'08 Prius malfunction indicator lamp is lit

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by mprius08, May 26, 2022.

Tags:
  1. mprius08

    mprius08 Junior Member

    Joined:
    Dec 23, 2016
    12
    3
    0
    Location:
    Ohio
    Vehicle:
    2008 Prius
    Model:
    N/A
    I just spent nearly 1k in repairs on my '08 Prius a few weeks ago.

    The repairs were:
    Replace air filter, spark plugs, hood latch release cable
    front disc brake service w/rotors free caliper pins in caliper brackets, replace pins and boots and clean and adjust rear brakes.

    Now my malfunction indicator lamp is lit. I went to Auto Zone to see what codes came up and here's the report.

    Power Train System - Replace Evaporative Emissions (EVAP) Vacuum Switching Valve (VSV)
    Suggested part: EGR Vacuum Solenoid

    The diagnostic trouble codes were:
    Power Train System P0446 Evaporative Emission Control System Vent Control
    Evaporative Emission System Vent Control Circuit
    Secondary DTCs
    C2300 Actuator System Malfunction
    C2318 Low Voltage Error (Power Supply Malfunction)
    and
    Anti-Lock Brake System C1249 Open circuit in stop light switch circuit

    Could any of this be caused by the recent repairs? If not, is this an expensive repair? I can't really afford to sink any more money into my car.

    Thanks in advance for any replies.
     
    #1 mprius08, May 26, 2022
  2. jerrymildred

    jerrymildred Senior Member

    Joined:
    Oct 28, 2016
    11,517
    14,130
    0
    Location:
    Tampa, FL
    Vehicle:
    2017 Prius
    Model:
    Two
    Assuming the Autozone reader is giving good information (not all code readers can read all the Prius codes correctly), the low voltage error would lead me to check the 12V battery to see if low voltage might be confusing the system.
     
    #2 jerrymildred, May 27, 2022
  3. Another

    Another Senior Member

    Joined:
    Jun 22, 2021
    1,807
    513
    0
    Location:
    Naples, Florida
    Vehicle:
    2007 Prius
    Model:
    Touring
    If car was out of service a while, maybe 12v just needs full charge?
     
    #3 Another, May 27, 2022
  4. pasadena_commut

    pasadena_commut Senior Member

    Joined:
    May 2, 2019
    1,894
    567
    0
    Location:
    Southern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    If you get any sort of evap code on a reader not specialized for the car suspect the gas cap. First check that it is actually screwed on tightly. If it was, replace it. In theory you could have the cap tested at a smog station, but that would certainly cost more than buying a generic one to replace it. A year ago a genuine Gates gas cap (for an Accord) was around $11 on ebay.
     
    #4 pasadena_commut, May 27, 2022
  5. Another

    Another Senior Member

    Joined:
    Jun 22, 2021
    1,807
    513
    0
    Location:
    Naples, Florida
    Vehicle:
    2007 Prius
    Model:
    Touring
    Or order the new cap on Amazon, test it and if it doesn’t fix the problem send it back
     
    #5 Another, May 27, 2022
  6. mprius08

    mprius08 Junior Member

    Joined:
    Dec 23, 2016
    12
    3
    0
    Location:
    Ohio
    Vehicle:
    2008 Prius
    Model:
    N/A
    Is it safe to drive until I figure out what to do?
     
    #6 mprius08, May 28, 2022
  7. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,791
    50,372
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    yes, but if it is the 12v, you could get stranded. auto zone will load test it for free
     
    #7 bisco, May 28, 2022
(You must log in or sign up to post here.)