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Updated GM (markdown)

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Alex von Gluck IV 2020-05-26 15:21:07 -05:00
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GM.md

@ -10,11 +10,12 @@ For general terms, [go here](https://github.com/commaai/openpilot/wiki/General-T
Term | Abbreviation | Definition
--- | --- | ---
Calibration | n/a | Packaged adjustments to running parameters of firmware running on GM vehicles. Updates available from [TIS2Web](https://www.acdelcotds.com)
Firmware | n/a | Base operating system for various devices throughout the vehicle. Updates available from [TIS2Web](https://www.acdelcotds.com)
Calibration | n/a | Packaged adjustments to running parameters of firmware running on GM vehicles. Updates available from SPS within [TIS2Web](https://www.acdelcotds.com)
Firmware | n/a | Base operating system for various devices throughout the vehicle. Updates available from SPS within [TIS2Web](https://www.acdelcotds.com)
GDS2 | Global Diagnostic System 2 | GM system for advanced diagnostics and firmware flashing
GMLAN | GM Local Area Network | Single wire propriety interface present on the CAN connector in GM vehicles.
MDI | Multiple Diagnostic Interface | GM service device connecting the vehicle to a computer. Lower price generics exist such as vxdiag.
SPS | Service Programming System | Firmware and calibrations within the TIS2Web application. Updates can be seen for vehicles by VIN without cost [here](https://tis2web.service.gm.com/tis2web).
Tech2Win | Tech2 for Windows | Emulated legacy diagnostic interfaces for Windows. Runs in an emulated terminal.
TIS2Web | Techline Information System | [ACDelco site](https://www.acdelcotds.com) providing diagnostics and firmware for cars on a subscription basis. Interacts with vehicle via GM MDI. Java webstart application.