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  • AutoTap ODB-2 cable...

    Instead of buying a new ODB-2 cable, can I simply reuse my autotap cable for custom communication with my car?

    Or did autotap intentionally cripple it somehow?

  • #2
    Hugh?
    What are you trying to do?

    Comment


    • #3
      I have an autotap unit for my car. Can I re-use that cable that came with my AutoTap?
      I'm trying to write my own custom program to read ODB-2, but I don't want to have to buy a cable if I can simply re-use the AutoTap's cable.

      Comment


      • #4
        download another OBD app and try it out, if it works chances are the cable is "not proprietary"

        ....
        Nano ITX / 512 MB / 60 GB / Panasonic slot load / M1-ATX / Bu303 / Sound blaster 24 / PPi amps / rockford sub

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        • #5
          great idea ... that would be the quickest way to verify that it'll work for my needs.

          Comment


          • #6
            Well, it didn't seem to work...
            I tried using this application:
            http://www.obddiagnostics.com/ProgWin.html

            I used a debug tool to sniff the traffic...

            TX: 20
            RX: 01 02 FF 05 00 07

            what does this mean? what response was the code looking for?

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            • #7
              sure enough, i found the technical manual for this device & i'll use that to communicate for now.

              Comment


              • #8
                Feel free to share your findings. I'm sure there are other autotap owners that might be interested. Myself included
                2001 Pontiac Grand Prix GTP Sedan (Sold)
                2007 Scion tC
                WhereIsMyGPS.net Online Tracker
                http://www.cardomain.com/id/leddy

                Comment


                • #9
                  http://www.vehicleinterface.com/products.asp
                  Technical documents are listed on this page...
                  http://www.vehicleinterface.com/asse...xxP1-1103m.pdf

                  my 01 02 ff 05 00 07
                  is an error message...

                  01 - start of frame
                  02 - control length
                  ff 05 - control bytes: Invalid Start of Frame
                  00 - data length
                  ... no data bytes
                  07 - checksum

                  Comment


                  • #10
                    Any updates/progress?
                    2001 Pontiac Grand Prix GTP Sedan (Sold)
                    2007 Scion tC
                    WhereIsMyGPS.net Online Tracker
                    http://www.cardomain.com/id/leddy

                    Comment


                    • #11
                      nothing just yet other than i am going to use this AutoTap interface to communicate with my OBD-2.

                      Comment


                      • #12
                        What are you using to sniff the traffic?
                        2001 Pontiac Grand Prix GTP Sedan (Sold)
                        2007 Scion tC
                        WhereIsMyGPS.net Online Tracker
                        http://www.cardomain.com/id/leddy

                        Comment


                        • #13
                          I stumbled on it by accident -- my USB KeySpan driver has some diagnostics built in.
                          It'll log the traffic
                          I just wish it could go to a log file rather than just a window which can't be copied from either

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                          • #14
                            Ok I've been doing some research...

                            Request: 11/22/2004 6:38:39 PM.
                            00 01 68 6A F1 00 00 00 00 00 00 00 06 80 00 04
                            Answer: 11/22/2004 6:38:39 PM.
                            01 01 01 04 1B 01 01 00 01 01 00 0C 00 00 04

                            If Autotap is not connected it will retry with no answer.

                            Once verified it will send a request for VIN there are three parts
                            01 6C 10 F1 3C 01 00 00 00 00 00 05 0F 00 04
                            01 6C 10 F1 3C 02 00 00 00 00 00 05 0F 00 04
                            01 6C 10 F1 3C 03 00 00 00 00 00 05 0F 00 04

                            It then looks like it starts gathering parameters supported and DTC's

                            I then added RPM(with car off) as
                            01 68 6A F1 01 0C 00 00 00 00 00 05 00 00 04


                            So I'm drilling down.
                            2001 Pontiac Grand Prix GTP Sedan (Sold)
                            2007 Scion tC
                            WhereIsMyGPS.net Online Tracker
                            http://www.cardomain.com/id/leddy

                            Comment


                            • #15
                              Anyone feel like writing a small vb app to allow us to copy into it the strings posted above and sending as bytes and displaying results?
                              2001 Pontiac Grand Prix GTP Sedan (Sold)
                              2007 Scion tC
                              WhereIsMyGPS.net Online Tracker
                              http://www.cardomain.com/id/leddy

                              Comment

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