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ECB blink codes 2012 Prius Four - please translate?

Discussion in 'Gen 3 Prius Technical Discussion' started by chaddarack, Aug 1, 2024 at 4:04 PM.

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  1. chaddarack

    chaddarack New Member

    Joined:
    Sep 5, 2023
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    Location:
    Georgia
    Vehicle:
    2012 Prius
    Model:
    Four
    If anyone has access to the manuals and can translate the blink codes to actual codes/errors, please help.

    I have no related engine codes or battery codes, these are the electronic braking system codes. They all come on my dash with an incessant beeping, even without engine trouble codes. The electronic controlled braking system doesn't seem to be giving me regenerative braking, because I feel a lack of braking until the mechanical brakes kick in. My guages show regenerative baking but it feels different in the pedal. The mechanical brakes seem to work well. When I jumpered the pins to get my blink codes, I get the following:

    Traction control light: 45
    Tire pressure monitor: 23
    ABS: 42
    ECB ((!)) 52, 53, 56

    I think these are all pointing towards the ECB codes but I can't find them anywhere and haven't gone to download the repair manuals yet. If anybody already has access to the 2012 repair manuals, can you read me those 3 codes?

    Much appreciated!

    PS. This is my "Frankenprius". JDM Gen4 motor in a gen3 prius x 25k miles. I hope to get another 50k miles out of this new motor. No oil consumption and it purrs like a kitten. I hope I didn't mess the harness, but the brake components aren't really near the area where I worked on the motor and I didn't have to disconnect that part of the harness, and these codes only popped up now 25k miles after the motor swap.
     
    #1 chaddarack, Aug 1, 2024 at 4:04 PM
  2. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
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    1,624
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    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    Probably just the brake parts going bad on the firewall real common all of that usually not a sensor or anything that beeping is beeping generally because of brake system not holding pressure If you don't see a leak onto the ground from one of the wheels it's internal meaning one of those $800 parts are both of them are going to get replaced seems like it's right on schedule by mileage and engine change and all that doing exactly what it's supposed to do. But I can't tell you the blink codes the scanner that's ABS capable should give you real codes for the ABS I know I know.
     
    #2 Tombukt2, Aug 1, 2024 at 5:03 PM
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