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Sadly you are not going to be able to do what you want simply connecting CAN-H and CAN-L to a serial port. Here is a pointer to the physical interface layer for CANBUS. CANBUS Physical layer ISO 11898 What you will find is that while CAN is a "serial bus" that just means that the data is transmitted one bit at a time. It does not mean that it can be ...


1

If your vehicle is 2008 or newer it is using the can protocol, you can use the AT CR command to select which ECU you want to hear from. Here's how: send AT H1 this will turn on headers to see the addresses of the ECU's. send 0100 this is an OBD command to show which of the pids from 1-20 are supported. your response should be like: 7E8064100BE3EA813 ...



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