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4-ways flashing continuously

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Stracgan C, Mar 8, 2018.

  1. Stracgan C

    Stracgan C New Member

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    The hazard lights flash without warning continuously. The faster the car is driven the faster they flash. The dealer thinks the cause is related to moisture on the abs module quoted 3-4k with no guarantees...Any ideas?
     
    #1 Stracgan C, Mar 8, 2018
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    That's a bit nervy...

    Apart from the speed related factor, could it be a defective hazard button?
     
    #2 Mendel Leisk, Mar 8, 2018
  3. bisco

    bisco cookie crumbler

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    welcome!
    pull the fuse.
     
    #3 bisco, Mar 8, 2018
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  4. StarCaller

    StarCaller Senior Member

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    how fast you have to drive so they're on steadily?
     
    #4 StarCaller, Mar 8, 2018
  5. Stracgan C

    Stracgan C New Member

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    Not sure ...but it's worth a check
     
    #5 Stracgan C, Mar 9, 2018
  6. Stracgan C

    Stracgan C New Member

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    Yes they are on steadily. We had to pull the fuse to save the battery
    We did...we were concerned it would drain the battery. Thx
     
    #6 Stracgan C, Mar 9, 2018
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  7. bisco

    bisco cookie crumbler

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    sounds like a computer/wiring issue, could be tough to find. hate to say this on a 7 year old car, but i'd just leave the fuse out before giving a dealer thousands for a fishing expedition.

    maybe call toyota to see if they can be helpful in any way.
     
    #7 bisco, Mar 9, 2018
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  8. NutzAboutBolts

    NutzAboutBolts Senior Member

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    You should get an electrical diagram and trace where the wires are and see if you can find a fault somewhere between the wiring. Check each wires for power and see which one stays on and such. It’s hard to diagnose online. You’ll need the right tools to trace it as well.
     
    #8 NutzAboutBolts, Mar 10, 2018
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  9. AzWxGuy

    AzWxGuy Weather Guy

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    Could some liquid have spilled into the button that activates the hazard flashers? The button is located on the flying bridge pretty close to the cup holders. No accidents or body damage anywhere? Rodents chewing on wiring? Lastly, check the state of charge on the 12V battery.
     
    #9 AzWxGuy, Mar 10, 2018
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  10. Dave79

    Dave79 New Member

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    I have same issue on gen 3. Did you ever find out what the issue was?
     
    #10 Dave79, Mar 20, 2018
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