Ads
related to: obd2 protocol programming kit reviews
Search results
Results From The WOW.Com Content Network
The ELM327 abstracts the low-level protocol and presents a simple interface that can be called via a UART, typically by a hand-held diagnostic tool or a computer program connected by USB, RS-232, Bluetooth or Wi-Fi. [2] New applications include smartphones. [3] There are a large number of programs available that connect to the ELM327. [4] [5]
An OBD II Car Computer design [17] is described by NerdKits using their AVR-based microcontroller kit. This implements the SAE J1850 VPW variant of the OBD-II protocol suite (so it only works with certain cars that use VPW) and displays RPMs, Coolant Temperature, Vehicle Speed and Percent Throttle on an LCD.
OBD-II is an improvement over OBD-I in both capability and standardization. The OBD-II standard specifies the type of diagnostic connector and its pinout, the electrical signalling protocols available, and the messaging format. It also provides a candidate list of vehicle parameters to monitor along with how to encode the data for each.
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 .
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.
A passthrough device is a device used in conjunction with a computer to reprogram vehicle control modules through the OBD-II/CANbus port. [1] Each manufacturer has their own type, but SAE International standardized the J-2534 universal requirements in 2004, requiring all manufacturers to allow vehicles sold in the United States of America and Europe to accept powertrain reprogramming through ...