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

C1377 capacitor error

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Adam DiPietro, Sep 26, 2021.

  1. Adam DiPietro

    Adam DiPietro New Member

    Joined:
    Sep 26, 2021
    6
    2
    0
    Location:
    Juneau
    Vehicle:
    2007 Prius
    Model:
    Plug-in Base
    I have a 2007 Prius with the C1377 capacitor error. I’ve switched the fuses for the ABS 1,2,3 and switched out the power brake control module - twice. I have no idea where to look past these things.
     
    #1 Adam DiPietro, Sep 26, 2021
  2. Adam DiPietro

    Adam DiPietro New Member

    Joined:
    Sep 26, 2021
    6
    2
    0
    Location:
    Juneau
    Vehicle:
    2007 Prius
    Model:
    Plug-in Base
    This is a photo of the tech steam code.
     

    Attached Files:

    #2 Adam DiPietro, Sep 26, 2021
  3. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,302
    4,241
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Happen to know the "Detailed Code" (aka INF or subcode)?

    Here is the workup for DTC C1377, notice how it has eight (8) 'Detailed Codes' (INF's) associated with it : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/Prius%20Service%20Manuals%202004/%E4%BF%AE%E7%90%86%E6%89%8B%E5%86%8C/04pruisr/05/21avn/cic13774.pdf

    Ignore DTC B1421 : https://share.qclt.com/%E4%B8%B0%E7%94%B0%E6%99%AE%E7%91%9E%E6%96%AF%E5%8E%9F%E5%8E%82%E8%8B%B1%E6%96%87%E6%89%8B%E5%86%8Cpdf%E6%A0%BC%E5%BC%8F/repair%20manual/04pruisr/05/2044g/cib14212.pdf

    You're being moderated until you've posted five times.
     
    #3 SFO, Sep 27, 2021
  4. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    3,671
    1,716
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    Open the tab for the ABS system in techstream and look at the codes. Next to the code should be a snowflake icon (freeze frame data)- click on that and it should have the INF or subcodes.

    Posted via the PriusChat mobile app.
     
    #4 mr_guy_mann, Sep 27, 2021
  5. Adam DiPietro

    Adam DiPietro New Member

    Joined:
    Sep 26, 2021
    6
    2
    0
    Location:
    Juneau
    Vehicle:
    2007 Prius
    Model:
    Plug-in Base
    Thanks for that link. I haven’t had a chance to dove into it for a few weeks - but will take another look. I’ll post again if I find the problem. Many thanks SFO.
     
    #5 Adam DiPietro, Oct 26, 2021
    Last edited by a moderator: Oct 26, 2021
    SFO likes this.
  6. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,302
    4,241
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Not sure how many miles are on the vehicle, or how strong the HV battery is, but best not to let it sit unused for any real length of time.
     
    #6 SFO, Oct 27, 2021
  7. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    24,912
    16,215
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    The brake capacitor module is in the back of the car next to the 12 volt battery, if you haven't checked things out back there yet.
     
    #7 ChapmanF, Oct 27, 2021
  8. Adam DiPietro

    Adam DiPietro New Member

    Joined:
    Sep 26, 2021
    6
    2
    0
    Location:
    Juneau
    Vehicle:
    2007 Prius
    Model:
    Plug-in Base
    Well I took a hiatus to repair a house - but I’m back at it again. This is the freeze frame data. Looks like value 109. Apologies for the photos of a laptop screen… I know they are a PITA to read. Where should I begin fixing that issue?
     

    Attached Files:

    #8 Adam DiPietro, Mar 28, 2022
  9. Adam DiPietro

    Adam DiPietro New Member

    Joined:
    Sep 26, 2021
    6
    2
    0
    Location:
    Juneau
    Vehicle:
    2007 Prius
    Model:
    Plug-in Base
    SFO, your guide was spot on. Replaced ABS MAIN 3 fuse. :whistle: Clearly a genius over here. Not sure how that slipped past me. But the problem is FIXED.
     
    #9 Adam DiPietro, Mar 28, 2022
    SFO likes this.
(You must log in or sign up to post here.)