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Map lights and Dome lights won’t go off

Discussion in 'MESO Customs' started by Tony77, Jun 20, 2021.

  1. Jun 20, 2021 at 7:22 AM
    #1
    Tony77

    Tony77 [OP] Well-Known Member

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    So I’ve been using the Meso map lights with no problem for awhile.
    Just received the v2 dome light and had the fuse go on the install. Thinking I must have shorted that bulb on something in there damn small area and a pita to get in. Ok so replaced the fuse and now the only way to get the map lights and dome light to go out is to turn them off on the rocker switch. Going to the dealer for regular service soon. I read that old thread about this problem and it seems I either screwed up the ecu or the board in the overhead unit . Is there anything I’m missing or is this the consensus.
     
    Abominator likes this.
  2. Jun 20, 2021 at 4:31 PM
    #2
    Abominator

    Abominator Well-Known Member

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    These trucks are weird with lights. I installed some LED bulbs in the Map & vanity lights today. I went to change the Dome light and noticed it was not working, thought perhaps a bad bulb. I put in the new LED, didn't work....flipped the bulb...didn't work. I pressed upwards and the bulb on the non clip side and the bulb BARELY lit up. I did that a couple times and now nothing. Not in "door" mode or "on" mode. My Map and vanity light still work. This is frustrating.
     
  3. Jun 20, 2021 at 5:46 PM
    #3
    Tony77

    Tony77 [OP] Well-Known Member

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    I thought how hard can this be take out the bulb and install the meso unit. My mistake knew it went south when the fuse blew and the lights went out.Still hoped that a fuse change would solve my problems, but now map and dome lights just stay on unless I move the rocker switch to off. Going to find out the damage when I bring it in for service. Live and learn.
     
  4. Jun 20, 2021 at 6:18 PM
    #4
    MESO

    MESO Major Modder Vendor

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    This situation has happened before(not exclusive to MESO lights) but any LEDS in general. Toyota has a bad design in the circuitry of the overhead panel. Any short(either during installation, LED burning out, etc) could result in a broken trace in the console circuit board. It’s a pretty simple fix if you can solder. I’ll post some pics of what has to be repaired. Again- NOT from MESO products, this can happen with anything(even a stock bulb) if you accidentally short it when trying to install.
     
    jmneill, Abominator and davidstacoma like this.
  5. Jun 20, 2021 at 6:24 PM
    #5
    Tony77

    Tony77 [OP] Well-Known Member

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    Any help would be appreciated.Not placing blame on your product this is all on me should have proceeded with more caution.
     
  6. Jun 20, 2021 at 6:29 PM
    #6
    davidstacoma

    davidstacoma Friendly Curmudgeon

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    This. 12V is present on the dome light socket even with the switch off. Exactly why I tell folks to always pull the dome light fuse or disconnect the negative lead of the battery before installing ANY dome bulb, LED or not. This has happened so many times and it needn't happen.
     
  7. Jun 22, 2021 at 9:17 AM
    #7
    MESO

    MESO Major Modder Vendor

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    Here are a few pics of what "typically" happens when the overhead console gets short circuited and burns a trace. If you have the maps staying on, this may be the culprit. I am just sharing what I have encountered throughout the years and how I was able to fix it without having to purchase a new overhead console. MODIFY AT YOUR OWN RISK.
    First, the overhead console has to be disassembled. It's held together with plastic welds which can be cut off with a razor or snips. Here is a pic from another member showing the locations(red boxes)
    [​IMG]


    This is the main circuit board we are after.
    [​IMG]

    The lower RIGHT is usually where the problem occurs. You can see the copper trace is separated.
    [​IMG]

    I scuff the copper pads then cut a new wire(trace)
    [​IMG]


    Soldered and fixed
    [​IMG]


    Now, next time you work on anything electrical... disconnect the battery :D
     
    Last edited: Jun 22, 2021
    akmrk, MK_Taco, Kolter45 and 5 others like this.
  8. Jun 22, 2021 at 10:54 AM
    #8
    Tony77

    Tony77 [OP] Well-Known Member

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    Thank you
     
  9. Jun 25, 2021 at 3:11 PM
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    Abominator

    Abominator Well-Known Member

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    My dome light mysteriously works now........I am confused. Wonder how long it will continue to work.
     
  10. Jun 25, 2021 at 3:32 PM
    #10
    Tony77

    Tony77 [OP] Well-Known Member

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    Glad that it’s working.Still debating my next move.
     
  11. Jul 2, 2021 at 7:37 AM
    #11
    Tony77

    Tony77 [OP] Well-Known Member

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    So I went the route of a new overhead console. Installed it this morning making sure to disconnect the negative terminal on the battery. While it was out swapped my meso map lights from the original console into the new one. Happy to report all is operating as it should. A expensive lesson learned.
     
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  12. Jul 2, 2021 at 10:51 AM
    #12
    Tacospike

    Tacospike Semi-Unknown Custodial Member

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    Glad it worked out for you though.
     
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  13. Dec 28, 2021 at 4:26 PM
    #13
    GrizzledBastard

    GrizzledBastard OH NO! I've built a Faux Pro!

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    @Tony77 My truck is in for identical issue. They can't figure it out and want to contact Toyota Engineers having my rig for a full day again. What did the console component you bought cost? Do you recall part numbers/description? Thanks!
     
  14. Dec 28, 2021 at 5:50 PM
    #14
    Tony77

    Tony77 [OP] Well-Known Member

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    EE7EE4F8-DF4D-41D9-BDB3-F3A3B9BDEF88.jpgThis is the part number that was for my truck.
    Was around $350. Purchased from rhymes with sharks. For some reason you can’t post the name of the place.
    Good luck.
     
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  15. Dec 28, 2021 at 5:52 PM
    #15
    Tony77

    Tony77 [OP] Well-Known Member

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    E25BCED5-79C5-4D96-9622-3BB6786DF128.jpg This is a photo of the overhead console that I damaged.
     
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  16. Dec 29, 2021 at 1:18 AM
    #16
    MilkDud

    MilkDud Well-Known Member

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    Question:
    So I replaced the stock bulbs with LED ones I bought on Amazon. Quality seems fine. They've been working flawlessly for over a year. If one of them fails, am I more prone to having this sort of ECB failure? Does running aftermarket LEDs pose a greater risk for issues, or is it the same whether I use stock or not. Thanks
     
  17. Dec 29, 2021 at 3:28 AM
    #17
    Tony77

    Tony77 [OP] Well-Known Member

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    My issue was that I shorted out the holder while I was trying to install the meso dome light. My bad, since replacing the overhead console all has been good since July.
     
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  18. Dec 29, 2021 at 4:18 AM
    #18
    RedWings44

    RedWings44 Well-Known Member

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    I didn't have any issue. My Amazon bulbs had issues so I replaced them with Sylvania bulbs. The best thing to do is make sure you don't have the power on to the bulb when you're installing it. You can easily pull the entire assembly down as it is held in with plastic clips. It is much easier to remove the bulbs to replace them after that.
     
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  19. Dec 29, 2021 at 8:39 AM
    #19
    Tony77

    Tony77 [OP] Well-Known Member

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    And that was my mistake. Coming from work truck background (plumbing business) didn’t think I had to pull the fuse or disconnect the negative on battery to replace a simple dome light bulb.
    A lesson learned.
     
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  20. Jan 9, 2022 at 10:54 AM
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    Psybain

    Psybain Well-Known Member

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    I just made this mistake last night. fml.
     
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