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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Parking Aid System >> Diagnosis And Testing >> Parking Aid >> Pinpoint Tests >> Pinpoint Test F : B1B52:12, B1B52:14 >> Pinpoint Test F : B1B52:12, B1B52:14

Pinpoint Test F : B1B52:12, B1B52:14

  1. F1 CHECK THE SPEAKER CONNECTOR FOR CORRECT LATCHING

    • Ignition OFF.
    • Inspect the parking aid speaker connector for correct latching by pulling on the latched connector.

    Is the connector latched? 

    Yes  GO to  F2.
    No  Correctly LATCH the connector.

  2. F2 MEASURE THE PARKING AID SPEAKER RESISTANCE

    • Disconnect: Parking Aid Speaker.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      (Component side) C2024-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 (Component side) C2024-1

    Is the resistance between 40 and 60 ohms? 

    Yes  For DTC B1B52:14, GO to  F3. For DTC B1B52:12, GO to  F6.
    No  INSTALL a new parking aid speaker. Refer to Parking Aid Speaker .

  3. F3 CHECK THE PARKING AID SPEAKER CIRCUITRY FOR A SHORT TO GROUND

    • Disconnect: PAM.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3267-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3267-6
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  F4.
    No  REPAIR the circuit in question.

  4. F4 CHECK THE PARKING AID SPEAKER CIRCUITRY FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2024-1
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C3267-6
      C2024-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C3267-2

    Are the resistances less than 3 ohms? 

    Yes  GO to  F5.
    No  REPAIR the circuit in question.

  5. F5 CHECK THE PARKING AID SPEAKER CIRCUITS FOR A SHORT TO EACH OTHER

    • Measure
      Positive Lead Measurement / Action Negative Lead
      C3267-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      		 C3267-6

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  F7.
    No  REPAIR the circuits.

  6. F6 CHECK THE PARKING AID SPEAKER CIRCUITRY FOR A SHORT TO VOLTAGE

    • Disconnect: Parking Aid Speaker.
    • Disconnect: PAM.
    • Ignition ON.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C3267-2
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground
      C3267-6
      GFD33595Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit in question.
    No  GO to  F7.

  7. F7 CHECK FOR CORRECT PAM OPERATION

    • Disconnect and inspect the PAM connector.
    • Repair:
      • 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
    • Reconnect the PAM connector. Make sure it seats and latches 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 PAM. Refer to Parking Aid Module (PAM) .
    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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