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Pinpoint Test S: The Liftgate Passive Entry Feature Is Inoperative

  1. Normal Operation and Fault Conditions 

    REFER to: Handles, Locks, Latches and Entry Systems - Vehicles With: One-Touch Open and Close Front Windows - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    BCM B10C7:01 Interior Trunk Antenna: General Electrical Failure Sets when the BCM detects a fault from the keyless entry rear antenna input.

    Possible Sources 

    • Wiring, terminals or connectors
    • Keyless entry rear antenna
    • BCM

  2. S1 CHECK THE RKE (REMOTE KEYLESS ENTRY) OPERATION

    • Ignition OFF.

    • Close the liftgate.

    • Press the liftgate release button on a key.

    Does the liftgate latch release? 

    Yes  GO to  S2
    No  GO to Pinpoint Test O 

  3. S2 CHECK THE LIFTGATE RELEASE SWITCH INPUT

    • Close the liftgate.

    • Ignition ON.

    • Unlock the doors using the door lock control switch.

    • Press the liftgate release button located at the rear of the vehicle.

    Does the liftgate latch release? 

    Yes  GO to  S3
    No  GO to Pinpoint Test N 

  4. S3 CHECK THE KEYLESS ENTRY REAR ANTENNA

    • Ignition OFF.

    • Disconnect Keyless Entry Rear Antenna C4378.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      GFD574225Courtesy of FORD MOTOR COMPANY

      C4378, pin 1, component side
      GFD574221Courtesy of FORD MOTOR COMPANY
      GFD574225Courtesy of FORD MOTOR COMPANY

      C4378, pin 2, component side

    Is the resistance between 1 and 3 ohms? 

    Yes  GO to  S4
    No  INSTALL a new keyless entry rear antenna.

  5. S4 CHECK THE KEYLESS ENTRY REAR ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE

    • Disconnect BCM C2280E.

    • Ignition ON.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280G-14
      GFD574224Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2280G-6
      GFD574224Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit in question.
    No  GO to  S5

  6. S5 CHECK THE KEYLESS ENTRY REAR ANTENNA CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280G-14
      GFD574221Courtesy of FORD MOTOR COMPANY
      		 Ground
      C2280G-6
      GFD574221Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  S6
    No  REPAIR the circuit in question.

  7. S6 CHECK THE KEYLESS ENTRY REAR ANTENNA CIRCUITS FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280G-14
      GFD574221Courtesy of FORD MOTOR COMPANY
      		 C4378-1
      C2280G-6
      GFD574221Courtesy of FORD MOTOR COMPANY
      		 C4378-2

    Are the resistances less than 3 ohms? 

    Yes  GO to  S7
    No  REPAIR the circuit in question.

  8. S7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Disconnect and inspect all 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 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 service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM. REFER to: BODY CONTROL MODULE (BCM) .
    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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