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Electrical Issues 2018 Tundra 4x4 SR5

Discussion in '2.5 Gen Tundras (2014-2021)' started by Revan, Dec 11, 2022.

  1. Dec 11, 2022 at 2:52 PM
    #1
    Revan

    Revan [OP] New Member

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    During a bad decision and moment of unclear thinking I lost my mind on what I was doing.
    What did I do?
    • I wanted ACC power to a 3 amp light
    • Yes I know I'm wrong but it's so easy to get it here from "ACC at the key".
    • I took ACC the same way I do from time to time from ACC at the key. I This time I forgot about my remote starter. Opps wrong wires I tapped into the remote starter. Oh it worked until both heaters were on high and the fuse popped.
    Well this ACC trapping at the key blew my fuses and it blew many. I replaced. I do not know the names of the fuses since I have no cover on the interior fuse panel. ODDLY enough I bought the truck new and I've no recall of seeing a cover but again ..... My research has brought near misses on the right fuse panel description etc but the fuses are always off a bit.
    I do have the under-hood fuse box cover.

    I've removed the remote starter and some interior lighting I installed.
    I am now at a form of stock. Nothing else on the truck is modded but the radio and the factory amp replacement. I used Toyota factory harnesses and Factory SXM harnesses etc. Power from 4 gage to Amp and fused at battery terminal.

    ISSUES NOW:
    From video I managed to take off the HUD before nothing came back up. Errors are
    • Drive-Start Control Malfunction
    • Brake Override Malfunction
    Prior to fixing the fuses I got this video errors above.
    • Only constant power at the key "ignition" connection. I used a grounded volt meter "lights up" on power
    • No ACC power at the switch
    • NO OBDII power either my MPVI2 says no protocol found
    • No headlights
    • No interior power to ACC
    • Interior lights off
    Weird results on the HUD just the open door shows with the truck picture

    What works
    • I have power to back of the interior fuse panel "found another thread figured out how to get to power plug.
    • door locks sometimes
    • battery is 12v
    Need badly
    • Picture of a populated 2018 interior fuse panel
    • Need to identify the interior fuse for ACC
    • Need to identify what is feeding the interior fuse box
    • Need to identify the exterior fuse for ACC
    • All I see under the hood is a VSC-ACC it is a relay. I have the original cover
    • All fuses from what I can tell under the hood are not blown I looked at them all
    • Replaced all fuses in the internal fuse box, added extras since I may have screwed up. I removed those extra fuses. I marked the ones I added with black sharpie. Since removed
    • Help

    2018 Toyota Tundra Interior Fuse Panel.jpg
     

    Attached Files:

    Last edited: Dec 11, 2022
  2. Dec 11, 2022 at 5:23 PM
    #2
    GETCHOOSUM

    GETCHOOSUM New Member

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    2018 Super white DC TRD sport 4x4
    Dobinsons 3/2, SCS SR8s, N-fab steps
    Does this help?

    20221211_201719.jpg
     
  3. Dec 11, 2022 at 5:37 PM
    #3
    Revan

    Revan [OP] New Member

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    Hi, Thanks. Yes it is nice what is the year? One question what way is up?
     
  4. Dec 11, 2022 at 5:39 PM
    #4
    GETCHOOSUM

    GETCHOOSUM New Member

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    2018 Super white DC TRD sport 4x4
    Dobinsons 3/2, SCS SR8s, N-fab steps
    2018. Bottom of pic is closest to firewall.
     
  5. Dec 11, 2022 at 5:51 PM
    #5
    Revan

    Revan [OP] New Member

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    Would it be too much to see the cover off and all those sexy naked fuses exposed??
     
  6. Dec 11, 2022 at 6:11 PM
    #6
    GETCHOOSUM

    GETCHOOSUM New Member

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    2018 Super white DC TRD sport 4x4
    Dobinsons 3/2, SCS SR8s, N-fab steps
    Same orientation as previous. Also, your cover may be located where mine is now. Down inside the kick panel lol. It popped off and shot straight down the opening in the top of it.

    20221211_210831.jpg
     
  7. Dec 11, 2022 at 6:42 PM
    #7
    Revan

    Revan [OP] New Member

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    Thank you so much. You did more than can be expected. It is helpful and I totally copied the fuse placement. No help at all.
     
  8. Dec 11, 2022 at 6:45 PM
    #8
    GETCHOOSUM

    GETCHOOSUM New Member

    Joined:
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    Vehicle:
    2018 Super white DC TRD sport 4x4
    Dobinsons 3/2, SCS SR8s, N-fab steps
    Not a problem. Hopefully someone else that knows more than me can point you in the right direction. Good luck. Keep us updated.
     

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