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Shifter locked, all lights on. Changed fuse, dashboard went crazy

Discussion in '2.5 Gen Tundras (2014-2021)' started by Chicknsuit, Jul 18, 2025 at 8:53 PM.

  1. Jul 18, 2025 at 8:53 PM
    #1
    Chicknsuit

    Chicknsuit [OP] New Member

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    2017 tundra 5.7 2wd.

    Checked a couple fuses for cigarette lighter. Removed 2 fuses (one was good and 1 wasn't) and replaced the blown fuse. Started truck up, traction control , abs, brake and check engine lights are all on. Also brake controller error and wouldn't go into gear.

    I used shifter lock bypass button got it into gear and while driving I noticed speedometer wasn't working and fuel gauge was moving back and forth from empty to half tank.

    Checked for codes and I can't remember number but it related speedometer. That was the only one.

    Please help and thanks in advance.

    J
     
  2. Jul 19, 2025 at 5:05 AM
    #2
    Tundra234

    Tundra234 New Member

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    Alot of them
    These trucks are very sensitive when it comes to electrical changes. Disconnect the battery for a few minutes to clear it and then reconnect it. If you weren't aware, the truck will shut off the first time you start it after reconnecting the battery.
     
    NewImprovedRon likes this.
  3. Jul 19, 2025 at 9:55 AM
    #3
    Chicknsuit

    Chicknsuit [OP] New Member

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    Thank you for your suggestion. However this did not work.
     
  4. Jul 19, 2025 at 10:20 AM
    #4
    Chicknsuit

    Chicknsuit [OP] New Member

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    I should add that I can drive it but speedo doesn't work, have to use shift lock button, fuel gauge is all over the place.

    The check engine light is now on with P0500. Vehicle speed sensor malfunction. I'll look at that next.

    I'm having a hard time believing that switching out a blown fuse could cause so many issues.
     
  5. Jul 21, 2025 at 7:38 AM
    #5
    birdman076

    birdman076 Bird, bird, bird...bird is the word

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    2015 Brown Tundra Crew Max Limited
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    Re-seat (try just pushing down on them) the fuses around the fuses you pulled. This is/was a known issue on Jeeps and I don't see why it couldn't be the same regardless of manufacturer. You could have inadvertently bumped a fuse for the speed sensor and now its not making connection.
     
  6. Jul 21, 2025 at 7:50 AM
    #6
    KNABORES

    KNABORES Sarcasm incoming

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    I feel we've been dropped into the middle of the story without the proper background info.

    Why did you "check a couple of fuses for cigarette lighter" to begin with?

    How old is your battery?

    Any recent work done?

    Any other symptoms or issues with the truck?

    Is the truck new to you?
     

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