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Wont crank and 12v is ok. Lost.

Discussion in 'Generation 1 Prius Discussion' started by bigblock67, Aug 30, 2018.

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  1. bigblock67

    bigblock67 433K with new cells

    Joined:
    Feb 27, 2011
    170
    35
    6
    Location:
    Indiana
    Vehicle:
    2002 Prius
    Model:
    N/A
    Today when turned on ignition dash lights dimmed down.? Soon as I started lights came back to normal. I then pulled 11 codes. Cleared them and car idled normal. Drove car a mile and my gauge shows 305v but dash icon shows battery not full. Only a 301 misfire code. Don’t trust a short trip yet
     

    Attached Files:

    #21 bigblock67, Nov 19, 2018
  2. FireFighterHill

    FireFighterHill Member

    Joined:
    Jun 4, 2016
    221
    92
    21
    Location:
    Orlando/Clermont
    Vehicle:
    2003 Prius
    Model:
    I
    A weak 12v battery will cause all kinds of strange issues with the prius. I would pull the 12v battery, bench charge it and load test it outside the car. If its more than a few years old id replace it. The prius is also very sensitive to resistance in wiring, any corrosion in the 12v and traction battery system can cause lots of strange and intermittent issues due to the change in resistance.
     
    #22 FireFighterHill, Nov 29, 2018
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