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2005 Lincoln Navigator CAN Bus

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  • 2005 Lincoln Navigator CAN Bus

    Hey, I was wondering if anyone here knows of a cheep PC interface for a vehicle with the CAN Bus protocol instead of the OBD-II. (2005 Lincoln Navigator)

    thanks,
    Matthew

  • #2
    Originally posted by techy101
    Hey, I was wondering if anyone here knows of a cheep PC interface for a vehicle with the CAN Bus protocol instead of the OBD-II. (2005 Lincoln Navigator)

    thanks,
    Matthew
    CAN is OBD2

    Comment


    • #3
      according to the person on obddiagnostics it's a completley different protocol. (which would explain why the pinouts on the plug were all different, and it wouldn't even think about communicating with the OBD-II interface. Also as far as my searches have come up, although they may use the same connector, they are completley different protocols.

      I have been digging around the net, and i found this http://www.aeswave.com/products/Prod...p?i=455&tsw=su

      but it's still a bit high priced for my taste. looking for something more in the $100 range (like the product from http://www.obddiagnostics.com/

      Comment


      • #4
        www.can232.com
        www.valuecan.com

        Comment


        • #5
          CAN is brilliant, if you can get an interface in theory you can control anything in the car - from the headlights to the windows!

          there are plenty of CAN USB interfaces around.

          Comment


          • #6
            Techy101,
            CAN is a communications architecture. OBDII is a government regulation. OBDII regulation can be met on CAN vehicles using several different protocols (CAN or other). You are confusing existing scan tools that don't support CAN (yet) with OBDII regulation. So, a newer "OBDII" scan tool - that supports CAN - can connect to a CAN protocol vehicle via the same standard diagnostic connector. The pins are different within the connector that CAN has implemented.

            "Controller Area Network (CAN)
            Is a high-integrity serial data communications bus for real-time applications
            Operates at data rates of up to 1 Megabits per second
            Has excellent error detection and confinement capabilities
            Was originally developed by Bosch for use in cars
            Is now being used in many other industrial automation and control applications
            Is an international standard: ISO 11898" http://www.can.bosch.com/index.html

            Feyaz,
            There is not necessarily any additional support for controlling vehicle features with CAN vs. any other protocol. Support of features is up to the scan tool implementation of how much OEM proprietary attributes are supported and how many different modules (engine usually, transmission sometimes, body control module hardly ever outside of OEM scan tools, air bag module once in a while, other modules only with OEM scan tools typically). This limitation is not a limitation of a protocol but that OEMs are not regulated to provide uniform methodology for accessing this data on the vehicle like some of the primary engine controller attributes are mandated by OBDII regulation.

            Generally speaking CAN vehicles have more discrete modules which is what makes CAN a popular protocol for newer vehicles to support for it's ability to handle more data traffic to more modules with less error. This would make you think that you can control these modules offboard, but not necessarily true.

            Mods - Can you enhance this forum's sticky for CAN to reduce amount of common posts asking same questions?.

            Comment


            • #7
              Originally posted by techy101
              Hey, I was wondering if anyone here knows of a cheep PC interface for a vehicle with the CAN Bus protocol instead of the OBD-II. (2005 Lincoln Navigator)

              thanks,
              Matthew
              so lemme get this straight... you went out and bought a brand-spankin-new luxury suv, and you're worried about the cost of an interface adapter?
              Mozilla Search Plugin

              Comment


              • #8
                DavidL: Thank you for all the info. It helps to clear stuff up a lot.


                nottastocker: I WISH . There is no way on this earth that i could ever afford a Navigator. It's for a friend. (I tried to convince him to give it to me, but his terms were a bit steep for me)

                Comment


                • #9
                  Originally posted by techy101
                  according to the person on obddiagnostics it's a completley different protocol.
                  that is incorrect
                  PHY layer is different
                  upper layer conforms to J1979 (OBD2) via ISO15765

                  Comment


                  • #10
                    Arise!! My old thread......muahahahahahah

                    Does anyone know where I can find a copy of ISO 11519 (low speed CAN), ISO 11898 (High speed CAN) without spending a fortune?

                    An up to date (4/30/02) SAE J1979 would be nice too, but I can live without...
                    It's been a while...

                    Comment


                    • #11
                      How much is a fortune.. Because High Speed CAN is easy to come by however you will pay for ISO 11519 (or Low Speed Fault Tolerant).

                      What price range are you looking for? I know of some adapters, but the cost will be semi expensive.

                      You know that ISO 11519 isn't going to have OBDII support right?
                      Hack your car's CAN BUS at www.canbushack.com

                      Comment


                      • #12
                        Just get rich quickly, and whatever they're charging for standards will feel like peenuts

                        white bream
                        working on a trilogy: CARGO - UNIGO - MERGO
                        CARGO = the Car Computer
                        Intel Celeron M, [P]SDC, uBlox GPS, GPRS, WLAN, Silabs FM, RDS, TMC,
                        Dual-audio, Onecable TFT, Microsize: 45 x 108 x 168mm (1.8 x 4.3 x 6.6")

                        Comment


                        • #13
                          right, ISO 11519 data busses are going to need to pass through a gateway in order to share with an 11898 bus correct?

                          I'm looking for the documents describing the standards, not the hardware.
                          ISO's website asks quite a bit for them, I was just wondering if they were available to any of a number of students on here, hopefully one that wouldn't mind storing a copy online, temporarily.

                          I've got microchip's products in mind as far as the hardware is concerned.

                          Originally posted by henkbliek View Post
                          Just get rich quickly, and whatever they're charging for standards will feel like peenuts
                          Where was that phone number from that day-trading infomercial.

                          Maybe a book like this will be a more inexpensive but somewhat comparable resource.

                          As far as I understand, the OEMs have their own proprietary interpretations of the protocols. It'd also be nice to have a resource that spelled them all out.... I'd probably have better luck "getting rich quick".
                          It's been a while...

                          Comment


                          • #14
                            Can't help you with the number i'm affraid, we have our own frauds 'round here

                            As for these standards, these won't help you at all I'm affraid. All the basics (hardware) are simple, but the data running over the bus is all (or mostly) proprietary. Have J1979 right here, but with 159 pages a bit too large to anonimize... Att=index
                            Attached Files

                            white bream
                            working on a trilogy: CARGO - UNIGO - MERGO
                            CARGO = the Car Computer
                            Intel Celeron M, [P]SDC, uBlox GPS, GPRS, WLAN, Silabs FM, RDS, TMC,
                            Dual-audio, Onecable TFT, Microsize: 45 x 108 x 168mm (1.8 x 4.3 x 6.6")

                            Comment


                            • #15
                              So this (11898) albeit expensive (part 1 is only 113 USD) (also 11519)wouldn't be a helpful resource when designing a new product that conforms and communicates with existing medium speed data busses (and indirectly the HS bus via gateway)?

                              Regardless, I'd enjoy reading them, I'm sure. I just don't think I'd get ~$1000 worth of enjoyment.

                              So how would an aftermarket company accomplish this step into the automotive CAN world? Sure they could afford the doc's, but with the proprietary protocols, reverse engineering (reading the signals on existing vehicles)?
                              It's been a while...

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