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  2. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    The CAN protocol was developed by Bosch for automotive and industrial control. Unlike other OBD protocols, variants are widely used outside of the automotive industry. While it did not meet the OBD-II requirements for U.S. vehicles prior to 2003, as of 2008 all vehicles sold in the US are required to implement CAN as one of their signaling ...

  3. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    OBD-II PIDs (On-board diagnostics Parameter IDs) are codes used to request data from a vehicle, used as a diagnostic tool. SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections .

  4. ELM327 - Wikipedia

    en.wikipedia.org/wiki/ELM327

    The ELM327 is a programmed microcontroller produced for translating the on-board diagnostics (OBD) interface found in most modern cars. The ELM327 command protocol is one of the most popular PC-to-OBD interface standards and is also implemented by other vendors.

  5. Talk:On-board diagnostics/Archive 1 - Wikipedia

    en.wikipedia.org/wiki/Talk:On-board_diagnostics/...

    2 comments Toggle List of OBD Applications subsection. 1.1 Commercially available scan tools. 1.2 Software. 2 Pre-2009 Talk. 34 comments Toggle Pre-2009 Talk subsection.

  6. General Motors Local Area Network - Wikipedia

    en.wikipedia.org/wiki/General_Motors_Local_Area...

    General Motors Local Area Network (GMLAN) is an application- and transport-layer protocol using controller area network for lower layer services. [1] It was standardized as SAE J2411 for use in OBD-II vehicle networks.

  7. Data link connector - Wikipedia

    en.wikipedia.org/wiki/Data_link_connector

    After 1996, many manufacturers retained their proprietary connectors in addition to the OBD-II interface, because OBD-II ports are only required to transmit emission-related codes and data. [ 2 ] J1708 is a DLC used on heavy duty vehicles.

  8. SAE J1587 - Wikipedia

    en.wikipedia.org/wiki/SAE_J1587

    Society of Automotive Engineers standard SAE J1587 is an automotive diagnostic protocol standard developed by the Society of Automotive Engineers (SAE) for heavy-duty and most medium-duty vehicles built after 1985. The J1587 protocol uses different diagnostic connectors. Up to 1995, individual OEMs used their own connectors.

  9. Keyword Protocol 2000 - Wikipedia

    en.wikipedia.org/wiki/Keyword_Protocol_2000

    Keyword Protocol 2000, abbreviated KWP2000, is a communications protocol used for on-board vehicle diagnostics systems (OBD). This protocol covers the application layer in the OSI model of computer networking. The protocol is standardized by International Organization for Standardization as ISO 14230.