DIY Flashing dash lights explained ...... or maybe not

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Thread: Flashing dash lights explained ...... or maybe not

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    Supporter mendonsy's Avatar
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    Default Flashing dash lights explained ...... or maybe not

    As many of you are aware, I have been working on a spreadsheet to try to sort out the meaning of the various dash light patterns which occur when there is a problem. While it has not produced the results that I expected, it does seem to have some value so I am attaching a copy of it here:

    I originally expected to find patterns that would allow everyone to diagnose problems from the lights. While that does not appear to be true, the light patterns do seem to be consistent when a failure occurs so they have some value.
    If you have a problem that results in these light patterns please post a link to the thread discussing the problem here.
    1) Insure that you list exactly what lights were displayed.
    2) Let me know exactly what the problem was and how to fix it.

    This thread will be much more useful if the actual problems are posted elsewhere and a link to them is attached here.

    Oh!... and thanks again to Tundradrenalin for figuring out a way to update the pdf file without breaking the links to it.

    Edit: The way the the TS forum deals with attachments has changed. The most current copy of the "lights" spreadsheet will now be attached to this post only.
    Attached Thumbnails Attached Thumbnails Lights.pdf  
    Last edited by mendonsy; 08-15-2013 at 06:08 PM. Reason: Updated spreadsheet
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    Mark it eight, Dude... MaylonTRD's Avatar
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    Default Re: Flashing dash lights explained ...... or maybe not

    This needs to be a sticky. Thanks for all the work you've done to help the forum.
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    Default Re: Flashing dash lights explained ...... or maybe not

    Good start! nice job with the research
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    Default Re: Flashing dash lights explained ...... or maybe not

    Now I see why you were wanting details from my ordeal yesterday. Too mich stress yesterday but I'll check to see what fuses they were exacty and let you know which lights and issues they corrected.
    2009 5.7L Rock Warrior, Black, cold/ tow package

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    Default Re: Flashing dash lights explained ...... or maybe not

    MENDONSY...................YOU'R THE MAN, thanks for all you do.
    Never pick a fight with an old man,
    if he's too old to fight, he'll just KILL YOU

    Tundra Tin Man

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    Default Re: Flashing dash lights explained ...... or maybe not

    When I had the 2WD/4HI/4LO switch slightly past the 2WD part, it was flashing the 4HI and 4LO lights.
    I'm guessing it was a limp mode. Was at that time in 2WD. Switching the switch back to 2WD turned the lights off.
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    Default Re: Flashing dash lights explained ...... or maybe not

    Quote Originally Posted by artbran View Post
    When I had the 2WD/4HI/4LO switch slightly past the 2WD part, it was flashing the 4HI and 4LO lights.
    I'm guessing it was a limp mode. Was at that time in 2WD. Switching the switch back to 2WD turned the lights off.
    Added to the spreadsheet. Thanks!!
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    Default Re: Flashing dash lights explained ...... or maybe not

    Sitting at Toyota dealer now. Last night had 4low and vsc flash and cel steady burn. Limp low power mode too. Started up this am, same lights, but no limp mode noticed. I will advise on results.

    5.7 Crewmax Ltd. 4x4. 2008

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    Default Re: Flashing dash lights explained ...... or maybe not

    Air induction pump failure.

    $2800! Having them try to warranty it now. So far not very happy or impressed. I was about to buy a second Tundra for my business.

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    Default Re: Flashing dash lights explained ...... or maybe not

    Added ..... Thanks
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    Default Re: Flashing dash lights explained ...... or maybe not

    Last night truck dashboard lit up like a xmas tree....

    I had

    blinking 4LO 4HI
    ABS On
    VSC ON
    Brake ON

    several others where on as well, i think trac, but i dont recall 100% on the rest...

    restarted the truck and they all went out except ABS stayed on for awhile, then went out...

    I'm puzzled, dealer is also puzzled. I let u know if i find anything out..

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    Default Re: Flashing dash lights explained ...... or maybe not

    I have not seen that combination before so I have added it on the list.
    As a wild guess I would say ice on a wheel sensor.
    If you figure out what it was let us know.
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    Default Re: Flashing dash lights explained ...... or maybe not

    Backing out of the parking lot from work today I experienced:

    4 HI / 4 LO Blinking lights

    ABS, VSC and Brake Solid lights

    I was parked in about 6" of snow and temp was in the mid 30s. The truck was slipping and lost a little traction while backing out. The roads are clear with some slush and snow left in the parking lots.

    Shut the truck off, restarted and all went away except for the brake and I think ABS. After rolling a few feet they also shut off. No issues since and I will inquire with the dealer on the next service.

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    Default Re: Flashing dash lights explained ...... or maybe not

    Hmmmm........ That's two of those today.
    Is there a full moon??
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    Default Re: Flashing dash lights explained ...... or maybe not

    my 2008 tundra have 4 light on the check engine and traction control are on the vsc and 4low are flashing
    Last edited by georgeliera; 02-14-2011 at 12:51 PM.

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