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Unified Diagnostic Services (UDS) is a diagnostic communication protocol used in electronic control units (ECUs) within automotive electronics, which is specified in the ISO 14229-1. [1] It is derived from ISO 14230-3 and the now obsolete ISO 15765-3 (Diagnostic Communication over Controller Area Network (DoCAN) [2]). 'Unified' in this context ...
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.
Five signaling protocols are permitted with the OBD-II interface. Most vehicles implement only one of the protocols. It is often possible to deduce the protocol used based on which pins are present on the J1962 connector: [30] SAE J1850 PWM (pulse-width modulation — 41.6 kB/sec, standard of the Ford Motor Company) pin 2: Bus+; pin 10: Bus–
Society of Automotive Engineers standard SAE J1939 is the vehicle bus recommended practice used for communication and diagnostics among vehicle components. Originating in the car and heavy-duty truck industry in the United States, it is now widely used in other parts of the world.
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.
UDS may refer to: Ubuntu Developer Summit, for Ubuntu Linux; Ultra Deep Survey, deepest near-infrared astronomical survey; Unified Diagnostic Services, a vehicle communication standard used for vehicle diagnostics; Union Deportiva Salamanca, a Spanish football team; Unique Development Studios, a video and computer game developer based in Sweden
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.
Keyword Protocol 2000 (KWP2000) – a protocol for automotive diagnostic devices (runs either on a serial line or over CAN) LIN – (Local Interconnect Network) a very low cost in-vehicle sub-network; MOST – (Media Oriented Systems Transport) a high-speed multimedia interface; Multifunction Vehicle Bus – part of the Train Communication ...