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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 279 (Parking Aid System - Active Park Assist) >> 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

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
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? 

    1. Yes  : GO to B2  .
    2. 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? 

    1. Yes  : GO to B3  .
    2. 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  OHM C1607-1 
      C3267-7  OHM C1607-2 
      C3267-12  OHM C1607-3 
    • For DTC  B129D:14, measure:
      Positive Lead Measurement/Action Negative Lead
      C3267-9  OHM C1608-1 
      C3267-8  OHM C1608-2 
      C3267-12  OHM C1608-3 

    Are the resistances less than 3 ohms? 

    1. Yes  : GO to B4  .
    2. 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  OHM Ground
    • For DTC  B129D:14, measure:
      Positive Lead Measurement/Action Negative Lead
      C1608-2  OHM Ground

    Are the resistances greater than 10, 000 ohms? 

    1. 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 .
    2. 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? 

    1. 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) .
    2. 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.
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