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ICE comes on anyway

Discussion in 'Prime Main Forum (2017-2022)' started by priuscatprimeguy, Feb 26, 2017.

  1. priuscatprimeguy

    priuscatprimeguy Senior Member

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    When ICE kicked in the green car outline was like a hollow chocolate bunny for about a mile then filled in as a solid chocolate bunny

    Posted via the PriusChat mobile app.
     
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  2. priuscatprimeguy

    priuscatprimeguy Senior Member

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    sorry, no video. Will have to get some kind of setup like @john1701a has

    any suggestions welcome here:D
     
    #582 priuscatprimeguy, Nov 19, 2017
    Last edited: Nov 19, 2017
  3. bwilson4web

    bwilson4web BMW i3 and Model 3

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    New hypothesis: there is an intermittent in the "Front Defrost" switch.

    We are in sub-50F weather for a couple of days. So I'm thinking of documenting some brief "Front Defrost" switch operations:
    • 1 sec - ON and OFF in 1 second
    • 10 sec
    • 50 sec.
    • 100 sec
    • 200 sec
    There is a lag in how long the ICE runs. So I want to find out if the green outline duration follows the duration of the "Front Defrost" switch operation.

    In the meanwhile, could you try cycling the "Front Defrost" switch to see if the engine ON operation becomes consistently shorter?

    As for video, I'm using an iPhone 5s that has different video recording modes. I then load it into a video editor to trim it down.

    Bob Wilson
     
  4. priuscatprimeguy

    priuscatprimeguy Senior Member

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    so.......having the issue present itself in both the rental Premium Prius Prime and my car means nothing?:confused:
     
  5. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Not until we have a diagnosis ... something that changes the frequency and duration. If we find cycling the "Front defrost" system has a measurable effect, we can dive deeper and look at ways to replicate the problem in a controlled environment. Then comes the fun job of convincing 'the powers that be' there is a problem that needs fixing.

    Please understand intermittent problems are the most difficult to diagnose with lots of opportunity to go down the wrong rabbit hole. But if you're willing, I am curious about the problem and will do what I can to move this forward.

    Bob Wilson
     
  6. HPrimeAdvanced

    HPrimeAdvanced Senior Member

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    I nominate Uncle Bob for Toyota Master Troubleshoot Guru, with commensurate pay, of course!!

    .
     
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  7. Chazz8

    Chazz8 Gadget Lover

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    These squares should read "ECO MODE" and "EV MODE" and I believe that is what you meant.

    Help us help you with a picture at startup if you can't find a way or helper to make a video. I would love to see that square outline around the EV MODE box that distinguishes EV MODE from EV AUTO (page 193 of Owner's Manual). I feel like we are making some faulty assumption resulting in your evil ICE on magic trick.
     
  8. priuscatprimeguy

    priuscatprimeguy Senior Member

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    gotcha, pics coming soon:D
     
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  9. priuscatprimeguy

    priuscatprimeguy Senior Member

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  10. bisco

    bisco cookie crumbler

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    looks like you're in ev mode.
     
  11. priuscatprimeguy

    priuscatprimeguy Senior Member

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    yup, you said you wanted pics of EV ECO and EV mode squares, getting it to fire ICE is a crap shoot. It usually kicks in when it's very early in the morning before the sun has a chance to heat up the car. I will continue to pursue a pic when ICE kicks in though:D:cool:
     
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  12. bisco

    bisco cookie crumbler

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    be careful, we don't want to lose you!
     
  13. bwilson4web

    bwilson4web BMW i3 and Model 3

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    We had an overnight, hard freeze with TV reports of 28F, clerks reporting frost on windshields, and airport temperature of 40F. About 12:30 AM, I headed out into mid-40s with the heater set to 77F. About 1/4 mile from house, I became aware the engine had started: square 'EV mode' and outline car. This is the first time it happened to me.

    I tried cycling, ON-OFF, the "Front Defrost" three times to no effect. So I continued on my trip and about a mile later while merging onto a cross town road, it went back to EV mode and the outline car filled with green.

    I'm leaving the car out for a cold soak tonight as we have another freezing night in the forecast. Shortly after dawn, I'll use an IR thermometer to document the car temperatures. Then with the cell phone setup to video record, see if I can capture the event.

    An intermittent problem, there is no guarantee I'll be able to replicate the problem. Last winter, I knew I'd hit the front defrost button by accident but this year will be different.

    Bob Wilson
     
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  14. bisco

    bisco cookie crumbler

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    a member in another prime thread couldn't understand why his gas gauge had been going down, even though he had been driving all ev since filling it up.
    when he looked at his ratio, he found out he had driven 13% in hv. he never heard the engine.
     
  15. john1701a

    john1701a Prius Guru

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    Here's the dual camera setup I use for filming those videos that have been recently shared:

    [​IMG]

    [​IMG]

    [​IMG]
     
    #595 john1701a, Nov 20, 2017
    Last edited: Nov 20, 2017
  16. HPrimeAdvanced

    HPrimeAdvanced Senior Member

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    A VERY good point. It's sometimes hard to hear the motor running; there could be more unexplained events??!!

    .
     
  17. bisco

    bisco cookie crumbler

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    toyota's fault for making it so smooth and quiet.;)
     
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  18. A Prime Factor

    A Prime Factor Formerly "I want my PHEV"

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    I suppose priuscatprimeguy has especially good hearing?
     
  19. HPrimeAdvanced

    HPrimeAdvanced Senior Member

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    Yeah, damn them anyway; the car is just too nice!!

    .
     
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  20. A Prime Factor

    A Prime Factor Formerly "I want my PHEV"

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    The fact that the Prime comes with chocolate bunnies should be a good selling point.:p