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2. On-board diagnostics - Wikipedia

   en.wikipedia.org/wiki/On-board_diagnostics

   It enables the external test equipment to obtain "pending" diagnostic trouble codes detected during current or last completed driving cycle for emission-related components/systems. This is used by service technicians after a vehicle repair, and after clearing diagnostic information to see test results after a single driving cycle to determine ...

3. Scan tool - Wikipedia

   en.wikipedia.org/wiki/Scan_tool

   Voltas IT created a new generation diagnostic tool – OBDeleven, the device which easily connects to the car, monitors all systems, and activates new car's features. It supports Audi, Volkswagen, SEAT, Škoda, Lamborghini, and Bentley. [2] OBD 1 vs OBD 2 the vehicle will also dictate what the scan tool is able to display. If the vehicle is ...

4. 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.

5. Data link connector - Wikipedia

   en.wikipedia.org/wiki/Data_link_connector

   The data link connector (DLC) is the multi-pin diagnostic connection port for automobiles, trucks, and motorcycles used to interface a scan tool with the control modules of a given vehicle and access on-board diagnostics and live data streams. [1] Prior to 1996, many OBD-I data link connector's were in the engine compartment, usually near the ...

6. Snap-on - Wikipedia

   en.wikipedia.org/wiki/Snap-on

   Snap-on produces hand-held electronic diagnostic tools for the computer systems used in most modern cars and heavy duty vehicles at their Kenosha site. Software development happens in the US, Ireland, Australia, Mexico, Brazil and China. Automotive emissions control diagnostics equipment is produced in its San Jose, California diagnostic facility.

7. 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 ...