PINPOINT TEST J: THE REAR VIDEO IS INOPERATIVE - VEHICLES WITH A 4.2 in (106.68 mm) DISPLAY

WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. 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 results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .

J1 CHECK THE DTCs FROM THE BCM AND FCDIM SELF-TEST
- Ignition ON.
- Using a scan tool, perform the BCM and FCDIM self-tests.
Are any BCM or FCDIM DTCs retrieved?
- Yes : For BCM DTC B115E:08, GO to J14.
  For FCDIM DTC C1001:01, GO to J5.
  
  For all other DTCs, REFER to DTC CHARTS .
- No : GO to J2.
J2 CHECK AND CLEAN THE REAR VIDEO CAMERA LENS
- Clean and make sure the rear video camera lens is clear of any debris.
- Test the video camera system and verify the video camera image.
Is the video camera concern still present?
- Yes : GO to J3.
- No : The system is operating correctly at this time. The concern was caused by a dirty video camera lens.
J3 CHECK THE REVERSING LAMPS OPERATION
- Check the operation of the reversing lamps.
Do the reversing lamps operate correctly?
- Yes : GO to J4.
- No : REFER to EXTERIOR LIGHTING .
J4 CHECK THE FCDIM DISPLAY
- Observe the FCDIM while placing the vehicle in reverse.
While selecting reverse and waiting up to 30 seconds, does the FCDIM screen switch to video camera mode and display "Please Contact Your Dealership"?
- Yes : The display is functional. There is no signal from the video camera. GO to J5.
- No : RETRIEVE and FOLLOW FCDIM DTCs. REFER to INFORMATION AND ENTERTAINMENT SYSTEMS .
J5 CHECK THE VIDEO SIGNAL CIRCUITS INTEGRITY
- Ignition OFF.
- Disconnect: FCDIM C2123 .
- Measure the resistance between the FCDIM C2123-6 , circuit VMP19 (WH/GN), harness side and the FCDIM C2123-12 , circuit RMP19 (BN/VT), harness side.
  
  Fig 1: Measuring Resistance Between FCDIM C2123-6 And 12, Circuit VMP19 (WH/GN) And Circuit RMP19 (BN/VT)
  Courtesy of FORD MOTOR CO.
Is the resistance between 74 and 106 ohms?
- Yes : GO to J6.
- No : GO to J10.
J6 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 CBP34 (VT/BN), harness side and ground.
  
  Fig 2: Measuring Voltage Between Video Camera C4357-1, Circuit CBP34 (VT/BN) And Ground
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 10 volts?
- Yes : GO to J7.
- No : VERIFY the BCM fuse 34 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short. TEST the system for normal operation.
J7 CHECK THE VIDEO CAMERA GROUND CIRCUIT FOR AN OPEN
- Measure the voltage between the video camera C4357-1 , circuit CBP34 (VT/BN), harness side and the video camera C4357-5 , circuit GD143 (BK/VT), harness side and ground.
  
  Fig 3: Measuring Voltage Between Video Camera C4357-1 And 5, Circuit CBP34 (VT/BN), Circuit GD143 (BK/VT) And Ground
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 10 volts?
- Yes : GO to J8.
- No : REPAIR circuit GD143 for an open. TEST the system for normal operation.
J8 CHECK THE VIDEO CAMERA SIGNAL CIRCUITS FOR A SHORT TO GROUND
- Disconnect: Video Camera C4357 .
- Measure the resistance between the video camera C4357-4 , circuit VMP19 (WH/GN), harness side and ground; and between the video camera C4357-3 , circuit RMP19 (BN/VT), harness side and ground.
  
  Fig 4: Measuring Resistance Between Video Camera C4357-4, Circuit VMP19 (WH/GN) And Ground
  Courtesy of FORD MOTOR CO.
Are the resistances greater than 10, 000 ohms?
- Yes : GO to J9.
- No : REPAIR the circuit in question. TEST the system for normal operation.
J9 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VIDEO SHIELD
- Measure the resistance between the video camera C4357-4 , circuit VMP19 (WH/GN), harness side and the video camera C4357-6 , circuit DMN19 (shield), harness side.
  
  Fig 5: Measuring Resistance Between Video Camera C4357-4 And 6, Circuit VMP19 (WH/GN) And Circuit DMN19 (Shield)
  Courtesy of FORD MOTOR CO.
  - Measure the resistance between the video camera C4357-3 , circuit RMP19 (BN/VT), harness side and the video camera C4357-6 , circuit DMN19 (shield), harness side.
    
    Fig 6: Measuring Resistance Between Video Camera C4357-3 And 6, Circuit RMP19 (BN/VT) And Circuit DMN19 (Shield)
    Courtesy of FORD MOTOR CO.
  Are the resistances greater than 10, 000 ohms?
  - Yes : GO to J10.
  - No : REPAIR the circuit in question. TEST the system for normal operation.
- J10 CHECK THE VIDEO CAMERA VIDEO SIGNAL CIRCUITS FOR A SHORT TO VOLTAGE
  - Disconnect: Video Camera C4357 , if not previously disconnected..
  - Ignition ON.
  - Measure the voltage between the video camera C4357-4 , circuit VMP19 (WH/GN), harness side and ground; and between the video camera C4357-3 , circuit RMP19 (BN/VT), harness side and ground.
    
    Fig 7: Measuring Voltage Between Video Camera C4357-4, Circuit VMP19 (WH/GN) And Ground
    Courtesy of FORD MOTOR CO.
  Is any voltage present?
  - Yes : REPAIR the circuit in question. TEST the system for normal operation.
  - No : GO to J11.
- J11 CHECK VIDEO SIGNAL CIRCUITS FOR A SHORT TOGETHER
  - Ignition OFF.
  - Measure the resistance between the FCDIM C2123-6 , circuit VMP19 (WH/GN), harness side and the FCDIM C2123-12 , circuit RMP19 (BN/VT), harness side.
    
    Fig 8: Measuring Resistance Between FCDIM C2123-6 And 12, Circuit VMP19 (WH/GN) And Circuit RMP19 (BN/VT)
    Courtesy of FORD MOTOR CO.
  Is the resistance greater than 10, 000 ohms?
  - Yes : GO to J12.
  - No : REPAIR the circuits.
- J12 CHECK VIDEO SIGNAL CIRCUITS FOR AN OPEN
  - Connect a fused jumper wire between the video camera C4357-4 , circuit VMP19 (WH/GN), harness side and the video camera C4357-3 , circuit RMP19 (BN/VT), harness side.
    
    Fig 9: Connecting Fused Jumper Wire Between Video Camera C4357-3 And 4, Circuit VMP19 (WH/GN) And Circuit RMP19 (BN/VT)
    Courtesy of FORD MOTOR CO.
  - Measure the resistance between the FCDIM C2123-6 , circuit VMP19 (WH/GN), harness side and the FCDIM C2123-12 , circuit RMP19 (BN/VT), harness side.
    
    Fig 10: Measuring Resistance Between FCDIM C2123-6 And 12, Circuit VMP19 (WH/GN) And Circuit RMP19 (BN/VT)
    Courtesy of FORD MOTOR CO.
  Is the resistance less than 5 ohms?
  - Yes : REMOVE the jumper wire. GO to J16.
  - No : REMOVE the jumper wire. GO to J13.
- J13 CHECK VIDEO (+) SIGNAL CIRCUIT FOR AN OPEN
  - Measure the resistance between the video camera C4357-4 , circuit VMP19 (WH/GN), harness side and FCDIM C2123-6 , circuit VMP19 (WH/GN), harness side.
  Fig 11: Measuring Resistance Between Video Camera C4357-4, Circuit VMP19 (WH/GN) And FCDIM C2123-6
  Courtesy 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.
J14 CHECK THE LIN CIRCUIT FOR A SHORT TO VOLTAGE
- Ignition OFF.
- Disconnect: Video Camera C4357 .
- Disconnect: BCM C2280C .
- Ignition ON.
- Measure the voltage between the video camera C4357-2 , circuit VDN03 (GY/VT), harness side and ground.
  
  Fig 12: Measuring Voltage Between Video Camera C4357-2, Circuit VDN03 (GY/VT) And Ground
  Courtesy of FORD MOTOR CO.
Is any voltage present?
- Yes : REPAIR the circuit. TEST the system for normal operation.
- No : GO to J15.
J15 CHECK THE LIN CIRCUIT FOR AN OPEN OR SHORT TO GROUND
- Ignition OFF.
- Measure the resistance between the video camera C4357-2 , circuit VDN03 (GY/VT), harness side and the BCM C2280C-12 , circuit VDN03 (GY/VT), harness side; and between the video camera C4357-2 , circuit VDN03 (GY/VT), harness side and ground.
  
  Fig 13: Measuring Resistance Between Video Camera C4357-2, BCM C2280C-12 And Circuit VDN03 (GY/VT)
  Courtesy of FORD MOTOR CO.
Is resistance less than 5 ohms between the video camera and BCM , and greater than 10, 000 ohms between the video camera and ground?
- Yes : GO to J16.
- No : REPAIR the circuit. TEST the system for normal operation.
J16 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.