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Pinpoint Test B: The Parking Aid Is Inoperative/Does Not Operate Correctly

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. B1 RETRIEVE THE RECORDED DTCS FROM BOTH THE CONTINUOUS AND ON-DEMAND PARKING AID MODULE SELF-TESTS 
    • Check the recorded parking aid module DTCs from the continuous and on-demand self-tests.
    • Are any parking aid module DTCs recorded? 
    1. Yes  : REFER to the PARKING AID DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
    2. No  : GO to B2.
  2. B2 CHECK THE PARKING AID SENSORS FOR CORRECT ALIGNMENT 
    NOTE: If the vehicle was in an accident, the parking aid sensors may not be aligned correctly.
    • Check the bumper for correct alignment.
    • Check the parking aid sensors and holders for correct adjustment. Refer to AZIMUTH SYSTEM CHECK  and ELEVATION SYSTEM CHECK .
    • Are the bumper and parking aid sensors correctly aligned? 
    1. Yes  : GO to B3.
    2. No  : REALIGN or INSTALL a new bumper. If the vehicle was in an accident, further body work may be required to bring the parking aid sensors into correct alignment.
  3. B3 CHECK THE REVERSING LAMPS OPERATION 
    • Apply the parking brake.
    • Key in ON position.
    • Select REVERSE.
    • Check the reversing lamps operation.
    • Do the reversing lamps operate correctly? 
    1. Yes  : GO to B4.
    2. No  REFER to EXTERIOR LIGHTING to continue diagnosis of the reversing lamps.
  4. B4 CHECK CIRCUIT 140 (BK/PK) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: Parking Aid Module C4014.
    • Key in ON position.
    • Apply the parking brake.
    • Select REVERSE.
    • Measure the voltage between the parking aid module C4014, pin 9, circuit 140 (BK/PK), harness side and ground.
      Fig 1: Checking Circuit 140 (BK/PK) For Voltage
      G03910798Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. Yes  : GO to B5.
    2. No  : REPAIR the circuit. TEST the system for normal operation.
  5. B5 CHECK CIRCUIT 1435 (DG/VT) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Disconnect: Parking Aid Switch C2035.
    • Measure the resistance between the parking aid switch C2035 pin 2, circuit 1435 (DG/VT), harness side and ground.
      Fig 2: Checking Circuit 1435 (DG/VT) For Short To Ground
      G03910799Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. Yes  : GO to B6.
    2. No  : REPAIR the circuit. TEST the system for normal operation.
  6. B6 CHECK CIRCUIT 676 (PK/OG) AND 57 (BK) FOR AN OPEN 
    • Measure the resistance between the parking aid switch C2035 pin 1, circuit 676 (PK/OG), harness side and ground; and between the parking aid switch C2035 pin 4, circuit 57 (BK), harness side and ground.
      Fig 3: Checking Circuit 676 (PK/OG) And 57 (BK) For Open
      G03910800Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. Yes  : GO to B7.
    2. No  : REPAIR the circuit in question. TEST the system for normal operation.
  7. B7 CHECK CIRCUIT 1435 (DG/VT) FOR AN OPEN 
    • Measure the resistance between the parking aid module C4014 pin 7, circuit 1435 (DG/VT), harness side and the parking aid switch C2035 pin 2, circuit 1435 (DG/VT), harness side.
      Fig 4: Checking Circuit 1435 (DG/VT) For Open
      G03910801Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes  : GO to B8.
    2. No  : REPAIR the circuit. TEST the system for normal operation.
  8. B8 CHECK PARKING AID SWITCH FOR AN OPEN 
    • While pressing and releasing the parking aid switch, measure the resistance between the parking aid switch C2035 pin 1, component side and the parking aid switch C2035 pin 2, component side.
      Fig 5: Checking Parking Aid Switch For Open
      G03910802Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms with the switch pressed and greater than 10,000 ohms with the switch released? 
    1. Yes  : GO to B9.
    2. No  : INSTALL a new parking aid switch. REFER to PARKING AID SWITCH . TEST the system for normal operation.
  9. B9 CHECK FOR CORRECT PARKING AID MODULE OPERATION 
    • Disconnect the parking aid module connector.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect the parking aid module 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 parking aid module. REFER to PARKING AID MODULE . 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.
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