  7. N7 CHECK THE RELEASE SWITCH INPUT CIRCUIT FOR AN OPEN

    • Disconnect BCM C2280B.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280B-49
      GFD305673Courtesy of FORD MOTOR COMPANY
      		 C4353-2

    Is the resistance less than 3 ohms? 

    Yes  GO to  N11
    No  REPAIR the circuit.

  8. N8 CHECK THE LIFTGATE LATCH

    NOTE: The following step uses a test lamp to simulate normal circuit loads. Use only a Rotunda Test Lamp (SGT27000) or 250-300mA incandescent bulb test lamp. To avoid connector terminal damage, use the Rotunda Flex Probe kit for the test lamp probe connection to the vehicle. Do not use the test lamp probe directly on any connector.

    • Ignition OFF.

    • Disconnect Liftgate Latch C4339.

    • Ignition ON.

    • Unlock the doors using a door lock control switch.

    • Connect:
      Positive Lead Measurement / Action Negative Lead
      C4339-1
      GFD306451Courtesy of FORD MOTOR COMPANY
      		 C4339-2

    • NOTE: The BCM only supplies voltage to the liftgate latch momentarily. It is important to monitor the test lamp while active commanding the latch to release.

      Observe the test lamp while pressing the liftgate release switch.

    Does the test lamp momentarily illuminate? 

    Yes  INSTALL a new liftgate latch.
    No  GO to  N9

  9. N9 CHECK THE LATCH GROUND CIRCUIT FOR AN OPEN

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4339-2
      GFD305673Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  GO to  N10
    No  REPAIR the circuit.

  10. N10 CHECK THE BCM (BODY CONTROL MODULE) LIFTGATE LATCH RELEASE OUTPUT CIRCUIT FOR AN OPEN

    • Disconnect BCM C2280E.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-12
      GFD305673Courtesy of FORD MOTOR COMPANY
      		 C4339-1

    Is the resistance less than 3 ohms? 

    Yes  GO to  N11
    No  REPAIR the circuit.

  11. N11 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Disconnect and inspect all of the BCM connectors.

    • Repair:

      • corrosion (install new connectors or terminals-clean module pins)
      • damaged or bent pins- install new terminals pins
      • pushed-out pins- install new pins as necessary

    • Reconnect all the BCM) connectors and make sure they seat and latch correctly.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Refer to BCM Guided Routine Testing .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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