Unable to disable reverse beep using bluetooth OBDII

Discussion in 'Gen 3 Prius Accessories and Modifications' started by dkarnes87, Jun 4, 2016.

  1. dkarnes87

    dkarnes87 Junior Member

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    Hey all. Long story short, I picked up a bluetooth OBDII scanner and plugged it up, and tried following the instructions found on this forum. Only problem is, every time I run 3b ac 40, I just get a return of NO DATA. So here's how it goes:

    Connect using ELM327

    ATI
    >ELM327 v1.5
    at sh 7c0
    >OK
    21 ac
    >7c80361ac00
    3b ac 40
    >NO DATA
    21 ac
    >7c80361ac00

    In other words, everything works up until I tell the system to change 00 to 40, at which point it returns NO DATA and doesn't change the variable.

    Any idea what's going on here? For what it's worth, disabling the seat belt worked, so I know the adapter is able to send commands properly.
     
    #1 dkarnes87, Jun 4, 2016
    Last edited: Jun 4, 2016
  2. drysider

    drysider Active Member

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    Vehicle:
    2012 Prius
    Model:
    Four
    Try 03bac40 instead of 3b. also leave out the spaces
     
    #2 drysider, Jun 4, 2016
  3. dkarnes87

    dkarnes87 Junior Member

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    Just tried that, same result. Thinking maybe it needs hex format I also tried 003bac40 and that also didn't work. Same response. Very strange...
     
    #3 dkarnes87, Jun 5, 2016
  4. ATLPrius44

    ATLPrius44 New Member

    Joined:
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    Location:
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    Vehicle:
    2014 Prius
    Model:
    II
    I'm getting the same message
    Has anyone found a solution to this?
     
    #4 ATLPrius44, Nov 12, 2016
  5. MXBNDR

    MXBNDR New Member

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    Location:
    California
    Vehicle:
    2015 Prius
    Model:
    ----USA----
    I'm also having this problem on a 2015 model. Seems to read most PIDs, but "3bac40" returns "NO DATA"
     
    #5 MXBNDR, Dec 19, 2018
  6. pshadow

    pshadow New Member

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    Model:
    I
    The OBD 2 you're using may not be compatible with Prius. priusapp website has a list of OBD 2's that's compatible.


    I used Dr. Prius app, and Panlong OBD 2 to turn it off.
     
    #6 pshadow, Dec 27, 2018
  7. bongsta213

    bongsta213 Junior Member

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    anyone in los angeles area can do this for low price? or maybe for a case of beer??
     
    #7 bongsta213, Dec 29, 2018
  8. bisco

    bisco cookie crumbler

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    what kind of beer?
     
    #8 bisco, Dec 29, 2018
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  9. Raytheeagle

    Raytheeagle Senior Member

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    You’ll go to LA for beer:whistle:?

    And here I thought wine was a draw:p.
     
    #9 Raytheeagle, Dec 29, 2018
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  10. bongsta213

    bongsta213 Junior Member

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    40oz lol
     
    #10 bongsta213, Jan 7, 2019
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