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Home >> Ford >> 2014 >> Flex SEL, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Parking Aid System - Audible >> Diagnosis And Testing >> Parking Aid >> Pinpoint Tests >> Pinpoint Test E: DTC B1B52:12 Or DTC B1B52:14 >> Pinpoint Test E: DTC B1B52:12 Or DTC B1B52:14

Pinpoint Test E: DTC B1B52:12 Or DTC B1B52:14

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. E1 CHECK THE SPEAKER CONNECTOR FOR CORRECT LATCHING 
    • Ignition OFF.
    • Inspect the parking aid speaker connector C4015  for correct latching by pulling on the latched connector.

    Is the connector latched? 

    • Yes  : GO to E2  .
    • No  : Correctly latch the connector.
  2. E2 MEASURE THE PARKING AID SPEAKER RESISTANCE 
    • Disconnect: Rear Parking Aid Speaker C4015  .
    • Measure the component side resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C4015 pin 2 - C4015 pin 1 -
      Fig 1: Measuring Parking Aid Speaker Resistance
      G06075427Courtesy of FORD MOTOR CO.

    Is the resistance between 40 and 60 ohms? 

    • Yes  : If DTC B1B52:14 was recorded, GO to E3  .

      If DTC B1B52:12 was recorded, GO to  E6.

    • No  : INSTALL a new parking aid speaker. REFER to PARKING AID MODULE (PAM) .
  3. E3 CHECK THE REAR PARKING AID SPEAKER CIRCUITS FOR A SHORT TO GROUND 
    • Disconnect: PAM C4014  .
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C4014-2  CMP09 (BN/BU) - Ground
      C4014-6  RMP09 (BU/GN) - Ground
      Fig 2: Identifying Rear Parking Aid Speaker Connector Pins
      G09573028Courtesy of FORD MOTOR CO.

    Are the resistances greater than 10, 000 ohms? 

    • Yes  : GO to E4  .
    • No  : REPAIR the circuit in question.
  4. E4 CHECK THE REAR PARKING AID SPEAKER CIRCUITS FOR AN OPEN 
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C4014-2  CMP09 (BN/BU) C4015-2  CMP09 (BN/BU)
      C4014-6  RMP09 (BU/GN) C4015-1  RMP09 (BU/GN)
      Fig 3: Checking Rear Parking Aid Speaker Circuit
      G08616753Courtesy of FORD MOTOR CO.

    Are the resistances less than 3 ohms? 

    • Yes  : GO to E5  .
    • No  : REPAIR the circuit in question.
  5. E5 CHECK THE PARKING AID SPEAKER CIRCUITS FOR A SHORT TO EACH OTHER 
    • Measure the resistance  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C4014-2  CMP09 (BN/BU) C4014-6  RMP09 (BU/GN)
      Fig 4: Identifying Parking Aid Speaker Connector Pins
      G09573030Courtesy of FORD MOTOR CO.

    Is the resistance greater than 10, 000 ohms? 

    • Yes  : GO to  E7.
    • No  : REPAIR the circuits.
  6. E6 CHECK THE PARKING AID SPEAKER CIRCUITRY FOR A SHORT TO VOLTAGE 
    • Disconnect: PAM C4014  .
    • Ignition ON.
    • Measure the voltage  between:
      Positive Lead Negative Lead
      Pin Circuit Pin Circuit
      C4014-2  CMP09 (BN/BU) - Ground
      C4014-6  RMP09 (BU/GN) - Ground
      Fig 5: Identifying Parking Aid Speaker Connector Pins
      G09573031Courtesy of FORD MOTOR CO.

    Is any voltage present? 

    • Yes  : REPAIR the circuit in question.
    • No  : GO to E7  .
  7. E7 CHECK FOR CORRECT PAM OPERATION 
    • Disconnect and inspect the PAM  connector.
    • Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged 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 MODULE (PAM) .
    • No  : The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.