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Gen 3 abs accumulator relay

Discussion in 'Gen 3 Prius Main Forum' started by doothemath, Sep 19, 2018.

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  1. doothemath

    doothemath Junior Member

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    F8686B25-FD92-4457-ACD8-B3EFF87C6E97.jpeg 34DC4254-A6F6-414B-B66B-20EFD7E552A2.jpeg Does anybody know the actual physical location of the2011 ABS accumulator relay? My hybrid mechanic has been working with several contacts at Toyota and his hybrid contacts and they cannot figure out where this relay is? They have replaced the accumulator with a new one and they say something, a pump? Is not getting power now? I will post the codes from a previous mechanics snap on scanner, my dash lights at this time there was also a loud audible beeping sound and the brakes were very hard to stop the car, and the results of my tech stream health check. All of this was recorded BEFORE the hybrid mechanic replaced the accumulator now he seems to be stuck trying to locate a relay.
     

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    #1 doothemath, Sep 19, 2018
  2. bisco

    bisco cookie crumbler

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    is it not in the service manual?
     
    #2 bisco, Sep 20, 2018
  3. ChapmanF

    ChapmanF Senior Member

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    Would be clever, no one would look there.

    -Chap

    [​IMG]
     
    #3 ChapmanF, Sep 20, 2018
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  4. Elektroingenieur

    Elektroingenieur Senior Member

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    I’m not sure there is such a thing, at least known by that name in Toyota’s service publications.

    If you mean to refer to the relays that might be involved in DTC C1253/53, “Pump Motor Relay Malfunction,” one of the codes in the list seen in your photo, they are the three motor relays for the brake booster pump. These relays are built into the skid control ECU, which itself is a part of the brake booster with master cylinder assembly under the hood. In Toyota’s procedures, if any of these relays is faulty, the complete master cylinder assembly is replaced; they’re not like the plug-in relays elsewhere on the car.

    See the description and diagrams under “Electronically Controlled Brake System” in the Repair Manual, available by subscription to techinfo.toyota.com and in the ChiltonLibrary service, to which many public libraries sponsor access. The Repair Manual also has a detailed troubleshooting procedure for DTC C1253. If the brake booster pump was faulty and has been replaced, the problem might now be only a blown fuse, for example.
     
    #4 Elektroingenieur, Sep 21, 2018
  5. ChapmanF

    ChapmanF Senior Member

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    See, now, that's nearly as devious as hiding them in the service manual.

    -Chap
     
    #5 ChapmanF, Sep 21, 2018
  6. doothemath

    doothemath Junior Member

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    Thanks everyone!
     
    #6 doothemath, Sep 25, 2018
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  7. ericbecky

    ericbecky Hybrid Battery Hero

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    Please report back once the solution is found.
    I'm interested in how this turns out.
     
    #7 ericbecky, Sep 26, 2018
  8. Robertto09

    Robertto09 Junior Member

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    Somebody have a photo of the abs relay location under hood?
     
    #8 Robertto09, Nov 6, 2018
  9. Eric mbaabu

    Eric mbaabu New Member

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    Hi,my prius v has got the same codes,did you manage to repair yours?what procedure did you use?thanks
    Posted via the PriusChat mobile app.
     
    #9 Eric mbaabu, Jul 19, 2020
  10. ChapmanF

    ChapmanF Senior Member

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    The best procedure to follow will be what's in the repair manual, because even when two cars give the same code, the cause of the code may be different. Starting from the code, the workup procedure in the manual will lead you to discover the cause.
     
    #10 ChapmanF, Jul 19, 2020
  11. muhammad Raheel

    muhammad Raheel Junior Member

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    Same problem in my car

    V2043 ?
     
    #11 muhammad Raheel, Sep 22, 2021
  12. ericbecky

    ericbecky Hybrid Battery Hero

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    It's been 3 years. I wonder if they ever fixed it. Asked the question, but never came back.
     
    #12 ericbecky, Sep 27, 2021
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