Crazy warning lights.

Discussion in 'FJ Cruiser' started by Bentvictor, Sep 11, 2017.

What could be wrong? Not the brakes. Seen that before.

  1. OBDC?

  2. Drive Train?

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  1. Bentvictor

    Bentvictor

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    Just happened tonight, no unusual sounds. Taken in and out of 4 WD, no change...

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  2. N22

    N22

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    Do you have access to a OBD reader? Even some cheap one works well.
    Be nice to know what codes it's showing.
     
  3. BMThiker

    BMThiker I aim to misbehave Moderator SILVER Star

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    Yeah, Toyota is known for lighting up the dash with all lights to grab your attention. It could be anything, but as recommended above, plug a scanner into it or take it to a mechanic that has one. They'll be able to tell you if it's air sensor, wheel sensor, etc...
     
  4. Corey

    Corey

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    Mine did the same thing a few months back.
    Ended up costing me around $1.2K I think.
    Left side cat converter went out at around 80K.
     
  5. BMThiker

    BMThiker I aim to misbehave Moderator SILVER Star

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    P401 or similar code for catalytic/02 sensor failure, iirc.
     
  6. blkpngn

    blkpngn

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    Late to the game so you probably got it figured out but happened to me last weekend after four days in Death Valley as I was rolling on some wash board leaving the Springs. It stayed on for three days and then cured itself. Took it in to Toyota and the only thing that popped up was my Mass Air Flow Sensor was malfunctioning. Most likely dirty they said and told me I could clean it myself. Bought the cleaner at Home Depot and one Youtube video later it was done.
     
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