1. Attachments are working again! Check out this thread for more details and to report any other bugs.

how to diagnose ac&fan failure

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by Storyteller, Apr 29, 2015.

  1. Storyteller

    Storyteller New Member

    Joined:
    Apr 29, 2015
    3
    0
    0
    Location:
    Hawaii
    Vehicle:
    2012 Prius c
    Model:
    Two
    I have a 2012 prius c and just replaced the body control module - no problem there, but now the ac and fan will not turn on. Fuses visually look ok (I don't have a tester) and they had been working previously. I live on Molokai - no prius mechanic on the island so I do my own repair when I can - anyone have a suggestion about how to diagnose the problem?
     
    #1 Storyteller, Apr 29, 2015
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,132
    50,047
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    welcome! get a toyota code reader?
     
    #2 bisco, Apr 29, 2015
  3. Storyteller

    Storyteller New Member

    Joined:
    Apr 29, 2015
    3
    0
    0
    Location:
    Hawaii
    Vehicle:
    2012 Prius c
    Model:
    Two
    Lucky me! A friend just called and suggested I check to see if the off button on the fan was stuck - he said it was a design flaw in the prius c - checked the button and, indeed, it was stuck. Wiggled it loose and problem solved! Phew!

    what is a toyota code reader?
     
    #3 Storyteller, Apr 29, 2015
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,132
    50,047
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    congrats!(y) it's called mini vci. you load it on windows 7 and hook it to the obd port. gives you everything the dealers get.
     
    #4 bisco, Apr 30, 2015
  5. Globalgirl13

    Globalgirl13 Junior Member

    Joined:
    Oct 17, 2015
    31
    4
    0
    Location:
    Toronto
    Vehicle:
    2012 Prius c
    Model:
    Technology
    I'm having a similar problem. I turned off the fan, but now I can't seem to figure out how to get it back on. There isn't anything written in the manual about this. Any tips?
     
    #5 Globalgirl13, Oct 22, 2015
  6. ffatta

    ffatta Junior Member

    Joined:
    Jul 8, 2014
    13
    8
    0
    Location:
    Las Vegas, NV
    Vehicle:
    2022 Prius
    Model:
    LE
    Where is that button located?
     
    #6 ffatta, Sep 18, 2019
  7. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    7,427
    6,913
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    It’s the big “off” button contained within the rotary temperature selector. Mine hasn’t stuck yet, but apparently it is possible.
     
    #7 Leadfoot J. McCoalroller, Sep 25, 2019
  8. lech auto air conditionin

    lech auto air conditionin Senior Member

    Joined:
    Sep 5, 2011
    830
    601
    261
    Location:
    san francisco
    Vehicle:
    2012 Prius c
    Model:
    Two
    Mine started sticking. Only noticed it when I accidentally turned it off once. I turned on the a/c the first day we drove it off the dealership lot I never turned off the a/c even since.
    I do plan to clean it with some Deoxit some day.
     
    #8 lech auto air conditionin, Sep 29, 2019
(You must log in or sign up to post here.)