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02 Tundra electrical problems

Discussion in '1st Gen Tundras (2000-2006)' started by elvis233, May 5, 2019.

  1. May 5, 2019 at 1:05 PM
    #1
    elvis233

    elvis233 [OP] New Member

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    interior lights and radio not working... fuses are good, check wires going into back of radio and there is no power... where can I find wire diagram for interior lights and radio !!
     
  2. May 5, 2019 at 1:31 PM
    #2
    Festerw

    Festerw New Member

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    Fuses under the hood ok too? Specifically the 7.5 (or 5 amp) one.
     
  3. May 5, 2019 at 1:48 PM
    #3
    elvis233

    elvis233 [OP] New Member

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    Yes.. all good
     
  4. May 5, 2019 at 6:10 PM
    #4
    00TundraZ

    00TundraZ New Member

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    Make sure connectors are plugged into the harness behind the climate control knobs. I believe there are 2 connectors back there if memory serves me correctly.

    I installed a new radio and went to test it before plugging that harness back in. No power to radio. Once I plugged that harness back in, *poof* magic! Must complete the circuit or something.

    Hope this helps!
     
  5. May 5, 2019 at 7:41 PM
    #5
    elvis233

    elvis233 [OP] New Member

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    There is only one wire plug that goes into the back of radio.. it comes from a amp/booster looking thing behind the heater control and that has a couple plugs going into it... very hard to get access to
     
  6. May 5, 2019 at 8:26 PM
    #6
    00TundraZ

    00TundraZ New Member

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    When you pop the whole face off for the center console controls (this covers the upper middle air vents, the clock, the 3 climate control knobs, etc) there should be a wiring harness that attaches to a click in type socket behind the climate controls. That is what I meant. I tried testing my radio before reinstalling everything to make sure I had power, but I had nothing. Once I plugged those wires back into the harness sockets I was good to go. Completed the ‘circuit’ and got power to my radio. If this doesn’t make sense I can grab pictures tomorrow.
     
  7. May 5, 2019 at 8:29 PM
    #7
    elvis233

    elvis233 [OP] New Member

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    Thanks... everything is plugged in
     
  8. May 5, 2019 at 8:39 PM
    #8
    00TundraZ

    00TundraZ New Member

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    dang. Ok. Was worth a shot!
     
  9. May 6, 2019 at 9:28 AM
    #9
    Festerw

    Festerw New Member

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    Here's the electrical manual. Hopefully you can track it down.
     

    Attached Files:

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  10. May 6, 2019 at 1:59 PM
    #10
    elvis233

    elvis233 [OP] New Member

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    After 10 hours tracing and testing electrical components I finally figured out why I was having so many electrical problems... water been getting into the fuse box and corroded shit out it.. anybody know where I can pickup a fuse box for a 02 Tundra

    5553965D-440B-4991-95B3-4D205E5D300C.jpg 88ED3EC7-74D6-4FC3-BE97-9CF4E2DEFEA2.jpg

    To all the people that helped me... Thank You !!
     
    Last edited: May 6, 2019
    bmf4069, mtntop, TX-TRD1stGEN and 3 others like this.
  11. May 6, 2019 at 3:00 PM
    #11
    landphil

    landphil Overland or oversee?

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    Damn. Now to find the leak too, windshield would be suspect numero uno.
     
  12. May 6, 2019 at 3:37 PM
    #12
    Professional Hand Model

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

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    Where was this component located?
     
  13. May 6, 2019 at 3:44 PM
    #13
    elvis233

    elvis233 [OP] New Member

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    It was corrosion inside the cabin fuse box.. water is getting into left side corner of the cabin some how, either windshield or somewhere else.. I have to some testing with garden hose
     
    Last edited: May 6, 2019
  14. May 6, 2019 at 4:04 PM
    #14
    Professional Hand Model

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

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  15. May 6, 2019 at 4:16 PM
    #15
    Professional Hand Model

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

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    Elvis in the house. Was your fuse box wet?

    Reason I’m asking is because my fuses had some very light corrosion on them. I assume normal, but I did not pull the box like you have and wonder if mine looks like yours just from natural humidity. I’ve never seen a leak on my drivers side.

    I’ve had a theory on these 1st Gens that many of these ‘gremlin problems’ are corrosive/electrical situation based.

    I’ll wait to hear back. Jelly Donut! (Farts).
     
  16. May 6, 2019 at 4:38 PM
    #16
    elvis233

    elvis233 [OP] New Member

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    Yes... there is water getting into the drivers side corner of the cabin under dash. Haven’t figured out where the leak is yet but I’m suspecting the windshield
     
  17. May 7, 2019 at 4:03 AM
    #17
    Professional Hand Model

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

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    Random Factoids: Elvis had a Jelly Donut in his stomach post-mortem examination. Died on a toilet seat.
     
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  18. May 7, 2019 at 4:26 AM
    #18
    Festerw

    Festerw New Member

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    It's hard to tell from the pics, is anything actually damaged or is it just crusty?

    If it's just crusty you could try soaking it in baking soda and water and scrubbing the crud off.

    Otherwise I'd hit a scrap yard to find a good one. www.car-part.com has a bunch for under $100.
     
  19. May 7, 2019 at 4:38 AM
    #19
    Professional Hand Model

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

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    I was thinking the same per cleaning up the assy. Looked hard at Elvi (singular Elvis) pics last night and its hard to tell if some of the prongs are ‘fried’ and/or corroded off. The corrosion probably is on the backside of the metal abutting the plastic as well which may or may not cause future weirdness. Probably a low risk high reward is to obtain a new(er) panel.

    I would love to clean that panel and slather some electrical grease on it, though.
     
  20. May 7, 2019 at 5:52 AM
    #20
    elvis233

    elvis233 [OP] New Member

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    5463CE47-9A21-4187-8E04-086E3613DC77.jpg

    It’s damaged... Some of pins where corroded so bad they broke off
     
  21. May 7, 2019 at 6:04 AM
    #21
    elvis233

    elvis233 [OP] New Member

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    Also some of wire plugs that go into the fuse box have corroded and broken off wires

    DE4FDC18-5C72-4E34-B544-A996B2A7FD83.jpg
     
  22. May 7, 2019 at 6:20 AM
    #22
    elvis233

    elvis233 [OP] New Member

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    This all started when my check engine lite came on and my gas pedal went dead... I was able to limp home with only 10% of gas pedal working. Next day I broke out the scan tool and pulled a P1127 error code (ETCS Actuator Power Source Circuit Malfunction) while diagnosing this problem I noticed the radio and courtesy lights where not working and that’s how I got to this point
     
  23. May 7, 2019 at 7:42 AM
    #23
    Festerw

    Festerw New Member

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    That's a mess for sure. I'd look for a local yard and see if you can get the whole panel and plugs with about a foot of wire left attached. Depin and reuse the good wires you have and splice new ones for the crapped up ones.
     
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  24. May 7, 2019 at 10:15 AM
    #24
    elvis233

    elvis233 [OP] New Member

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    751C3C60-8DA2-4023-BCAD-8BDA47B0CA62.jpg Just pulled new/used cabin fuse box from a 01 tundra at my local salvage yard (Holland’s in North Billerica Ma) $70.. They had three first gen tundra’s to choose from
     
  25. May 8, 2019 at 5:28 AM
    #25
    elvis233

    elvis233 [OP] New Member

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    Repaired all broken or corroded wires then installed new cabin fuse box.. Courtesy lights and radio where working again but I had a new problem. The power windows and door locks where not working.. Then I remembered the tundra I took the cabin fuse box out of didn’t have power windows and door locks at the time I didn’t think it would make a difference. The cabin fuse box was a exact match to mine except for one thing the color of one plug on the front of the fuse box. Mine is brown and salvage yard replacement is green


    1B037A77-A205-4E97-93ED-4473717E5BE1.jpg
     
  26. May 8, 2019 at 5:53 AM
    #26
    TX-TRD1stGEN

    TX-TRD1stGEN I'm not taking a knee

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    Is the new one missing a pin in that connection?
     
  27. May 8, 2019 at 5:54 AM
    #27
    TX-TRD1stGEN

    TX-TRD1stGEN I'm not taking a knee

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    You have some different size fuses as well.
     
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  28. May 8, 2019 at 6:37 AM
    #28
    elvis233

    elvis233 [OP] New Member

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    No missing pins.. there all the same !!
     
  29. May 8, 2019 at 7:07 AM
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    TX-TRD1stGEN

    TX-TRD1stGEN I'm not taking a knee

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    Same wires on the plug as well??
     
  30. May 8, 2019 at 11:00 AM
    #30
    elvis233

    elvis233 [OP] New Member

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    Back at the salvage yard going to pick up a new cabin fuse box with the green plug.. hope this solves my problem
     

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