![]() ![]() There are ten modes of operation described in the latest OBD-II standard SAE J1979. The scan tool reads the response, and displays it to the technician.A device on the bus recognizes the PID as one it is responsible for, and reports the value for that PID to the bus.The scan tool sends it to the vehicle's bus (CAN, VPW, PWM, ISO, KWP.Typically, an automotive technician will use PIDs with a scan tool connected to the vehicle's OBD-II connector. greater than 14,000 pounds) beginning in 2010, are required to support OBD-II diagnostics, using a standardized data link connector, and a subset of the SAE J/1979 defined PIDs (or SAE J/1939 as applicable for medium/heavy duty vehicles), primarily for state mandated emissions inspections. 8,500-14,000 pounds) beginning in 2005, and heavy duty vehicles (i.e. less than 8,500 pounds) sold in North America since 1996, as well as medium duty vehicles (i.e. SAE standard J/1979 defines many PIDs, but manufacturers also define many more PIDs specific to their vehicles. To understand these figures, corresponding to the parameters (PID), we have included a small program free of charge in our software.OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool. Understanding sets of figures in the tables The exact procedure is explained on theĮOBD-Facile software page. ![]() In exchange for this contribution, the software functions are available for free. We asked the users of our EOBD-Facile software to help create this list by returning their "log" file of the connection to their vehicle. ![]() The tables list the support modes and their parameters. In general, the more recent your vehicle, the more diagnoses you can do on it.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |