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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1431 (Parking Aid System - Active Park Assist) >> Diagnosis And Testing >> Active Park Assist >> Pinpoint Tests >> Pinpoint Test B: DTC B129C:14 Or DTC B129D:14 >> Pinpoint Test B: DTC B129C:14 Or DTC B129D:14

Pinpoint Test B: DTC B129C:14 Or DTC B129D:14

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. 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 BOTH THE CONTINUOUS AND ON-DEMAND PAM SELF-TESTS 
    • Check the PAM  DTCs from the continuous and on-demand self-tests.
    • 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 DTC CHARTS .

  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. TEST the system for normal operation.
  3. B3 CHECK THE ACTIVE PARK ASSIST SENSOR CIRCUITRY FOR OPENS 
    • Ignition OFF.
    • Disconnect: Suspect Active Park Assist Sensor C1607 (Left) and/or C1608 (Right).
    • Disconnect: PAM  C4014.
    • Measure the resistance between the PAM  , harness side and the suspect active park assist sensor, harness side as follows:
      CONNECTOR-PIN REFERENCE CHART

      DTC Active Park Assist Sensor PAM  Connector-Pin Sensor Connector-Pin Circuit
      B129C:14 Left C4014-9 C1607-1 LMP07 (BU/WH)
      B129C:14 Left C4014-7 C1607-2 VMP20 (GY/OG)
      B129C:14 Left C4014-12 C1607-3 RMP07 (GN/WH)
      B129D:14 Right C4014-9 C1608-1 LMP07 (BU/WH)
      B129D:14 Right C4014-8 C1608-2 VMP21 (WH/BN)
      B129D:14 Right C4014-12 C1608-3 RMP07 (GN/WH)
      Fig 1: Measuring Resistance Between PAM And Suspect Active Park Assist Sensor, Harness Side
      G06390753Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes:  GO to B4  .
    • No:  REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.
  4. B4 CHECK THE ACTIVE PARK ASSIST SENSOR CIRCUITRY FOR SHORTS TO GROUND 
    • Measure the resistance between the suspect active park assist sensor, harness side and ground as follows:
      CONNECTOR-PIN REFERENCE CHART

      DTC Active Park Assist Sensor Connector-Pin Circuit
      B129C:14 Left C1607-2 VMP20 (GY/OG)
      B129C:14 Left C1607-3 RMP07 (GN/WH)
      B129D:14 Right C1608-2 VMP21 (WH/BN)
      B129D:14 Right C1608-3 RMP07 (GN/WH)
      Fig 2: Measuring Resistance Between Suspect Active Park Assist Sensor, Harness Side And Ground
      G06291104Courtesy of FORD MOTOR CO.
    • 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 . CLEAR the DTCs. TEST the system for normal operation.

    • No:  REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.
  5. B5 CHECK FOR CORRECT PAM OPERATION 
    • Disconnect the PAM  connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the PAM  connector and make sure it seats correctly.
    • Operate the system and determine if the concern is still present.
    • Is the concern still present? 
    • Yes:  INSTALL a new PAM  . REFER to PARKING AID . TEST the system for normal operation.
    • No:  The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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