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Electrical issues

Discussion in '1st Gen Tundras (2000-2006)' started by jasonbailey, Dec 12, 2015.

  1. Dec 12, 2015 at 9:18 AM
    #1
    jasonbailey

    jasonbailey [OP] New Member

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    I have a question about my fuse box. It appears that I'm missing a relay or something. The top square shaped slot is empty but it looks like there are terminals in it for something to be there. As you can see the description given is FL ALT 100A. So my issue, besides what i have already stated, is that my truck starts and drives, but NONE of the electrical works. Radio, headlights, tail lights, dome light, dash; nothing. A few months ago everything did work with the exception of one headlight. it was really dim compared to the other one. I tested a new bulb but it was the same so I figured it was a ground wire loose but I never got around to really working on it. This morning I had the alternator tested and it failed so I know that will fix at least some of it. So if you guys could give me some insight it would really help. I will be happy to answer any more questions if you need more info. ThanksIMG_0953.jpg IMG_0952.jpg
     
  2. Dec 12, 2015 at 3:27 PM
    #2
    LOTSOFTOYS

    LOTSOFTOYS Toyota Whisperer

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    That isn't a relay. It is a 100 amp fuse. They bolt in to the fuse box. Kind of a pita to replace. I wouldnt replace your alternator yet. Chances are it's not bad... you have no fuse lol
     
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  3. Dec 12, 2015 at 10:18 PM
    #3
    jasonbailey

    jasonbailey [OP] New Member

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    I've owned this truck for about 5 years and I have very rarely had to open the hood to check anything. Less on the fuse box. I honestly have no idea how long that thing has been gone. I've never had any issues out of the truck until recently. So by replacing the fuse do you think that will solve my electrical issues? Or at least the majority of them?
     
  4. Dec 13, 2015 at 7:09 AM
    #4
    LOTSOFTOYS

    LOTSOFTOYS Toyota Whisperer

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    I zoomed in in your picture.maybe u could look closer and take a pic too... The fuse is there, the steel strap is there that goes into each terminal. But the casing is gone? Can u tell if the fuse is blown?
     
  5. Dec 13, 2015 at 7:11 AM
    #5
    LOTSOFTOYS

    LOTSOFTOYS Toyota Whisperer

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    This is what it should look like

    100amp-blue-pal-pacific-type-male-slow-blow-fuse-for-auto-car_5014559.jpg
     
  6. Dec 13, 2015 at 8:06 AM
    #6
    jasonbailey

    jasonbailey [OP] New Member

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    If you look really closely you can see that its broken off on the right side but its still close enough it probably made contact to power everything at one point. I'm going to go ahead and replace, it. Thank you, I saw it but it just didnt register with me that somethiing was wrong. Hopefully that will put an end to my, electrical woes. Do you think that could have anything to do with my, dim head light? I had a head light issue before this but never, got around to chasing down the ground wire to check it. The passenger side was fine just the drivers side.
     
  7. Dec 13, 2015 at 8:07 AM
    #7
    jasonbailey

    jasonbailey [OP] New Member

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    Well I guess it would help if I would upload a picture.IMG_0956-1.jpg
     
  8. Dec 13, 2015 at 10:16 AM
    #8
    Black Wolf

    Black Wolf 3 Digit SSEM # 0.378K. I hate junk science

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    That fuse appears to be broken (open) from that picture. I'm thinking at some point someone tried to pry it out not knowing it's not a pull out. Probably why the plastic case is long gone and fuse is split.
     
    Last edited: Dec 13, 2015
  9. Dec 13, 2015 at 10:49 AM
    #9
    csuviper

    csuviper Moderator Staff Member

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    Definitely a start to replace it. May not fix all issues but see what it does fix and go from there.
     
  10. Dec 13, 2015 at 12:53 PM
    #10
    jasonbailey

    jasonbailey [OP] New Member

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    Ok so this is the part they have for the truck, unless there is a specific part number I should get? image.jpgimage.jpg
     
  11. Dec 13, 2015 at 1:41 PM
    #11
    T-Rex266

    T-Rex266 .org? Never heard of her. Staff Member

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    If it's the proper amp you should be good to go.
     
  12. Dec 13, 2015 at 5:11 PM
    #12
    LOTSOFTOYS

    LOTSOFTOYS Toyota Whisperer

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    Looks right. Make sure the truck is warm... that plastic gets brittle when it's cold. Be patient and have about 4 small flat head screw drivers ready in hand. You'll See What I mean:)
     
  13. Dec 13, 2015 at 8:46 PM
    #13
    jasonbailey

    jasonbailey [OP] New Member

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    Well apparently this will be my first build thread ever. My engine compartment fuse box is in pretty bad shape, a few years ago someone broke into the truck and did something to the fuse box. Aside from busting the box up pretty bad i didn't think anything of it. All the mounts are broke even the box itself is broke. It's all held together by the fuse box cover. So anyway, it's a little difficult to see but in the top photo you can see the cable on one side and on the other there is a small hex head bolt. I checked it out online and most write ups say it is a through bolt but on my truck it was 2 small bolts on either side, one with the cable, one without. I had to completely remove them. but the interesting thing is that I had to drill through the fuse box to even have access to it. (I have no clue how a dealer or shop would do this, I tried tugging on it and even removed the back with no luck.) I used a 1/4 inch drive deep socket for both sides. One was 5/16 the other was 10mm. Oh, the hole through the box was 1/2 inch to allow for the socket. Once I had both small screws out the tabs that were left in there just pulled right out. After i put the new fuse in, it didn't need to have the screw pass through, I re attached the cable with the screw with my new access hole and put the screw back in the other side. And the rest is just putting everything back together. IMG_0960.jpg IMG_0966.jpg image1.jpg
     
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  14. Dec 13, 2015 at 8:55 PM
    #14
    jasonbailey

    jasonbailey [OP] New Member

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    Thank you guys a lot. And a special thanks to LOTSOFTOYS for noticing what i just breezed over at glancing at the box. So i will answer any questions if anyone has any. And I do understand that not everyone is willing to drill holes in their fuse box, but hopefully this can help someone. Now I'm going to start a couple more threads. I still have to find the ground wire for my drivers side head light and my oil pressure gauge always reads zero even after i replaced it.
     
  15. Dec 13, 2015 at 8:57 PM
    #15
    jasonbailey

    jasonbailey [OP] New Member

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    btw Matluth, Harry and The Hendersons was and awesome movie! My kids love it! lol
     
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  16. Dec 13, 2015 at 8:59 PM
    #16
    Black Wolf

    Black Wolf 3 Digit SSEM # 0.378K. I hate junk science

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    Damn. What a pita.
    Good that you went with Littlefuse. There are similar PAL rated knock offs for $3 bucks or so that are just plain crap. Littlefuse or Buss are the only brand fuses to use.
     
  17. Dec 13, 2015 at 9:00 PM
    #17
    Black Wolf

    Black Wolf 3 Digit SSEM # 0.378K. I hate junk science

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    upload_2015-12-13_22-0-45.jpg
     
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  18. Dec 14, 2015 at 5:43 AM
    #18
    TruckLife900

    TruckLife900 I'd rather B hunting

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    Get those electrical gremlins outta there! :devil: Looks like a pain, but you're on it :thumbsup:
     
  19. Mar 7, 2020 at 6:01 AM
    #19
    dirtroadfilms

    dirtroadfilms New Member

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    Jason, thank you so much for posting this. Having same problem exactly. Gonna try this today. Fingers crossed. Will post update later...

    Thanks,

    Dirt


    EDIT--

    This thread saved my life. Hey I know some people really hate old threads being revived but, well, why exactly? I never really understood that pet peeve. But in any case, thanks to Jason for this thread and lotsoftoys too. I am not being dramatic when I say it saved me. Friday morning (2 days ago) I drove 5 hours and bought a 2005 tundra that had been sitting up for two years. It cranked. I paid and left. But couldn't begin the trip home because the truck was running off the battery in spite of having a brand new alternator installed. They thought the alternator was bad so they swapped it out for another new one, and still the same problem. It cranked and ran but the alternator was not working. So after the shop working on it all day Friday and Saturday morning I was about to be stranded three states away and gonna have to buy an airline ticket home and pay to have the truck shipped when... I found this thread.

    So I walked across the street to OReilly's and bought the $4 fuse, showed this forum thread to the shop manager (pepboys ....be gentle) and he installed it (with difficulty) and sent me on my way. I drove home with no problem, and the truck is running fine now. Everything works. That little 100A fuse did the trick.

    So i am very thankful to have found this thread. And this forum in general.

    Thank you all. Sorry for the annoying 'bump'

    Have a nice day.

    --Dirt
     
    Last edited: Mar 8, 2020
  20. Mar 8, 2020 at 5:16 PM
    #20
    bmf4069

    bmf4069 Yup, that's car parts in a dishwasher

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  21. Mar 9, 2020 at 4:30 AM
    #21
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    I like seeing problems resolved and hearing feedback. @dirtroadfilms may save another stranded member some day. Or, help someone score a deal on a used truck with a 100amp fuse problem nobody can fix.
     
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