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Thread: Are ElmScan5, ProScan, OBD2AllInOne the same?

  1. #1
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    Are ElmScan5, ProScan, OBD2AllInOne the same?

    Proscan looks exactly like an ELMScan5, but is "customized" ??? according to David Gore in thread ALL-In-One vs ProScan Universal Scan Tool

    OBD2AllInOne looks similar but different to ElmScan5/ProcScan.

    I know these are all ELM 327 based devices, and all seem to have the same LEDs in their cases. Is there any actual difference other than pricepoint (depending on vendor and/or software bundle)?

  2. #2
    Variable Bitrate
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    I believe all those units are based off of the ELM327 chip which is manufactured by ELM Electronics. They will all communicate the same way. You can do a search for ELM327 on Google and probably come up with a nice list of various options you might consider.

    From experience I know ScanTool.net to be an extremely reliable resource (might cost more but you will get it quickly), ProScan is a distributor of theirs. There are some ELM327 interfaces manufactured internationally that offer extreme discount and it may be worth your while purchasing elsewhere if you are in no hurry.

  3. #3
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    I have a USB unit from www.obd2allinone.com and shipping was really fast. It came with clear instructions on the CD and a bunch of free software packages and has worked great.

    It is worth noting that the ElmScan5 USB unit has problems right now:
    http://www.scantool.net/forum/index.php?topic=2025.0
    All the ELM327 based units should work basically the same, but the other circuitry is probably slightly different.

  4. #4
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  5. #5
    VENDOR - OBDPros
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    Quote Originally Posted by paul1 View Post
    That's an expensive one for sure!

    Paul
    www.obdpros.com

  6. #6
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    It costs $20 more, but it looks like he supports ALL OBD protocols, including "CAN-Bus LowLevel (LAWICEL Modus)" that others don't mention.
    By the way, what is it exactly? does it mean that I can use it to extract data from the ECU?
    What kind of software is needed for that?

  7. #7
    VENDOR - OBDPros
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    Quote Originally Posted by paul1 View Post
    It costs $20 more, but it looks like he supports ALL OBD protocols, including "CAN-Bus LowLevel (LAWICEL Modus)" that others don't mention.
    By the way, what is it exactly? does it mean that I can use it to extract data from the ECU?
    What kind of software is needed for that?
    Looking at the site the lawicel mode seems to be "RAW" can. Vehicles using can for OBDII typically implement it on two speeds 250 & 500 KBPS.

    But other parts of the car eg body electronics sometimes implement can networks that operate at slower speeds 128K etc. The Lawicel CAN mode allows you to connect to these networks, the trick though is finding out where the low speed can network is in your vehicle since it is not brought out to the OBD II connector.

    Also the lawicel mode is very lowlevel so in one way it is great as it gives you full control over what you send but it also causes problems since you need to worry about a number of details that ordinarily are handled by the scantool

    Paul (the other paul)
    www.obdpros.com

  8. #8
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    Thank's other Paul for the information.
    I guess this subject is very deep. do you have any recommendation on where to start searching for information on OBD & CAN low level?
    If I want to access low level information , what hardware will I need?

  9. #9
    Constant Bitrate joeyoravec's Avatar
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    Quote Originally Posted by michbound View Post
    Looking at the site the lawicel mode seems to be "RAW" can. Vehicles using can for OBDII typically implement it on two speeds 250 & 500 KBPS.
    Lawicel is a vendor of low-cost, proprietary CAN interfaces. There's little technical meaning to this term.

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