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No crank, no lights, help!

Discussion in '2nd Gen. Tacomas (2005-2015)' started by KadeA, Mar 8, 2023.

  1. Mar 8, 2023 at 7:35 PM
    #41
    TnShooter

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    No, you could figure this out.
    If you managed to change the alternator yourself, you could figure this out.
     
  2. Mar 8, 2023 at 7:36 PM
    #42
    TnShooter

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    Check the 7.5A STA fuse for power when cranking.
     
  3. Mar 8, 2023 at 8:16 PM
    #43
    KadeA

    KadeA [OP] Well-Known Member

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    I checked the Alternator fuse and there was no power coming out. I searched around and saw the plastic cover over the battery connector on the alternator had a big hole burned in it. I removed the alternator fuse and busted it opened and found that it had blown. I’m gonna get a new one tomorrow and hopefully this will fix the issue. I’ll update tomorrow
     
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  4. Mar 8, 2023 at 8:17 PM
    #44
    KadeA

    KadeA [OP] Well-Known Member

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    And yes it is a 02
     
  5. Mar 8, 2023 at 9:29 PM
    #45
    point45

    point45 Well-Known Member

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    Before you replace the fuse and start it, find the short that caused the blown fuse first.
     
  6. Mar 9, 2023 at 4:12 PM
    #46
    KadeA

    KadeA [OP] Well-Known Member

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    I’m gonna need some help figuring out what this means. Thank you for the patience.

    After I put the new fuse In and start putting everything back together. I put the positive battery terminal on, then the power wire going into the fuse box. Then when I try to put the wire that goes straight from the terminal to the 120a fuse, it just sparks and blows the fuse. And it doesn’t matter the order that I do. Which ever wire is the last to be secured back in, is the one that will spark and blow. Again I am VERY new to all this so thank your for the patience while I try to understand all this better.
     
  7. Mar 9, 2023 at 4:28 PM
    #47
    Dm93

    Dm93 Test Don't Guess

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    Are you sure you hooked the wires up correctly at the alternator and didn't pinch anything when intalling it?
    Are you certain the battery is connected correctly?

    Also possible the new alternator is shorted.
     
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  8. Mar 9, 2023 at 4:44 PM
    #48
    KadeA

    KadeA [OP] Well-Known Member

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    Yes, I took everything off and made sure it was tight, clean, and in the right place.
     
  9. Mar 9, 2023 at 4:47 PM
    #49
    KadeA

    KadeA [OP] Well-Known Member

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    I wish I could understand those damn diagrams. They seem very helpful.
    I could possibly borrow a test light from a friend. Probably even buy one.
     
  10. Mar 9, 2023 at 4:49 PM
    #50
    TnShooter

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    Is this the wire that is comes from the alternator?
    If so, you could use your voltage meter to check for a short to ground.
     
  11. Mar 9, 2023 at 4:52 PM
    #51
    TnShooter

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    You can ignore that diagram.
    It’s for the 2.7. I don’t know why, but finding diagrams for a 2002 is hard.
     
  12. Mar 9, 2023 at 4:53 PM
    #52
    KadeA

    KadeA [OP] Well-Known Member

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    Ok. So the alternator does seem to be shorted out and I’m almost certain it’s not wired wrong.
     
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  13. Mar 9, 2023 at 4:59 PM
    #53
    TnShooter

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    You could disconnect the wires at the alternator and see if the fuse stops blowing.
    But that fuse is expensive and probably not too easy to replace.
    I’d personally want to see if I have a short to ground first on the wire(s).
    Then disconnect the wire(s) and check again. It’s more thorough and saves you some cash on potentially blown fuses.
     
  14. Mar 9, 2023 at 5:03 PM
    #54
    TnShooter

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    Can you tell me what wire you are referring to that is coming from the terminal to the fuse?
    Is this the alternator wire that is bolted into the fuse box?
     
  15. Mar 9, 2023 at 5:32 PM
    #55
    KadeA

    KadeA [OP] Well-Known Member

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    No. I’m not sure what it’s called. But it’s comes straight from the positive battery terminal and bolts up to the 120a alternator fuse. It’s not connected to anything else.
     
  16. Mar 9, 2023 at 5:34 PM
    #56
    Dm93

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    Post some pictures of your battery cables and the fuse you are dealing with, it may shed some light on what's going on.
     
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  17. Mar 9, 2023 at 5:39 PM
    #57
    KadeA

    KadeA [OP] Well-Known Member

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    The white wire is the one I’m referring to.

    A5FB2737-DEA6-47B0-ACF6-CFF282D3B3DE.jpg
     
  18. Mar 9, 2023 at 5:40 PM
    #58
    TnShooter

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    That would help.
    I have a suspicion that unbolting the White charge wire from the alternator will resolve the problem.
    I would still like to know if it’s the wire itself shorted or the alternator.
    Explaining how to check for a short with out a test light is kind of hard. Or at least for me it is.

    You’re a lot more knowledgeable than me on this stuff, but I would be down at the alternator check for the short.
     
  19. Mar 9, 2023 at 5:59 PM
    #59
    TnShooter

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    That’s the charge wire.
    Without the right equipment and being there.
    I can only make suggestions.

    I’d remove the 120A fuse.
    Hook the white wire back up.
    Place the red lead on my voltage meter to battery Positive +
    Then take my black lead from the voltage meter and place it on the terminals that the 120A plugs into.
    You should NOT see voltage to either terminals. If one has voltage, unbolt the charge wire from the alternator and check again.
    8ECEC596-78E8-4770-9261-B26D2C61FCAD.jpg
     
  20. Mar 9, 2023 at 6:02 PM
    #60
    TnShooter

    TnShooter The TacomaWorld Stray

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    I updated the post above, reread it before testing.
     

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