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Home >> Ford >> 2002 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2996 (Warning System - Parking Aid -- F250-F550 Super Duty) >> 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

WARNING: This page is about a different car, the 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 Ford Cab & Chassis. 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. 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 Pin 2 Connector End View
      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 And Ground Connector End View
      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 And Ground Connector End View
      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: Measuring Resistance Between PAM And Parking Aid Speaker Connector End View
      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: Measuring Resistance Between PAM And Parking Aid Speaker Connector End View
      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 C4014-2 And Ground Connector End View
      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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