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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Passive Anti-Theft System (Pats) - With Intelligent Access (IA) >> Diagnosis And Testing >> Anti-Theft >> Pinpoint Tests >> PINPOINT TEST D : The Vehicle Does Not Start With the Intelligent Access (IA) Key in Certain Areas of the Vehicle >> PINPOINT TEST D : The Vehicle Does Not Start With the Intelligent Access (IA) Key in Certain Areas of the Vehicle

PINPOINT TEST D : The Vehicle Does Not Start With the Intelligent Access (IA) Key in Certain Areas of the Vehicle

  1. D1 CHECK THE Intelligent Access (IA) KEY LOCATION

    • Check the location of the Intelligent Access (IA) key and if it is placed in the far corners of the interior of the vehicle, move the Intelligent Access (IA) key out of these areas and attempt to start the vehicle.

    Does the vehicle start? 

    Yes  The system is OK. INFORM the customer of the normal vehicle operation.
    No  GO to  D2.

  2. D2 CHECK FOR ENVIRONMENTAL INTERFERENCE

    • Check for the use of any charger or other wireless device that can cause interference with the Intelligent Access (IA) key. If any device is found, remove the device and attempt to start the engine.

    Does the engine start? 

    Yes  INFORM the customer of the cause of the concern and the normal operation of the vehicle.
    No  GO to  D3.

  3. D3 CHECK THE SUSPECT PASSIVE START ANTENNA

    • Ignition OFF.
    • Disconnect: Suspect Passive Start Antenna.
    • Measure:

      Front 

      Positive Lead Measurement / Action Negative Lead
      C325-1 Component Side
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C325-2 Component Side

      Center 

      Positive Lead Measurement / Action Negative Lead
      C326-1 Component Side
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C326-2 Component Side

      Rear 

      Positive Lead Measurement / Action Negative Lead
      C4378-1 Component Side
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C4378-2 Component Side

    Is the resistance between 1 and 10 ohms? 

    Yes  GO to  D4.
    No  INSTALL a new passive start antenna. REFER to Passive Start Antenna - Front , Passive Start Antenna - Center  or Passive Start Antenna - Rear .

  4. D4 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR A SHORT TO VOLTAGE

    • Disconnect: RFA Module C2153A.
    • Place an Intelligent Access (IA) key in the backup slot and press the START/STOP switch to switch the ignition to ON.
    • For a front antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C325-1
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground
      C325-2
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground
    • For a center antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C326-1
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground
      C326-2
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground
    • For a rear antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C4378-1
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground
      C4378-2
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit in question.
    No  GO to  D5.

  5. D5 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.
    • For a front antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C325-1
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C325-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
    • For a center antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C326-1
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C326-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
    • For a rear antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C4378-1
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C4378-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  D6.
    No  REPAIR the circuit in question.

  6. D6 CHECK THE PASSIVE START ANTENNA CIRCUITS FOR AN OPEN

    • For a front antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C325-1
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2153A-1
      C325-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2153A-2
    • For a center antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C326-1
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2153A-3
      C326-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2153A-4
    • For a rear antenna, measure:
      Positive Lead Measurement / Action Negative Lead
      C4378-1
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2153A-5
      C4378-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C2153A-14

    Are the resistances less than 3 ohms? 

    Yes  GO to  D7.
    No  REPAIR the circuit in question.

  7. D7 CHECK FOR CORRECT RFA MODULE OPERATION

    • Ignition OFF.
    • Disconnect and inspect all RFA module 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 RFA module connectors. 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 TSBs. If a TSB exists for this concern, DISCONTINUE this test and follow TSB instructions. If no TSBs address this concern, INSTALL a new RFA module. REFER to Multifunction Electronic Modules .
    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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