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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 717 (Interior Lighting) >> Diagnosis And Testing >> Interior Lighting >> Pinpoint Tests >> Pinpoint Test J: The Cargo Lamps, Bed Lamps, Scuff Plate Lamps Or Trailer Assist Lamp Is Inoperative Or Always On

Pinpoint Test J: The Cargo Lamps, Bed Lamps, Scuff Plate Lamps Or Trailer Assist Lamp Is Inoperative Or Always On

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. Refer to INTERIOR LAMPS for schematic and connector information.

    Normal Operation and Fault Conditions 

    REFER to: Interior Lighting - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    BCM B12C2:11 Puddle Lamp: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the cargo and trailer assist lamps output circuit.
    BCM B12C2:15 Puddle Lamp: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the cargo and trailer assist lamps output circuit.
    BCM B14A7:11 Puddle/Cargo Switch Input: Circuit Short To Ground A continuous and on-demand DTC that sets when the BCM detects a short to ground on the cargo lamp switch (integrated into the headlamp switch) input circuit.
    BCM B14D8:11 Bed Lamp Output: Circuit Short To Ground A continuous memory and on-demand DTC that sets when the BCM detects a short to ground from the bed lamps output circuit.
    BCM B14D8:15 Bed Lamp Output: Circuit Short To Battery Or Open A continuous memory and on-demand DTC that sets when the BCM detects an open or short to voltage from the bed lamps output circuit.

    Possible Sources 

    • Wiring, terminals or connectors
    • Bed lamp
    • Cargo lamp (integrated into the high mounted stoplamp)
    • Cargo lamp bulb (if not equipped with LED cargo lamps)
    • Trailer assist lamp
    • Scuff plate lamp
    • Cargo lamp switch (integrated into the headlamp switch)
    • Truck bed lamp switch
    • BCM

  2. J1 CHECK THE OPERATION OF THE TRAILER ASSIST, SCUFF PLATE AND CARGO LAMPS

    • Close all the doors and observe the cargo, scuff plate and trailer assist lamps.

    • Observe the trailer assist (if equipped), scuff plate (if equipped) and cargo lamp operation for 30 seconds.

    Do all the trailer assist (if equipped), scuff plate (if equipped) and cargo lamps stay on after 30 seconds? 

    Yes  GO to  J6
    No  If only the trailer assist lamp (if equipped), scuff plate lamps (if equipped) and cargo lamps are inoperative, GO to  J10 If only the trailer assist lamp is inoperative, GO to  J15 If only the scuff plate lamp(s) are inoperative, GO to  J17 For vehicles equipped with trailer assist lamps, if all trailer assist, scuff plate and cargo lamps are inoperative, GO to  J26

  3. J2 CHECK THE OPERATION OF THE CARGO/BED LAMP SWITCH(ES)

    • While operating the switch(es), observe the bed (if equipped), trailer assist (if equipped), scuff plate (if equipped) and cargo lamp operation.

    Do all the bed (if equipped), trailer assist (if equipped), scuff plate (if equipped) and cargo lamps operate correctly from the switch(es)? 

    Yes  The system is operating correctly at this time. The concern may have been caused by connections. ADDRESS the root cause of any connector or pin issues. CLEAR the Diagnostic Trouble Codes (DTCs).
    No  If only the bed lamp(s) are inoperative, GO to  J19 If only the bed lamps are always on, GO to  J25 If all lamps are inoperative from the cargo lamp or truck bed lamp switch(es), GO to  J3

  4. J3 CHECK THE OPERATION OF THE CARGO/BED LAMP SWITCH(ES)

    • Disconnect BCM C2280E.

    • While switching the switch(es) ON and OFF, measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-8
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms with the switch(es) OFF and less than 3 ohms with the switch(es) ON? 

    Yes  GO to  J26
    No  GO to  J4

  5. J4 CHECK THE CARGO/BED LAMP SWITCH(ES)

    • Disconnect Suspect Switch.

    • Connect a fused jumper wire:

      Headlamp switch 

      Positive Lead Measurement / Action Negative Lead
      C205-12
      GFD560779Courtesy of FORD MOTOR COMPANY
      		 C205-1

      Truck bed lamp switch 

      Positive Lead Measurement / Action Negative Lead
      C4496-1
      GFD560779Courtesy of FORD MOTOR COMPANY
      		 C4496-2

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-8
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  INSTALL a new headlamp switch or bed lamp switch.
    No  GO to  J5

  6. J5 CHECK THE CARGO/BED LAMP SWITCH GROUND CIRCUIT

    • Connect a fused jumper wire:

      Headlamp switch 

      Positive Lead Measurement / Action Negative Lead
      C205-12
      GFD560779Courtesy of FORD MOTOR COMPANY
      		 Ground

      Truck bed lamp switch 

      Positive Lead Measurement / Action Negative Lead
      C4496-1
      GFD560779Courtesy of FORD MOTOR COMPANY
      		 Ground

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-8
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance less than 3 ohms? 

    Yes  REPAIR the ground circuit for an open.
    No  REPAIR the cargo/bed lamp switches input circuit for an open.

  7. J6 CHECK THE CARGO/BED LAMP SWITCHES INPUT CIRCUIT FOR GROUND

    • Ignition OFF.

    • Disconnect BCM C2280E.

    • Make sure the cargo lamp switch (integrated into the headlamp switch) is OFF.

    • Make sure the truck bed lamp switch is OFF (if equipped).

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-8
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  For vehicles not equipped with bed lamps, GO to  J9 For vehicles equipped with bed lamps, GO to  J26
    No  GO to  J7

  8. J7 ISOLATE THE CARGO LAMP SWITCH

    • Disconnect Headlamp switch C205.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-8
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  INSTALL a new headlamp switch. REFER to: HEADLAMP SWITCH .
    No  If not equipped with bed lamps, REPAIR the cargo lamp switch input circuit for a short to ground. If equipped with bed lamps, GO to  J8

  9. J8 ISOLATE THE TRUCK BED LAMP SWITCH

    • Disconnect Truck bed lamp switch C4496.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280E-8
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  INSTALL a new truck bed lamp switch.
    No  REPAIR the cargo/bed lamp switches input circuit for a short to ground.

  10. J9 CHECK THE BCM (BODY CONTROL MODULE) CARGO/TRAILER ASSIST LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE

    • Ignition OFF.

    • Disconnect BCM C2280C.

    • Ignition ON.

    Are the lamps still illuminated? 

    Yes  REPAIR the circuit.
    No  GO to  J26

  11. J10 CHECK FOR VOLTAGE TO THE CARGO LAMPS

    • Disconnect For vehicles with halogen high mounted stoplamp, high mounted stoplamp C904.

    • Disconnect For vehicles with LED high mounted stoplamp, high mounted stoplamp C9030.

    • Disconnect For vehicles with LED high mounted stoplamp and 360 camera, high mounted stoplamp C9125.

    • Ignition ON.

    • Open a door.

    • Measure:

      Halogen high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C904-2
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

      LED high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C9030-2
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

      LED high mounted stoplamp with 360 camera 

      Positive Lead Measurement / Action Negative Lead
      C9125-7
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  J14
    No  GO to  J11

  12. J11 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE CARGO LAMPS

    • Using a diagnostic scan tool, perform the BCM self-test.

    • Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present).

    • Measure:

      Halogen high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C904-2
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

      LED high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C9030-2
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

      LED high mounted stoplamp with 360 camera 

      Positive Lead Measurement / Action Negative Lead
      C9125-7
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  INSTALL a new high mounted stoplamp. REFER to: HIGH MOUNTED STOPLAMP .
    No  GO to  J12

  13. J12 CHECK THE BCM (BODY CONTROL MODULE) CARGO/SCUFF PLATE/TRAILER ASSIST LAMPS OUTPUT CIRCUIT FOR A SHORT TO GROUND

    • Disconnect BCM C2280C.

    • Measure:

      Halogen high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C904-2
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

      LED high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C9030-2
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

      LED high mounted stoplamp with 360 camera 

      Positive Lead Measurement / Action Negative Lead
      C9125-7
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  J13
    No  REPAIR the circuit. After the repair: If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation. If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present). If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed. REFER to: Body Control Module (BCM) .

  14. J13 CHECK THE BCM (BODY CONTROL MODULE) CARGO/SCUFF PLATE/TRAILER ASSIST LAMPS OUTPUT CIRCUIT FOR AN OPEN

    • Measure:

      Halogen high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C904-2
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 C2280C-26

      LED high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C9030-2
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 C2280C-26

      LED high mounted stoplamp with 360 camera 

      Positive Lead Measurement / Action Negative Lead
      C9125-7
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 C2280C-26

    Is the resistance less than 3 ohms? 

    Yes  GO to  J26
    No  REPAIR the circuit.

  15. J14 CHECK THE CARGO LAMP GROUND CIRCUIT

    • Measure:

      Halogen high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C904-2
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C904-1

      LED high mounted stoplamp 

      Positive Lead Measurement / Action Negative Lead
      C9030-2
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C9030-1

      LED high mounted stoplamp with 360 camera 

      Positive Lead Measurement / Action Negative Lead
      C9125-7
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C9125-6

    Is the voltage greater than 11 volts? 

    Yes  INSTALL a new high mounted stoplamp. REFER to: HIGH MOUNTED STOPLAMP .
    No  REPAIR the circuit.

  16. J15 CHECK THE TRAILER ASSIST LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

    • Close the door.

    • Disconnect Trailer assist lamp C4500.

    • Ignition ON.

    • Open a door.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4500-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  J16
    No  REPAIR the circuit.

  17. J16 CHECK THE TRAILER ASSIST LAMP GROUND CIRCUIT FOR AN OPEN

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C4500-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C4500-2

    Is the voltage greater than 11 volts? 

    Yes  INSTALL a new trailer assist lamp.
    No  REPAIR the circuit.

  18. J17 CHECK THE SCUFF PLATE LAMP VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

    • Disconnect LH scuff plate lamp C3251 or RH scuff plate lamp C3250.

    • Measure:

      LH scuff plate lamp 

      Positive Lead Measurement / Action Negative Lead
      C3251-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

      RH scuff plate lamp 

      Positive Lead Measurement / Action Negative Lead
      C3250-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  GO to  J18
    No  REPAIR the circuit.

  19. J18 CHECK THE SCUFF PLATE LAMP GROUND CIRCUIT FOR AN OPEN

    • Measure:

      LH scuff plate lamp 

      Positive Lead Measurement / Action Negative Lead
      C3251-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C3251-2

      RH scuff plate lamp 

      Positive Lead Measurement / Action Negative Lead
      C3250-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C3250-2

    Is the voltage greater than 11 volts? 

    Yes  INSTALL a new scuff plate lamp.
    No  REPAIR the circuit.

  20. J19 CHECK FOR VOLTAGE TO THE BED LAMPS

    • Disconnect If one bed lamp is inoperative, LH truck bed lamp C4494 or RH truck bed lamp C4495.

    • Disconnect If both bed lamps are inoperative, LH truck bed lamp C4494 and RH truck bed lamp C4495.

    • Ignition ON.

    • Open a door.

    • If one bed lamp is inoperative, measure:

      LH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4494-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

      RH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4495-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    • If both bed lamps are inoperative, measure:

      LH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4494-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  If both bed lamps are inoperative, REPAIR the truck bed lamps ground circuit. If a single bed lamp is inoperative, GO to  J24
    No  If both bed lamps are inoperative, GO to  J20 If a single bed lamp is inoperative, GO to  J23

  21. J20 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE LH (LEFT-HAND) BED LAMP

    • Ignition OFF.

    • Connect RH truck bed lamp C4495.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the BCM self-test.

    • Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present).

    • Measure:

      LH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4494-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  INSTALL a new LH truck bed lamp.
    No  GO to  J21

  22. J21 REPEAT THE ON-DEMAND SELF-TEST AND CHECK FOR VOLTAGE TO THE RH (RIGHT-HAND) BED LAMP

    • Ignition OFF.

    • Disconnect RH truck bed lamp C4495.

    • Ignition ON.

    • Using a diagnostic scan tool, perform the BCM self-test.

    • Clear the Diagnostic Trouble Codes (DTCs) and repeat the self-test (required to enable the lamp output driver if DTC U1000:00 is present).

    • Measure:

      RH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4495-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the voltage greater than 11 volts? 

    Yes  INSTALL a new RH truck bed lamp.
    No  GO to  J22

  23. J22 CHECK THE BCM (BODY CONTROL MODULE) BED LAMPS OUTPUT CIRCUIT FOR A SHORT TO GROUND

    • Ignition OFF.

    • Disconnect BCM C2280B.

    • Measure:

      LH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4494-1
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  J23
    No  REPAIR the circuit. After the repair: If no Diagnostic Trouble Codes (DTCs) are present, TEST the system for normal operation. If DTC U1000:00 is present, CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the lamp output driver if DTC U1000:00 is present). If DTC U3000:49 is present, INSTALL a new BCM after all other Diagnostic Trouble Codes (DTCs) have been addressed. REFER to: Body Control Module (BCM) .

  24. J23 CHECK THE BCM (BODY CONTROL MODULE) BED LAMPS OUTPUT CIRCUIT FOR AN OPEN

    • If one bed lamp is inoperative, measure:

      LH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4494-1
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 C2280B-44

      RH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4495-1
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 C2280B-44

    • If both bed lamps are inoperative, measure:

      LH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4494-1
      GFD560648Courtesy of FORD MOTOR COMPANY
      		 C2280B-44

    Is the resistance less than 3 ohms? 

    Yes  GO to  J26
    No  REPAIR the circuit.

  25. J24 CHECK THE BED LAMP GROUND CIRCUIT

    • If one bed lamp is inoperative, measure:

      LH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4494-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C4494-2

      RH truck bed lamp 

      Positive Lead Measurement / Action Negative Lead
      C4495-1
      GFD560645Courtesy of FORD MOTOR COMPANY
      		 C4495-2

    Is the voltage greater than 11 volts? 

    Yes  INSTALL a new truck bed lamp.
    No  REPAIR the circuit.

  26. J25 CHECK THE BCM (BODY CONTROL MODULE) BED LAMPS OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE

    • Ignition ON.

    • Disconnect BCM C2280B.

    Are the bed lamps still illuminated? 

    Yes  REPAIR the circuit.
    No  GO to  J26

  27. J26 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Disconnect and inspect all BCM connectors and related in-line connectors.

    • Repair:

      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary

    • Reconnect the BCM connectors and related in-line connectors. Make sure they seat and latch correctly.

    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM. REFER to: Body Control Module (BCM) .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. CLEAR the Diagnostic Trouble Codes (DTCs).
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