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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Active Park Assist System >> Diagnosis And Testing >> Active Park Assist >> Pinpoint Tests >> PINPOINT TEST B : B129C:14 Or B129D:14 >> PINPOINT TEST B : B129C:14 Or B129D:14

PINPOINT TEST B : B129C:14 Or B129D:14

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

  1. B1 RETRIEVE THE DTCs FROM THE PAM SELF-TEST

    • Using a scan tool, perform the PAM self-test.

    Are multiple DTCs recorded? 

    Yes  GO to  B2.
    No  For DTC B129C:14 or DTC B129D:14, GO to  B3. For all other DTCs, REFER to Parking Aid .
  2. B2 CHECK THE FRONT BUMPER WIRING HARNESS

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

    Is the bumper wiring harness OK? 

    Yes  GO to  B3.
    No  REPAIR or INSTALL a new bumper wiring harness. CLEAR the DTCs.
  3. B3 CHECK THE ACTIVE PARK ASSIST SENSOR CIRCUITRY FOR OPENS

    • Ignition OFF.
    • Disconnect: Suspect Active Park Assist Sensor.
    • Disconnect: PAM.
    • For DTC B129C:14, measure:
      Positive Lead Measurement / Action Negative Lead
      C3267-9
      GFD33596Courtesy of FORD MOTOR COMPANY
      C1607-1
      C3267-7
      GFD33596Courtesy of FORD MOTOR COMPANY
      C1607-2
      C3267-12
      GFD33596Courtesy of FORD MOTOR COMPANY
      C1607-3
    • For DTC B129D:14, measure:
      Positive Lead Measurement / Action Negative Lead
      C3267-9
      GFD33596Courtesy of FORD MOTOR COMPANY
      C1608-1
      C3267-8
      GFD33596Courtesy of FORD MOTOR COMPANY
      C1608-2
      C3267-12
      GFD33596Courtesy of FORD MOTOR COMPANY
      C1608-3

    Are the resistances less than 3 ohms? 

    Yes  GO to  B4.
    No  REPAIR the circuit in question.
  4. B4 CHECK THE ACTIVE PARK ASSIST SENSOR CIRCUITRY FOR SHORTS TO GROUND

    • For DTC B129C:14, measure:
      Positive Lead Measurement / Action Negative Lead
      C1607-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      Ground
    • For DTC B129D:14, measure:
      Positive Lead Measurement / Action Negative Lead
      C1608-2
      GFD33596Courtesy of FORD MOTOR COMPANY
      Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  If both of the active park assist sensors recorded DTCs, GO to  B5. Otherwise, INSTALL a new sensor for the one in question. Refer to Active Park Assist Sensor .
    No  REPAIR the circuit in question.
  5. B5 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 .
    No  The system is operating correctly at this time. Concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.