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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Parking Aid System) >> Diagnosis And Testing >> Parking Aid >> Pinpoint Tests >> Pinpoint Test F: DTCs B1B52:12 and B1B52:14 >> PINPOINT TEST F: DTCs B1B52:12 AND B1B52:14

PINPOINT TEST F: DTCs B1B52:12 AND B1B52:14

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NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. F1 CHECK THE RECORDED DTCs FROM THE PAM SELF-TEST 
    • Ignition ON.
    • Check the recorded PAM DTCs from the self-test.
    • Are parking aid DTCs other than B1B52:12 or B1B52:14 present? 
    1. Yes  : DIAGNOSE other DTCs first. REFER to DTC CHARTS .
    2. No  : GO to F2.
  2. F2 MEASURE THE PARKING AID SPEAKER RESISTANCE 
    • Disconnect: Parking Aid Speaker C2024.
    • Measure the resistance between the parking aid speaker pin 1, component side and the parking aid speaker pin 2, component side.
      Fig 1: Measuring Resistance Between Parking Aid Speaker Pin 1 And Parking Aid Speaker Pin 2, Component Side
      G06098928Courtesy of FORD MOTOR CO.
    • Is the resistance between 40 and 60 ohms? 
    1. Yes  : For DTC B1B52:14, GO to F3.

      For DTC B1B52:12, GO to  F7.

    2. No  : INSTALL a new parking aid speaker. REFER to PARKING AID MODULE (PAM) . CLEAR the DTCs. TEST the system for normal operation.
  3. F3 CHECK THE PARKING AID SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND 
    • Connect: Parking Aid Speaker C2024.
    • Disconnect: PAM C2023.
    • Measure the resistance between the PAM C2023-2, circuit CMP09 (BN/BU), harness side and ground.
      Fig 2: Measuring Resistance Between PAM C2023-2, Circuit CMP09 (BN/BU) And Ground
      G06075428Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
    1. Yes  : GO to  F5.
    2. No  : GO to F4.
  4. F4 CHECK THE PARKING AID SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND WITH THE PARKING AID SPEAKER DISCONNECTED 
    • Disconnect: Parking Aid Speaker C2024.
    • Measure the resistance between the PAM C2023-2, circuit CMP09 (BN/BU), harness side and ground.
      Fig 3: Measuring Resistance Between PAM C2023-2, Circuit CMP09 (BN/BU) And Ground
      G06075428Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10, 000 ohms? 
    1. Yes  : REPAIR circuit RMP09 (BU/GN). CLEAR the DTCs. TEST the system for normal operation.
    2. No  : REPAIR circuit CMP09 (BN/BU). CLEAR the DTCs. TEST the system for normal operation.
  5. F5 CHECK THE PARKING AID SPEAKER (+) CIRCUIT FOR AN OPEN 
    • Disconnect: Parking Aid Speaker C2024.
    • Measure the resistance between the parking aid speaker C2024-2, circuit CMP09 (BN/BU), harness side and the PAM C2023-2, circuit CMP09 (BN/BU), harness side.
      Fig 4: Checking Parking Aid Speaker (+) Circuit For Open
      G06075430Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes  : GO to F6.
    2. No  : REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
  6. F6 CHECK THE PARKING AID SPEAKER (-) CIRCUIT FOR AN OPEN 
    • Measure the resistance between the parking aid speaker C2024-1, circuit RMP09 (BU/GN), harness side and the PAM C2023-6, circuit RMP09 (BU/GN), harness side.
      Fig 5: Checking Parking Aid Speaker (-) Circuit For Open
      G06075437Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes  : GO to  F8.
    2. No  : REPAIR the circuit. CLEAR the DTCs. TEST the system for normal operation.
  7. F7 CHECK THE PARKING AID SPEAKER CIRCUITRY FOR SHORTS TO VOLTAGE 
    • Ignition ON.
    • Measure the voltage between the PAM C2023-2, circuit CMP09 (BN/BU), harness side and ground; and between the PAM C2023-6, circuit RMP09 (BU/GN), harness side and ground.
      Fig 6: Measuring Voltage Between PAM C2023-2, Circuit CMP09 (BN/BU) And Ground
      G06075438Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    1. Yes  : REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.
    2. No  : GO to F8.
  8. F8 CHECK FOR CORRECT PAM OPERATION 
    • Connect: All Disconnected Connectors.
    • 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? 
    1. Yes  : INSTALL a new PAM. REFER to PARKING AID MODULE (PAM) . CLEAR the DTCs. TEST the system for normal operation.
    2. No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
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