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Yellow (!) After 7 seconds After replacing battery

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Jmack111, Oct 7, 2017.

  1. Jmack111

    Jmack111 Member

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    yellow (!) after 7 second after replacing a battery with optima yellow top and had HUD going out too. We tried the fuse thing. And ended up doing the fuse and the battery. Fixed dash With the temporary fix didnt have time to replace cap on the HUD board. Real fix.

    Fix for yellow (!) Was 8968047010. $28.00 on ebay the brake power supply next to 12v battery
    Inside was a bunch of caps like a back up battery for the brakes and a control cpu every think look good but swapping it out fix the problem.
    You help me out . And others

    Posted via the PriusChat mobile app.
     
    #1 Jmack111, Oct 7, 2017
  2. Locksmith

    Locksmith Member

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    Curious, was it ok prior to the replacement? I'm thinking you could avoid the problem by jumpering another battery to maintain power during the swap?
     
    #2 Locksmith, Oct 7, 2017
  3. Jmack111

    Jmack111 Member

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    Had no (!) Light before just a HUD problem display going out. Work after swapping out the brake backup supply

    Posted via the PriusChat mobile app.
     
    #3 Jmack111, Oct 7, 2017
  4. bisco

    bisco cookie crumbler

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    what was the old 12v reading, and what is the new one reading?
     
    #4 bisco, Oct 7, 2017
  5. Jmack111

    Jmack111 Member

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    #5 Jmack111, Oct 7, 2017
  6. bisco

    bisco cookie crumbler

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    maybe you just need to reset it with a code reader.
     
    #6 bisco, Oct 7, 2017
  7. Jmack111

    Jmack111 Member

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    #7 Jmack111, Oct 7, 2017
  8. bisco

    bisco cookie crumbler

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    ah, glad to hear it.
     
    #8 bisco, Oct 7, 2017
  9. Jmack111

    Jmack111 Member

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    (!) Yellow it come on 7 seconds after engine come on now 1509240166471.jpeg was fine before battery. Just a HUD out trying to make the dash come on
    The box next to battery fixed some of it was now there a delay

    Clear code now there gone

    Tried paper clip and brake 10 times power off.
    Checked all fuse there all good

    Gets 50mpg still breaks seam to work just fine

    Posted via the PriusChat mobile app.
     
    #9 Jmack111, Oct 28, 2017
  10. Jmack111

    Jmack111 Member

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    #10 Jmack111, Oct 28, 2017
  11. bisco

    bisco cookie crumbler

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    it worked fine for 3 weeks?
     
    #11 bisco, Oct 28, 2017
  12. Jmack111

    Jmack111 Member

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    Less then 1 day he just got back with the car

    Posted via the PriusChat mobile app.
     
    #12 Jmack111, Oct 28, 2017
  13. bisco

    bisco cookie crumbler

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    ah. perhaps you'll need tech stream.
     
    #13 bisco, Oct 28, 2017
    Raytheeagle likes this.
  14. benkhanobi

    benkhanobi Member

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    When I was a teenager, a VW beetle could get 40mpg at 50 mph and a mechanic with an 8th grade education could fix it. Life was simple. 25 years worth of rust killed off a VW Beetle and broken electronics will be the coup de grace for the older Prii
     
    #14 benkhanobi, Oct 28, 2017
  15. Sam Spade

    Sam Spade Senior Member

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    Was the new battery fully charged BEFORE being put into service ?
    If not or you don't know, that should be done now.
     
    #15 Sam Spade, Oct 29, 2017
  16. Jmack111

    Jmack111 Member

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    it was drove a few weeks now with. The ligbt on
    it 12.5v now

    Posted via the PriusChat mobile app.
     
    #16 Jmack111, Oct 29, 2017
  17. Jmack111

    Jmack111 Member

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    Update: found 15amp Amp open replaced still opening fuse . Swapped out brake box agian out of working car after reset and fuse no error move box to other car error (!) Popped up asking for a exchange now
    odd thing not blowing fuse in other car and didn't have to reset to make error go a way. Bad one is a 04 and working on a 08

    Posted via the PriusChat mobile app.
     
    #17 Jmack111, Oct 29, 2017
  18. bisco

    bisco cookie crumbler

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    huh(n)
     
    #18 bisco, Oct 29, 2017
    Mendel Leisk and Raytheeagle like this.
  19. Patrick Wong

    Patrick Wong DIY Enthusiast

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    It would really help if you could be specific about exactly what fuse you replaced. For starters, what is the name of that fuse?

    If you don't know, take a picture of the fuse box and point to the replaced fuse's location.
     
    #19 Patrick Wong, Oct 29, 2017
  20. Sam Spade

    Sam Spade Senior Member

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    That does NOT change the fact that most new batteries need to be FULLY charged at least once and the car might not really accomplish that, no matter how far or long you drive it.
     
    #20 Sam Spade, Oct 30, 2017
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