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Automatic Lights Not Working

Discussion in '3rd Gen. Tacomas (2016-2023)' started by facefirst, Nov 20, 2019.

  1. Nov 21, 2019 at 6:27 PM
    #61
    caribe makaira

    caribe makaira Well-Known Member

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  2. Nov 21, 2019 at 6:33 PM
    #62
    facefirst

    facefirst [OP] Well-Known Member

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    Auto headlights don't work. This was the first thing I did when troubleshooting.
     
  3. Nov 21, 2019 at 6:34 PM
    #63
    facefirst

    facefirst [OP] Well-Known Member

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    Thanks, but not quite sure what this is. I'm just trying to find a corresponding fuse to see if that's the issue.
     
  4. Nov 21, 2019 at 6:36 PM
    #64
    caribe makaira

    caribe makaira Well-Known Member

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    There is a label on the drawing stating it's the Automatic Light Control Sensor...
     
    auskip07 and GreyBaldTaco like this.
  5. Nov 21, 2019 at 6:40 PM
    #65
    caribe makaira

    caribe makaira Well-Known Member

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    The other "picture" states to verify voltage between the PINK and the RED. (19 & 21) on connector M6 on the Main Body ECU.
    My suggestion is schedule a Stealership appoinment...

    P.S. There's no fuse to change and fix for this feature.
     
    vicali likes this.
  6. Nov 21, 2019 at 6:45 PM
    #66
    RangerComa

    RangerComa 58008

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    Did you check to see if the tail lights come on when you are in auto mode and cover the sensor? If no tail lights then most likely sensor problem. If tail lights on and no headlights then wire harness issue on the leg going headlights.
     
  7. Nov 21, 2019 at 6:53 PM
    #67
    caribe makaira

    caribe makaira Well-Known Member

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    Your guesstimate is flawed by just a little. The sensor senses. The Main Body ECU does the rest.
     
  8. Nov 21, 2019 at 6:54 PM
    #68
    caribe makaira

    caribe makaira Well-Known Member

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  9. Nov 21, 2019 at 7:01 PM
    #69
    RangerComa

    RangerComa 58008

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    Well shhheiit :fingerscrossed:
     
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  10. Nov 21, 2019 at 7:03 PM
    #70
    facefirst

    facefirst [OP] Well-Known Member

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    Yeah, no tail lights. I ordered a diagnostic scanner from Amazon that will come tomorrow. I’ll see if it’s throwing any codes. Sounds like I’ll be ponying up for a new sensor, though.
     
  11. Nov 21, 2019 at 7:58 PM
    #71
    jimmerheck

    jimmerheck Well-Known Member

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    Have you done any work lately on the passenger side of the truck where the sensor or its wiring is located, bump loose a connector maybe? Hard to believe as when I have to disconnect any connector on this truck its not easy for them to just become "unplugged by bumping"...but just trying to help.
     
  12. Nov 21, 2019 at 8:17 PM
    #72
    facefirst

    facefirst [OP] Well-Known Member

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    I installed new tweeters a few months ago but it was working fine after that. Even checked the sensor today just to make sure and it’s fine.
     
  13. Nov 22, 2019 at 6:45 AM
    #73
    facefirst

    facefirst [OP] Well-Known Member

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    So I went to the gym this morning and noticed something that might or might not be happening in conjunction. My BSM and RCT systems aren't working. The BSM button doesn't even light up and there's nothing even when driving next to a car. I sat in the gym parking lot in reverse while a couple cars drove past and the RCT never made a sound.

    So there is absolutely no fuses involved in these systems at all?
     
  14. Nov 22, 2019 at 6:48 AM
    #74
    Speedfreak

    Speedfreak Member in poor standing

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    Different systems with different fuses.
     
  15. Nov 22, 2019 at 6:55 AM
    #75
    RangerComa

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    you said you detailed the truck before these things stopped working. What exactly did you do? Any pressure washing?
     
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  16. Nov 22, 2019 at 7:08 AM
    #76
    caribe makaira

    caribe makaira Well-Known Member

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  17. Nov 22, 2019 at 7:09 AM
    #77
    daddy_o

    daddy_o Well-Known Member

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    Possible rodents? Have you checked your cabin filter to see if there is a nest?
     
  18. Nov 22, 2019 at 7:10 AM
    #78
    facefirst

    facefirst [OP] Well-Known Member

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    Any idea where the fuses are?
    Just detailed the inside. Was too cold for the outside so I just went to the touch-free car wash.
    Should I have not done it like that?
     
    RangerComa[QUOTED] likes this.
  19. Nov 22, 2019 at 7:16 AM
    #79
    facefirst

    facefirst [OP] Well-Known Member

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    Nope. All clear.
     
  20. Nov 22, 2019 at 7:17 AM
    #80
    daddy_o

    daddy_o Well-Known Member

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    download.jpg
     

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