![]() This design uses the following connections: Connections for CAN Breakout ¶ These breakout boards utilize a DB9 to OBDII cable available from SKPang: There are several breakout board options for this library: Most cars after 2008 have CAN buses, with some cars after 2003 supporting them as well (source: ). This code does not output engine diagnostics on the test bed we were working with (2010 Toyota Corolla), as it was not returning a valid PID_REPLY (0x7E8), but others might find success with different cars. We were only able WRITE the standard OBD-II PID_REQUEST (0x7DF) to the CAN bus on a 2010 Toyota Corolla and READ back this data. We've expanded the libraries to include more OBD-II PIDs, which can be found here. This is an adaptation of SK Pang's ECU_Reader project which is used to read OBD-II codes. It comes AS IS with no guarantees that it will work. Notice: This code has not been fully tested. ![]()
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