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  1. ReshiElderberry82

    ReshiElderberry82 New Member

    Joined:
    May 23, 2024
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    Location:
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    Vehicle:
    2013 Prius
    Model:
    Four
    I just replaced the brake pump and actuator on my 2013 toyota prius and i'm having trouble connecting to the unit with scanner tool which is MaxiSys MS906TS. When i try to preform the brake bleeding procedure i get a message that says "Device unable to communicate with the control unit." any help would be greatly appreciated. maybe a different scanner tool or any other suggestions would be a lot of help.

    thanks
     
  2. Tombukt2

    Tombukt2 Senior Member

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    Vehicle:
    2009 Prius
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    Base
    Sometimes this happens You got to make sure if you haven't looked at the factory manual dialogue there's all kinds of things the parking brake has to be down and so on and so forth I don't know whether the aultel system gives you those primers at the beginning of each step or the start of the system whatever so you may need to check that usually when you get that message you haven't done something that needs to be done before you start the whole business.
     
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  3. ReshiElderberry82

    ReshiElderberry82 New Member

    Joined:
    May 23, 2024
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    Location:
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    Vehicle:
    2013 Prius
    Model:
    Four
    yeah i think so, i've ordered a new usb cable to make sure its not that. i will check again tomorrow when i get it. the battery 14.76v. i attached a NOCO Boost Plus 12.V 1000A to the battery to make sure the car battery doesn't die. here is a photo of what pops up when it won't connect.
     

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  4. Brian1954

    Brian1954 Active Member

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    Jan 31, 2021
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    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    Did you buy a new OEM brake pump and actuator or used parts?
     
  5. ReshiElderberry82

    ReshiElderberry82 New Member

    Joined:
    May 23, 2024
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    Location:
    Atlanta
    Vehicle:
    2013 Prius
    Model:
    Four
    i got them off ToyotaPartsDeal. they look brand new but i guess you never know.
     
  6. Tombukt2

    Tombukt2 Senior Member

    Joined:
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    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    They probably should be brand new I guess that they look like it I see an orange light on your scanner I'm assuming that's not the VCI light I'm assuming you have the VCI light and check mark is green indicating there's communication does your VCI cable or plug not flash green when data's moving or something like that? But there are things that have to be done to the vehicle before all of this works the parking brake has to be down you want to be not ready but in ACC or whatever it is with all the lights on whatever it tells you in the factory manual Chapman or somebody will pop it up here for you in a few minutes and if you don't do all that then highly likely it won't work but I'm thinking that when I had this problem because the parking brake wasn't depressed or something like that it didn't talk about communication problems I don't think but it might have I very quickly figured out that my parking brake wasn't down.