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Help me please: C1345 c1356 codes

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by DanielH, Apr 11, 2023.

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  1. DanielH

    DanielH New Member

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    Vehicle:
    2004 Prius
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    My car (Prius 2004) has Brake, abs, vsc and (!) lights on.Took it to Toyota dealer for diagnostics and this is the codes that I get:

    C1345: Not learning linear valve offset
    C1356: Decreasing preassure selenoid (FR)

    Front LEFT wheels is locking and causing flat tire. But I don’t understand why the code I am getting (C1356) is for front RIGHT.

    I have a video of what I first thought was the problem before bringing it to the Toyota dealer but the forum won’t let me post it.

    Anyways.

    The mechanic there said I need a new ABS actuator assamby because according to him mine is dead. They said I must pay 3000+ dollars for that.

    Does anyone recognize this problem?

    What are my options. Not experienced with mechanics.

    Thank you
     
    #1 DanielH, Apr 11, 2023
  2. Tombukt2

    Tombukt2 Senior Member

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    Generally with the codes and then with the front wheel locking up that pretty much puts it in perspective for most folks it's time for a break actuator Not sure what you're going to do about that I think for the Gen 2 there may be a supply problem You may try the JDM importers and see if they can get you something out of an auris or something like that..
     
    #2 Tombukt2, Apr 11, 2023
  3. SFO

    SFO Senior Member

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    Welcome to PriusChat!!
    Did you pay the dealership for the above codes (DTCs), as they should've offered the three (3) digit subcodes (INFs or detailed codes), knowing them wouldn't be a bad idea, and they may be on some of the papers you received from the dealer.

    This workup for C1345, notice the four (4) associated 'detailed codes' : 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/cic13456.pdf

    Here is the workup for C1356 with the four (4) associated 'detailed codes' : 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/cic13153.pdf
    We may be able to recommend a Prius centric mechanic within a reasonable distance. Which part of Florida are you nearest, as the state is fairly large. Is Tampa or Titusville nearby?

    Do you have AAA or a towing package?

    FYI : you're moderated until you've posted 5 times.
     
    #3 SFO, Apr 12, 2023
    Last edited: Apr 12, 2023
  4. DanielH

    DanielH New Member

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    2004 Prius
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    hey, thank you for replying. I ended up changing the abs actuator for a second hand one I bought from a salvage yard. Now I am trying to blead the brakes using techstream but it requires that I remove the 2 abs motor relays which I have no idea what they are or where they are located.

    Can anyone help please?
     
    #4 DanielH, Apr 25, 2023
    SFO likes this.
  5. mr_guy_mann

    mr_guy_mann Senior Member

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    R2 and R8 in the underhood fuse box are the relays for ABS motors. A relay is a high current switch that's controlled by a low current electromagnet coil. Screenshot_20230426-002654.jpeg

    Posted via the PriusChat mobile app.
     
    #5 mr_guy_mann, Apr 26, 2023
    SFO likes this.
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