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Pinpoint Test E: B1B57:11

  1. E1 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  E2
    No  REPAIR or INSTALL a new bumper wiring harness.

  2. E2 CHECK THE LHF (LEFT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • For vehicles without active park assist disconnect: LHF Outer Parking Aid Sensor C1428.

    • For vehicles with active park assist disconnect: LHF Outer Parking Aid Sensor C1905.

    • 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  E3
    No  INSTALL a new LHF outer parking aid sensor. Refer to: Front Parking Aid Sensor  .

  3. E3 CHECK THE LHF (LEFT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • For vehicles without active park assist disconnect: LHF Inner Parking Aid Sensor C1429.

    • For vehicles with active park assist disconnect: LHF Inner Parking Aid Sensor C1906.

    • 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  E4 If the vehicle is NOT equipped with active park assist, GO to  E6
    No  INSTALL a new LHF inner parking aid sensor. Refer to: Front Parking Aid Sensor  .

  4. E4 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  E5
    No  INSTALL a new LHF front active park assist sensor. Refer to: Front Parking Aid Sensor  .

  5. E5 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  E6
    No  INSTALL a new RHF active park assist sensor. Refer to: Front Parking Aid Sensor  .

  6. E6 CHECK THE RHF (RIGHT-HAND FRONT) INNER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • For vehicles without active park assist disconnect: RHF Inner Parking Aid Sensor C1430.

    • For vehicles with active park assist disconnect: RHF Inner Parking Aid Sensor C1907.

    • 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  E7
    No  INSTALL a new RHF inner parking aid sensor. Refer to: Front Parking Aid Sensor  .

  7. E7 CHECK THE RHF (RIGHT-HAND FRONT) OUTER PARKING AID SENSOR FOR AN INTERNAL SHORT

    • Ignition OFF.

    • For vehicles without active park assist disconnect: RHF Outer Parking Aid Sensor C1431.

    • For vehicles with active park assist disconnect: RHF Outer Parking Aid Sensor C1908.

    • 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  E8
    No  INSTALL a new RHF outer parking aid sensor. Refer to: Front Parking Aid Sensor  .

  8. E8 CHECK THE FRONT PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.

    • Disconnect: BCM C2280F (vehicles without active park assist)

    • Disconnect: PAM C4226B (vehicles with active park assist)

    • For vehicles without active park assist measure:
      Positive Lead Measurement / Action Negative Lead
      C2280F-7
      GFD583586Courtesy of FORD MOTOR COMPANY
      		 Ground

    • For vehicles with active park assist measure:
      Positive Lead Measurement / Action Negative Lead
      C4226B-2
      GFD583586Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  E9
    No  REPAIR the circuit.

  9. E9 CHECK THE FRONT PARKING AID SENSOR VOLTAGE SUPPLY CIRCUIT AND GROUND CIRCUIT FOR A SHORT TOGETHER

    • For vehicles without active park assist measure:
      Positive Lead Measurement / Action Negative Lead
      C2280F-7
      GFD583586Courtesy of FORD MOTOR COMPANY
      		 C2280F-35

    • For vehicles with active park assist measure:
      Positive Lead Measurement / Action Negative Lead
      C4226B-2
      GFD583586Courtesy of FORD MOTOR COMPANY
      		 C4226B-12

    Is the resistance greater than 10, 000 ohms? 

    Yes  For vehicles without active park assist, GO to  E10 For vehicles with active park assist, GO to  E11
    No  REPAIR the circuit.

  10. E10 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all BCM 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 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 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,
    No  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

  11. E11 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all PAM 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 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 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 PAM. Refer to: Parking Assist Control Module (PAM)  .
    No  The system is operating correctly at this time. The 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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