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  2. Best OBD-II Scanners for 2024, Tested - AOL

    www.aol.com/best-obd-ii-scanners-2023-223000386.html

    The Autel AL319 OBD-II scanner was slow to boot up, slow to read codes, and difficult to navigate. Thanks to a single directional button, churning through the menus takes some practice (and patience).

  3. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    Multi-brand vehicle diagnostics system handheld Autoboss V-30 with adapters for connectors of several vehicle manufacturers. [35] A range of rugged hand-held scan tools is available. Simple fault code readers/reset tools are mostly aimed at the consumer level. Professional hand-held scan tools may possess more advanced functions

  4. OBD-II Scanner. Modern vehicles typically have an OBD-II port. This is your car’s on-board diagnostics system and is key for understanding any issues that crop up. ... “This is a great tool to ...

  5. Scan tool - Wikipedia

    en.wikipedia.org/wiki/Scan_tool

    OBD 1 vs OBD 2 the vehicle will also dictate what the scan tool is able to display. If the vehicle is equipped with OBD 1 it will have significantly less available data when compared to a vehicle equipped with OBD 2. [3] When a vehicle detects a problem, it generates a DTC code which is a unique code that corresponds to the specific problem ...

  6. ALDL - Wikipedia

    en.wikipedia.org/wiki/ALDL

    Most professional scan tools require a large database of vehicle definitions. [ 5 ] The signaling of ALDL is similar to the RS-232 serial data standard; differing in the voltages used to denote logical one (usually 0 V DC) and logical zero (either +5 V DC or +12 V DC), and that unlike RS-232, both transmit and receive functions are on the same ...

  7. ELM327 - Wikipedia

    en.wikipedia.org/wiki/ELM327

    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]