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Pinpoint Test B: B1B57:11

  1. B1 CHECK THE FRONT BUMPER WIRING HARNESS

    • Ignition OFF.

    • Inspect the front bumper wiring harness for opens, shorts, grounds, or corrosion.

    Is the front bumper wiring harness OK? 

    Yes  GO to  B2
    No  REPAIR or INSTALL a new bumper wiring harness.

  2. B2 CHECK THE LHF (LEFT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Disconnect: LHF Front Outer Parking Aid Sensor C1428.

    • Ignition ON.

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

    Is DTC B1B57:11 present? 

    Yes  GO to  B3
    No  INSTALL a new LHF outer parking aid sensor. REFER to: Front Parking Aid Sensor 

  3. B3 CHECK THE LHF (LEFT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • Disconnect:LHF Inner Parking Aid Sensor C1429.

    • Ignition ON.

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

    Is DTC B1B57:11 present? 

    Yes  If the vehicle is equipped with active park assist, GO to  B4 If the vehicle is NOT equipped with active park assist, GO to  B6
    No  INSTALL a new LHF inner parking aid sensor. REFER to: Front Parking Aid Sensor 

  4. B4 CHECK THE LHF (LEFT-HAND FRONT) ACTIVE PARK ASSIST SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • Disconnect: LHF active park assist sensor C1607.

    • Ignition ON.

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

    Is DTC B1B57:11 present? 

    Yes  GO to  B5
    No  INSTALL a new LHF front active park assist sensor. REFER to: Front Parking Aid Sensor 

  5. B5 CHECK THE RHF (RIGHT-HAND FRONT) ACTIVE PARK ASSIST SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • Disconnect: RHF active park assist sensor C1608.

    • Ignition ON.

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

    Is DTC B1B57:11 present? 

    Yes  GO to  B6
    No  INSTALL a new RHF active park assist sensor. REFER to: Front Parking Aid Sensor 

  6. B6 CHECK THE RHF (RIGHT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • Disconnect: RHF inner parking aid sensor C1430.

    • Ignition ON.

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

    Is DTC B1B57:11 present? 

    Yes  GO to  B7
    No  INSTALL a new RHF inner parking aid sensor. REFER to: Front Parking Aid Sensor 

  7. B7 CHECK THE RHF (RIGHT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • Disconnect: RHF Outer Parking Aid Sensor C1431.

    • Ignition ON.

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the PAM self-test.

    Is DTC B1B57:11 present? 

    Yes  GO to  B8
    No  INSTALL a new RHF outer parking aid sensor. REFER to: Front Parking Aid Sensor 

  8. B8 CHECK THE FRONT PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.

    • Disconnect: BCM C2280C.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280C-7
      GFD597123Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  B9
    No  REPAIR the circuit.

  9. B9 CHECK THE FRONT PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280C-7
      GFD597123Courtesy of FORD MOTOR COMPANY
      		 C2280C-35

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  B10
    No  REPAIR the circuit.

  10. B10 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all BCM and related in-line connectors.

    • 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 BCM and related in-line 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSB addresses this concern, A guided routine is not applicable for this vehicle and market. Replace the component that was faulted through diagnosis.
    No  The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
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