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Trouble Codes, Help: U0293, U0155, U0142, U0100, B2321 & B1206, C1311

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Paulo219, Jul 23, 2020.

  1. Paulo219

    Paulo219 New Member

    Joined:
    Jul 18, 2020
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    Location:
    Seattle
    Vehicle:
    2015 Prius
    Model:
    Four
    Hello my Prius friends. Recently my 2015 went from 51mpg to 46mpg. I ran a OBD2, several codes have popped up: U0293, U0155, U0142, U0100, B2321 & B1206, C1311. I've checked all the wiring, fuses, all are intacted and no burn fuses. Was wondering if u or anyone you know had this same scenarios and figured out the fixed. O'Reilly guys tested the 12V battery, tested good. Also, I'm trying to locate 20A HEV fuse, but unsuccessful.
     
    #1 Paulo219, Jul 23, 2020
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,796
    48,995
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    what scanner are you using? clear the codes and see what comes back.

    a lot of things can cause mpg deterioration
     
    #2 bisco, Jul 15, 2022
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