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Auto-OBDII scanners — Parallax Forums

Auto-OBDII scanners

ArchiverArchiver Posts: 46,084
edited 2002-05-24 12:51 in General Discussion
I am attempting to read in data from the OBDII port in a car (Toyota which
uses ISO protocol). Has anyone done this successfully with a stamp? I
have seen rather expensive scanners out there and was hoping I might be
able to do it with a stamp. Thanks in advance, Dan : )

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-05-24 00:19
    Dan,

    Sometimes it is cheaper to buy the wheel than to re-invent it.

    http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=46030

    I have this reader and it works great with my 97' Silverado 4x4. For
    50 bucks does it really make sense to buy a stamp for the same cost
    and then have to hack the pbasic and scrounge for a OBDII connector.

    Sometimes HF sells this for $39. Watch for the sales.


    Jason




    --- In basicstamps@y..., daniel.d.dangremond@j... wrote:
    > I am attempting to read in data from the OBDII port in a car
    (Toyota which
    > uses ISO protocol). Has anyone done this successfully with a
    stamp? I
    > have seen rather expensive scanners out there and was hoping I
    might be
    > able to do it with a stamp. Thanks in advance, Dan : )
  • ArchiverArchiver Posts: 46,084
    edited 2002-05-24 04:23
    Wish they had one that cheap for a '94 Dodge PU -- mine has some soft errors
    I can't catch with the built-in diagnostic indicator and not having OBDII
    makes it alot more expensive.

    I was thinking all OBDII connectors and protocols are the same. They just
    implemented dyno testing for our annual inspection and all the shops can
    jack into the newer cars and use the onboard computer to check sensors,
    etc...


    Original Message

    > Sometimes it is cheaper to buy the wheel than to re-invent it.
    >
    > http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=46030
    >
    > I have this reader and it works great with my 97' Silverado 4x4. For
    > 50 bucks does it really make sense to buy a stamp for the same cost
    > and then have to hack the pbasic and scrounge for a OBDII connector.
    >
    > Sometimes HF sells this for $39. Watch for the sales.

    > > I am attempting to read in data from the OBDII port in a car
    > (Toyota which
    > > uses ISO protocol). Has anyone done this successfully with a
    > stamp? I
    > > have seen rather expensive scanners out there and was hoping I
    > might be
    > > able to do it with a stamp.
  • ArchiverArchiver Posts: 46,084
    edited 2002-05-24 04:23
    Wish they had one that cheap for a '94 Dodge PU -- mine has some soft errors
    I can't catch with the built-in diagnostic indicator and not having OBDII
    makes it alot more expensive.

    I was thinking all OBDII connectors and protocols are the same. They just
    implemented dyno testing for our annual inspection and all the shops can
    jack into the newer cars and use the onboard computer to check sensors,
    etc...


    Original Message

    > Sometimes it is cheaper to buy the wheel than to re-invent it.
    >
    > http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=46030
    >
    > I have this reader and it works great with my 97' Silverado 4x4. For
    > 50 bucks does it really make sense to buy a stamp for the same cost
    > and then have to hack the pbasic and scrounge for a OBDII connector.
    >
    > Sometimes HF sells this for $39. Watch for the sales.

    > > I am attempting to read in data from the OBDII port in a car
    > (Toyota which
    > > uses ISO protocol). Has anyone done this successfully with a
    > stamp? I
    > > have seen rather expensive scanners out there and was hoping I
    > might be
    > > able to do it with a stamp.
  • ArchiverArchiver Posts: 46,084
    edited 2002-05-24 12:51
    OBDII standards came out in '96. But this sometimes only covers basic
    outputs for reading sensors that cover emission standards. I have a new
    02' Toyota Prius hybrid which has a multitude of cool sensors which are
    just waiting to be read. From what I have researched, the ISO protocol
    which Toyota uses is more difficult to read and the Prius specific codes
    may only be read with their $5,000 scanner. I was hoping to possibly read
    in raw data and somehow decipher which codes refer to what sensor. Ford,
    GM and Chrysler/imports use slightly different coding requiring different
    software. Thanks for the lead through HF, I'll look into it. Software
    seems to be the weakest link. Dan : )


    Wish they had one that cheap for a '94 Dodge PU -- mine has some soft
    errors
    I can't catch with the built-in diagnostic indicator and not having OBDII
    makes it alot more expensive.

    I was thinking all OBDII connectors and protocols are the same. They just
    implemented dyno testing for our annual inspection and all the shops can
    jack into the newer cars and use the onboard computer to check sensors,
    etc...


    Original Message

    > Sometimes it is cheaper to buy the wheel than to re-invent it.
    >
    > http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=46030
    >
    > I have this reader and it works great with my 97' Silverado 4x4. For
    > 50 bucks does it really make sense to buy a stamp for the same cost
    > and then have to hack the pbasic and scrounge for a OBDII connector.
    >
    > Sometimes HF sells this for $39. Watch for the sales.

    > > I am attempting to read in data from the OBDII port in a car
    > (Toyota which
    > > uses ISO protocol). Has anyone done this successfully with a
    > stamp? I
    > > have seen rather expensive scanners out there and was hoping I
    > might be
    > > able to do it with a stamp.



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