LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2017 >> Expedition XL, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Parking Aid System >> Diagnosis And Testing >> Parking Aid >> Pinpoint Tests >> Pinpoint Test H : DTC B1B52:12 Or DTC B1B52:14 >> Pinpoint Test H : DTC B1B52:12 Or DTC B1B52:14

Pinpoint Test H : DTC B1B52:12 Or DTC B1B52:14

NOTE: Before disconnecting the PAM or the speaker, verify that the connectors are properly seated and latched.

  1. H1 CHECK THE SPEAKER CONNECTOR FOR CORRECT LATCHING

    • Ignition OFF.
    • Inspect the rear parkng aid speaker connector C4362 for correct latching by pulling on the latched connector.

    Is the connector latched? 

    Yes  GO to  H2.
    No  Correctly latch the connector.

  2. H2 MEASURE THE PARKING AID SPEAKER RESISTANCE

    • Disconnect: Rear Parking Aid Speaker C4362 .
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4362-2
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C4362-1

    Is the resistance between 40 and 60 ohms? 

    Yes  If DTC B1B52:14 was recorded, GO to  H3.If DTC B1B52:12 was recorded, GO to  H6.
    No  INSTALL a new rear parking aid speaker. REFER to Parking Aid Speaker .

  3. H3 CHECK THE REAR PARKING AID SPEAKER CIRCUITS FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4362-1
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground
      C4362-2
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  H4.
    No  REPAIR the circuit in question.

  4. H4 CHECK THE REAR PARKING AID SPEAKER CIRCUITS FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4362-1
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C4014A-6
      C4362-2
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C4014A-2

    Are the resistances less than 3 ohms? 

    Yes  GO to  H5.
    No  REPAIR the circuit in question.

  5. H5 CHECK THE REAR PARKING AID SPEAKER CIRCUITS FOR A SHORT TOGETHER

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4014A-2
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C4014A-6

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  H7.
    No  REPAIR the circuits.

  6. H6 CHECK THE PARKING AID SPEAKER CIRCUITS FOR A SHORT TO VOLTAGE

    • Ignition ON.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4014A-2
      GFD134422Courtesy of FORD MOTOR COMPANY
      		 Ground
      C4014A-6
      GFD134422Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit in question.
    No  GO to  H7.

  7. H7 CHECK FOR CORRECT PAM OPERATION

    • Disconnect and inspect the PAM connectors.
    • Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the PAM 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 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.
scientia non olet · About LEMON Manuals