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Front Windshield wiper will not stop after tint

Discussion in 'Gen 4 Prius Technical Discussion' started by Will_Prius16, Aug 29, 2016.

  1. Will_Prius16

    Will_Prius16 Member

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    I'm so upset right now. I took my brand new 2016 car into the local tint shop for tint. Once they were done, the car's front Windshield wiper would not turn off. Despite the lever on the off position, the wipers kept going off. They tried to blow air off from all the door panels but couldn't get it to stop. Ultimately, they just pulled out the fuse and told me to come back in a couple of days.

    Anyone any ideas?

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  2. krmcg

    krmcg Lowered Blizzard Pearl Beauty

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    Did you have the windshield tinted? Why?
     
  3. Will_Prius16

    Will_Prius16 Member

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  4. krmcg

    krmcg Lowered Blizzard Pearl Beauty

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    That is good. Now the riddle makes less sense though.
     
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  5. alanclarkeau

    alanclarkeau Senior Member

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    Is the screen dirty - my wipers turn on if there's just a trace of mist on the screen - but they have to be in the "AUTO" position first.
     
  6. Will_Prius16

    Will_Prius16 Member

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    What screen are you referring to? Everything is in the off position

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  7. ChapmanF

    ChapmanF Senior Member

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    My guess would be: if you take the time on your own to track the problem down (wiring diagram helps), you might eventually find the exact spot where some wiring got damaged, a connector improperly reconnected, or the like, and after finding that exact spot, you might be able to think about why they would have been near that spot on a tint job, and then you could come up with a respectable theory of what happened.

    I'd also guess that if you just take it back to them to fix, they'll probably fix, but probably never give you the straight story on whatever they figure out they did. :)

    I don't have a Gen 4 wiring diagram. You might want to check in it to see whether the wiper's actually controlled by the Body ECU (that is, is the wiper switch on the column just an input to the ECU, with the ECU responsible for driving the wiper relays/motors?). If that's the case, you might get an improvement if you interrupt the 12 volt supply for a bit, just to get the ECU to reboot. Maybe in doing the work they created some brief electrical glitch that confused it.

    -Chap
     
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  8. ChapmanF

    ChapmanF Senior Member

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    Looks like alanclarkeau is from down under, and would say windscreen where we say windshield.

    I didn't think of that? Does your model have the auto, rain-sensing wipers?

    Could the tint shop have left some conductive material over wherever the rain sensing element happens to be?

    To be honest, I don't know exactly how the rain sensing is supposed to work: whether it's just electrical conductivity, or some other way of detecting. The New Car Features Manual is where such things get explained.

    -Chap
     
    #8 ChapmanF, Aug 29, 2016
    Last edited: Aug 29, 2016
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  9. alanclarkeau

    alanclarkeau Senior Member

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    sorry - windscreen/windshield.

    From watching a car (years ago) being tinted, the only electrical items which, that time, were interfered with were the door panels - with window and mirror switches, and the rear window, where they unplugged the heater element while they were tinting the rear screen, and re-plugged the terminals in. It could be worth checking that they've been reconnected - and that the rear window heater works.
     
  10. Will_Prius16

    Will_Prius16 Member

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    I'll check all these suggestions in the morning. Thanks guys.

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  11. Will_Prius16

    Will_Prius16 Member

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    As far as auto sensing, I don't have that. I have the base model 2.

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  12. Will_Prius16

    Will_Prius16 Member

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    Update. Put back the fuse in today and issue no longer exist.

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  13. Jennifer Ann

    Jennifer Ann New Member

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    I'm having this issue now after the tint shop says they drained my brand new battery today putting tint all around. What file fixed your issue?
     
  14. Jennifer Ann

    Jennifer Ann New Member

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