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Help with White Night Backup Lights

Discussion in 'Lighting' started by Nick54, Apr 3, 2011.

  1. Apr 3, 2011 at 6:44 PM
    #1
    Nick54

    Nick54 [OP] Well-Known Member

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    ARB Rear Locker & Compressor, Bakflip F1, Antennex 13" flexable antenna, WeatherTech Floor Liners, WeatherTech Side Window Visors, Tacoma Bed Mat, Demello Rock Crushers, Dynamax Ultraflow SS Muffler, TSB 4-Pak Leaf Springs, AFE Pro Dry Filter, Redline Hood Struts, Color Matched Angry Eyelids, Combo Lock Bed Compartments, Bed Mat, Pop-N-Lock, Wet Okoles, Goodyear Duratracs on ProComp 7033's, M101A2 Trailer, Grillcraft Mesh Grill, Light Racing UCA's, King OEM Performance Remote Reservoir Adjustable Front & Rear Shocks, JVC NT3HDT, Blue Sea Aux Fuse Panel, BAMF Behind Grill Light Bracket, Kragen 55W 7" HID's, CBI Front Receiver, Home Link Garage Door Opener, FlyEyez Light Unit, Bud Built Front to Back Skids...
    I purchased the White Night Backup light unit #4196 and the trailer wiring adapter unit # 4149. If I have this correct the center pin of the trailer socket is the backup light pin. With the 4149 adapter connected and its 3 wire plug connected to the White Night light and the truck running and in reverse the light does not come on. Should this pin power up when the truck is in reverse and is there a dedicated fuse or relay I should check?

    http://www.whitenight.com/products.htm
     
  2. Apr 3, 2011 at 7:49 PM
    #2
    caribe makaira

    caribe makaira Lurker No More

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    Hood Struts, My version Fogs always ON, Map & Overhead Light Mod,
    Check lights at battery to see if they work.
    IG1 fuse in cab powers lights among other circuits.
    And yes, center is reverse.
    Check power at harness also.(vehicle 7-pin and 4149 adapter)
     
  3. Apr 4, 2011 at 5:08 AM
    #3
    Nick54

    Nick54 [OP] Well-Known Member

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    ARB Rear Locker & Compressor, Bakflip F1, Antennex 13" flexable antenna, WeatherTech Floor Liners, WeatherTech Side Window Visors, Tacoma Bed Mat, Demello Rock Crushers, Dynamax Ultraflow SS Muffler, TSB 4-Pak Leaf Springs, AFE Pro Dry Filter, Redline Hood Struts, Color Matched Angry Eyelids, Combo Lock Bed Compartments, Bed Mat, Pop-N-Lock, Wet Okoles, Goodyear Duratracs on ProComp 7033's, M101A2 Trailer, Grillcraft Mesh Grill, Light Racing UCA's, King OEM Performance Remote Reservoir Adjustable Front & Rear Shocks, JVC NT3HDT, Blue Sea Aux Fuse Panel, BAMF Behind Grill Light Bracket, Kragen 55W 7" HID's, CBI Front Receiver, Home Link Garage Door Opener, FlyEyez Light Unit, Bud Built Front to Back Skids...
    The light has a 3 position switch located on the back side, in position 1 the lights come on independant of any other conditions. Position 2 lights are always off, position 3 the lights should function when the vehicle is placed in reverse. The lights do in fact come on when the switch is in position 1 so I know the bulbs are good. I wiil be wringing out the center pin of the trailer connector tonight after work.
     
  4. Apr 4, 2011 at 1:34 PM
    #4
    Nick54

    Nick54 [OP] Well-Known Member

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    Well the center pin of the trailer connector located under the bumper is dead. I check the #8 fuse BKUP LP 10A behind dash and #3 Towing Tail 30A - #7 Towing Brk 30A and #9 Towing 30A in the enging compartment, all appeared to be good. Anyone have any idea which fuse or relay activates the center pin?
     
  5. Apr 4, 2011 at 5:53 PM
    #5
    pcool69

    pcool69 Member

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    My 2010 had the same problem. Dealer found it was missing the back up light relay from the factory. Part number 90080-87026.

    I think the relay is located under the dash.
     
  6. Apr 4, 2011 at 9:21 PM
    #6
    caribe makaira

    caribe makaira Lurker No More

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    Hood Struts, My version Fogs always ON, Map & Overhead Light Mod,
    Please show this missing relay location...
    '05~'09 do not have a relay for just the back-up/reverse lights.
    They share juice from IG1 fuse in cab junction box.

    10A IG1=

    ABS (w/ VSC), TRAC, VSC, Auto LSD, Downhill Assist Control and
    Hill–Start Assist Control
    ABS (w/o VSC)
    Accessory Meter
    Air Conditioning
    Back–Up Light
    Charging
    Combination Meter
    Cruise Control (1GR–FE)
    Cruise Control (2TR–FE)
    Electronically Controlled Transmission and A/T Indicator (1GR–FE)
    Electronically Controlled Transmission and A/T Indicator (2TR–FE)
    Engine Control (1GR–FE)
    Engine Control (2TR–FE)
    Headlight
    Multi Mode 4WD and Rear Differential Lock
    Power Outlet (115V)
    Rear Differential Lock (2WD)

     
  7. Apr 4, 2011 at 9:30 PM
    #7
    caribe makaira

    caribe makaira Lurker No More

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    How didya check it?

    Remove the fuse, look for color change, broken, melted. If visually "good" verify with tester or just replace with new if anything fishy/odd.

    [​IMG]

    [​IMG]
    I'm wondering if you just have the 7-pin socket and the wires go to nowhere....:rolleyes:
     
  8. Apr 4, 2011 at 9:36 PM
    #8
    pcool69

    pcool69 Member

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    Unfortunately, I do not know exactly where the relay is located. The dealership took 3 hours to fix the problem (while I waited). By the time they were finished, I was mad and running late for another appointment.
     
  9. Apr 5, 2011 at 7:08 AM
    #9
    Nick54

    Nick54 [OP] Well-Known Member

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  10. Apr 5, 2011 at 7:31 AM
    #10
    Nick54

    Nick54 [OP] Well-Known Member

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    I checked the IG1 fuse with the multi-meter set to ohms and I got continuity so the fuse seems to be ok.
     
  11. Apr 5, 2011 at 7:50 AM
    #11
    Nick54

    Nick54 [OP] Well-Known Member

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    ARB Rear Locker & Compressor, Bakflip F1, Antennex 13" flexable antenna, WeatherTech Floor Liners, WeatherTech Side Window Visors, Tacoma Bed Mat, Demello Rock Crushers, Dynamax Ultraflow SS Muffler, TSB 4-Pak Leaf Springs, AFE Pro Dry Filter, Redline Hood Struts, Color Matched Angry Eyelids, Combo Lock Bed Compartments, Bed Mat, Pop-N-Lock, Wet Okoles, Goodyear Duratracs on ProComp 7033's, M101A2 Trailer, Grillcraft Mesh Grill, Light Racing UCA's, King OEM Performance Remote Reservoir Adjustable Front & Rear Shocks, JVC NT3HDT, Blue Sea Aux Fuse Panel, BAMF Behind Grill Light Bracket, Kragen 55W 7" HID's, CBI Front Receiver, Home Link Garage Door Opener, FlyEyez Light Unit, Bud Built Front to Back Skids...
    It seems that all the protection/relays are in place and functioning correctly. The schematic Caribe posted is very helpful but can someone give some insight to the area I marked in red, this seems to be where the input to the center pin comes from.
    [​IMG]
     
  12. Apr 5, 2011 at 12:44 PM
    #12
    caribe makaira

    caribe makaira Lurker No More

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  13. Sep 15, 2011 at 4:21 PM
    #13
    Nick54

    Nick54 [OP] Well-Known Member

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    ARB Rear Locker & Compressor, Bakflip F1, Antennex 13" flexable antenna, WeatherTech Floor Liners, WeatherTech Side Window Visors, Tacoma Bed Mat, Demello Rock Crushers, Dynamax Ultraflow SS Muffler, TSB 4-Pak Leaf Springs, AFE Pro Dry Filter, Redline Hood Struts, Color Matched Angry Eyelids, Combo Lock Bed Compartments, Bed Mat, Pop-N-Lock, Wet Okoles, Goodyear Duratracs on ProComp 7033's, M101A2 Trailer, Grillcraft Mesh Grill, Light Racing UCA's, King OEM Performance Remote Reservoir Adjustable Front & Rear Shocks, JVC NT3HDT, Blue Sea Aux Fuse Panel, BAMF Behind Grill Light Bracket, Kragen 55W 7" HID's, CBI Front Receiver, Home Link Garage Door Opener, FlyEyez Light Unit, Bud Built Front to Back Skids...
    The last post in this thread was April and I finally got around to getting this worked out. Come to find out after I eliminated every fuse and relay I could get my hands on, and wringing out wire runs that pcool69 had the answer. Brought it to the dealer and they found a relay missing behind the glove box. They installed it and vuala, reverse light power at center pin of tow socket.
     
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