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Home >> Ford >> 2012 >> Explorer Limited, 3.5 8, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 194 (Parking Aid System) >> Diagnosis And Testing >> Parking Aid - Video >> Pinpoint Tests >> Pinpoint Test G: The Rear Video Is Inoperative >> Pinpoint Test G: The Rear Video Is Inoperative

Pinpoint Test G: The Rear Video Is Inoperative

WARNING: This page is about a different car, the 2013 Ford Mustang. 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.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .
  1. G1 CHECK AND CLEAN THE REAR VIDEO CAMERA LENS 
    • Clean and make sure that the video camera lens is clear of any debris.
    • Test the video camera system and verify the camera image.
    • Is the video camera concern still present? 
    • Yes  : Vehicles equipped with navigation, GO to  G8.

      Vehicles equipped without navigation, GO to G2.

    • No  : The system is operating correctly at this time. The concern was caused by a dirty camera lens.
  2. G2 CHECK THE REVERSING LAMPS OPERATION 
    • Check the operation of the reversing lamps.
    • Do the reversing lamps operate correctly? 
  3. G3 CHECK FOR A VIDEO CAMERA SIGNAL 
    • Ignition OFF.
    • Apply the parking brake.
    • Ignition ON.
    • Select REVERSE.
    • Observe the auto-dimming interior mirror.
    • Does the auto-dimming interior mirror momentarily display a blue screen then turn off? 
    • Yes  : The auto-dimming interior mirror is functional. There is no signal from the video camera. GO to  G10.
    • No  : GO to G4.
  4. G4 CHECK THE AUTO-DIMMING INTERIOR MIRROR VOLTAGE SUPPLY CIRCUIT FOR AN OPEN 
    • Select PARK.
    • Ignition OFF.
    • Disconnect: Auto-Dimming Interior Mirror C9039.
    • Ignition ON.
    • Measure the voltage between the auto-dimming interior mirror C9039-1, circuit CBP41 (BU), harness side and ground.
      Fig 1: Measuring Voltage Between Auto-Dimming Interior Mirror C9039-1 And Ground
      G06133529Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to G5.
    • No  : VERIFY the Smart Junction Box (SJB) fuse 41 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM WIRING DIAGRAMS to identify the possible causes of the circuit short. TEST the system for normal operation.
  5. G5 CHECK THE AUTO-DIMMING INTERIOR MIRROR REVERSE INPUT CIRCUIT 
    • Apply the parking brake.
    • Select REVERSE.
    • Measure the voltage between the auto-dimming interior mirror C9039-2, circuit CAT03 (GY/BN), harness side and ground.
      Fig 2: Measuring Voltage Between Auto-Dimming Interior Mirror C9039-2, Circuit CAT03 (GY/BN) And Ground
      G06133530Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to  G7.
    • No  : GO to G6.
  6. G6 CHECK THE AUTO-DIMMING INTERIOR MIRROR REVERSE INPUT CIRCUIT FOR AN OPEN 
    • Disconnect: Body Control Module B (BCM-B) C4368a.
    • Measure the resistance between the BCM-B C4368a-6, circuit CAT03 (GY/BN), harness side and the auto-dimming interior mirror C9039-2, circuit CAT03 (GY/BN), harness side.
      Fig 3: Measuring Resistance Between BCM-B C4368A-6, Circuit CAT03 (GY/BN) And Auto-Dimming Interior Mirror C9039-2, Circuit CAT03 (GY/BN)
      G06392902Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to  G19.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  7. G7 CHECK THE AUTO-DIMMING INTERIOR MIRROR GROUND CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: Negative Battery Cable.
    • Measure the resistance between the auto-dimming interior mirror C9039-3, circuit GD139 (BK/YE), harness side and ground.
      Fig 4: Measuring Resistance Between Auto-Dimming Interior Mirror C9039-3, Circuit GD139 (BK/YE) And Ground
      G06255426Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new auto-dimming interior mirror. REFER to REAR VIEW MIRRORS . TEST the system for normal operation.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  8. G8 VERIFY THE REVERSE SIGNAL INPUT 
    • Apply the parking brake.
    • Ignition ON.
    • Select REVERSE.
    • Check the IPC message center PRNDL indicator.
    • Does REVERSE (R) appear in the message center? 
  9. G9 CHECK THE FDIM DISPLAY 
    • Select REVERSE.
    • Observe the FDIM display.
    • Does the FDIM display "PLEASE CHECK SURROUNDINGS FOR SAFETY" at the top of the display screen? 
    • Yes  : The FDIM display is functional. There is no signal from the video camera. GO to G10.
    • No  : INSTALL a new FDIM. REFER to INFORMATION AND ENTERTAINMENT SYSTEMS . TEST the system for normal operation.
  10. G10 CHECK THE VIDEO SIGNAL CIRCUITS INTEGRITY 
    • Select PARK.
    • Ignition OFF.
    • Disconnect: Auto-Dimming Interior Mirror C9039 (Without Navigation) or FDIM C2123 (With Navigation).
    • For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the auto-dimming interior mirror C9039-16, circuit RMP19 (BN/VT), harness side.
      Fig 5: Checking Video Signal Circuits Integrity
      G06133546Courtesy of FORD MOTOR CO.
    • For vehicles with navigation, measure the resistance between the FDIM C2123-3, circuit VMP19 (WH/GN), harness side and the FDIM C2123-9, circuit RMP19 (BN/VT), harness side.
      Fig 6: Measuring Resistance Between FDIM C2123-3, Circuit VMP19 (WH/GN) And FDIM C2123-9, Circuit RMP19 (BN/VT)
      G06065142Courtesy of FORD MOTOR CO.
    • Is the resistance between 74 and 106 ohms? 
    • Yes  : REMOVE the jumper wire. GO to G11.
    • No  : REMOVE the jumper wire. GO to  G13.
  11. G11 CHECK THE VIDEO CAMERA VOLTAGE SUPPLY CIRCUIT FOR AN OPEN 
    • Disconnect: Video Camera C4357.
    • Ignition ON.
    • Measure the voltage between the video camera C4357-1, circuit CBP29 (WH/VT), harness side and ground.
      Fig 7: Measuring Voltage Between Video Camera C4357-1, Circuit CBP29 (WH/VT) And Ground
      G06065134Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : GO to G12.
    • No  : VERIFY that the SJB fuse 29 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the OEM WIRING DIAGRAMS to identify the possible causes of the circuit short.
  12. G12 CHECK THE VIDEO CAMERA GROUND CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: Negative Battery Cable.
    • Measure the resistance between the video camera C4357-3, circuit GD116 (BK/VT), harness side and ground.
      Fig 8: Measuring Resistance Between Video Camera C4357-3, Circuit GD116 (BK/VT) And Ground
      G06065135Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to  G18.
    • No  : REPAIR the circuit. TEST the system for normal operation.
  13. G13 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO GROUND 
    • Disconnect: Video Camera C4357.
    • Measure the resistance between the video camera C4357-6, circuit VMP19 (WH/GN), harness side and ground; and between the video camera C4357-7, circuit RMP19 (BN/VT), harness side and ground.
      Fig 9: Measuring Resistance Between Video Camera C4357-6, Circuit VMP19 (WH/GN) And Ground
      G06065136Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10, 000 ohms? 
    • Yes  : GO to G14.
    • No  : REPAIR the circuit in question. TEST the system for normal operation.
  14. G14 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VIDEO SHIELD 
    • Measure the resistance between the video camera C4357-6, circuit VMP19 (WH/GN), harness side and the video camera C4357-4, circuit DMP19 (BARE), harness side.
      Fig 10: Measuring Resistance Between Video Camera C4357-6, Circuit VMP19 (WH/GN) And Video Camera C4357-4, Circuit DMP19 (Bare)
      G06065137Courtesy of FORD MOTOR CO.
    • Measure the resistance between the video camera C4357-7, circuit RMP19 (BN/VT), harness side and the video camera C4357-4, circuit DMP19 (BARE), harness side.
      Fig 11: Measuring Resistance Between Video Camera C4357-7, Circuit RMP19 (BN/VT) And Video Camera C4357-4, Circuit DMP19 (Bare)
      G06065147Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10, 000 ohms? 
    • Yes  : GO to G15.
    • No  : REPAIR the circuit in question. TEST the system for normal operation.
  15. G15 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VOLTAGE 
    • Connect: Negative Battery Cable.
    • Ignition ON.
    • Measure the voltage between the video camera C4357-6, circuit VMP19 (WH/GN), harness side and ground.
      Fig 12: Measuring Voltage Between Video Camera C4357-6, Circuit VMP19 (WH/GN) And Ground
      G06065139Courtesy of FORD MOTOR CO.
    • Measure the voltage between the video camera C4357-7, circuit RMP19 (BN/VT), harness side and ground.
      Fig 13: Measuring Voltage Between Video Camera C4357-7, Circuit RMP19 (BN/VT) And Ground
      G06065140Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes  : REPAIR the circuit in question. TEST the system for normal operation.
    • No  : GO to G16.
  16. G16 CHECK VIDEO SIGNAL CIRCUITS FOR AN OPEN 
    • Ignition OFF.
    • Connect a fused jumper wire between the video camera C4357-6, circuit VMP19 (WH/GN), harness side and the video camera C4357-7, circuit RMP19 (BN/VT), harness side.
      Fig 14: Connecting Fused Jumper Wire Between Video Camera C4357-6, Circuit VMP19 (WH/GN) And Video Camera C4357-7
      G06065141Courtesy of FORD MOTOR CO.
    • For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the auto-dimming interior mirror C9039-16, circuit RMP19 (BN/VT), harness side.
      Fig 15: Measuring Resistance Between Auto-Dimming Interior Mirror C9039-8, Circuit VMP19 (WH/GN)
      G06133546Courtesy of FORD MOTOR CO.
    • For vehicles with navigation, measure the resistance between the FDIM C2123-3, circuit VMP19 (WH/GN), harness side and the FDIM C2123-9, circuit RMP19 (BN/VT), harness side.
      Fig 16: Measuring Resistance Between FDIM C2123-3, Circuit VMP19 (WH/GN) And FDIM C2123-9, Circuit RMP19 (BN/VT)
      G06065142Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : REMOVE the jumper wire. GO to  G18.
    • No  : REMOVE the jumper wire. GO to G17.
  17. G17 CHECK VIDEO SIGNAL CIRCUIT (+) FOR AN OPEN 
    • For vehicles without navigation, measure the resistance between the auto-dimming interior mirror C9039-8, circuit VMP19 (WH/GN), harness side and the video camera C4357-6, circuit VMP19 (WH/GN), harness side.
      Fig 17: Measuring Resistance Between Auto-Dimming Interior Mirror C9039-8, Circuit VMP19 (WH/GN)
      G06392915Courtesy of FORD MOTOR CO.
    • For vehicles with navigation, measure the resistance between the FDIM C2123-3, circuit VMP19 (WH/GN), harness side and the video camera C4357-6, circuit VMP19 (WH/GN), harness side.
      Fig 18: Measuring Resistance Between FDIM C2123-3, Circuit VMP19 (WH/GN) And Video Camera C4357-6
      G06065143Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : REPAIR circuit RMP19 (BN/VT). TEST the system for normal operation.
    • No  : REPAIR circuit VMP19 (WH/GN). TEST the system for normal operation.
  18. G18 CHECK FOR CORRECT VIDEO CAMERA OPERATION 
    • Connect all disconnected connectors.
    • Disconnect the video camera connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the video camera connector and make sure it seats correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new video camera. REFER to VIDEO CAMERA . 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.
  19. G19 CHECK FOR CORRECT BCM-B OPERATION 
    • Connect: All Disconnected Connectors.
    • Disconnect all the BCM-B connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the BCM-B connectors and make sure they seat correctly.
    • Operate the system and determine if the concern is still present.
    • Is the concern still present? 
    • Yes  : INSTALL a new BCM-B. REFER to MULTIFUNCTION ELECTRONIC MODULES . 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. CLEAR the DTCs. REPEAT the self-test.
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