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  2. On-board diagnostics - Wikipedia

    en.wikipedia.org/wiki/On-board_diagnostics

    See #OBD-II_diagnostic_trouble_codes. Service / Mode $04 is used to clear emission-related diagnostic information. This includes clearing the stored pending/confirmed DTCs and Freeze Frame data. [34] Service / Mode $05 displays the oxygen sensor monitor screen and the test results gathered about the oxygen sensor. There are ten numbers ...

  3. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    When the computer detected a fault, it illuminated the MIL. Up until OBDII, on most cars the MIL could output codes. When two pins on the ALDL are jumped, the light would flash the codes, for instance (blink) (pause) (blink) (blink) for code 12. Some manufacturers, such as Honda, retained this feature even after OBDII.

  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. VCDS (software) - Wikipedia

    en.wikipedia.org/wiki/VCDS_(software)

    Unlike generic on-board diagnostics (OBD-II or EOBD), VCDS uses the more in-depth Volkswagen Group-specific manufacturer protocol commands, [4] which allows the user to access all diagnostic capable vehicle systems — even in vehicles which are not covered by generic OBD-II/EOBD (e.g. pre-1996).

  6. Unified Diagnostic Services - Wikipedia

    en.wikipedia.org/wiki/Unified_Diagnostic_Services

    Request Download Downloading new software or other data into the control unit is introduced using the "Request Download". Here, the location and size of the data is specified. In turn, the tester specifies how large the data packets can be. 0x35 0x75 Request Upload The service "request upload" is almost identical to the service "Request Download".

  7. Clear cache on a web browser - AOL Help

    help.aol.com/articles/clear-cookies-cache...

    Clear your browser's cache in Edge • Clear your browser's cache in Safari • Clear your browser's cache in Firefox • Clear your browser's cache in Chrome. Internet Explorer may still work with some AOL services, but is no longer supported by Microsoft and can't be updated. We recommend you download a new browser.

  8. 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.

  9. Clear your browser's cache on AOL Desktop Gold

    help.aol.com/articles/using-the-web-in-aol...

    A web browser's cache stores temporary instances of web pages, allowing them to load faster next time you visit. Clearing your browser's cache is recommended if you're experiencing things like pages freezing, not loading, or being unresponsive.