Need info on Class 2 data sent to instrument cluster
I'm working on a project in which I need to find out the exact protocol for the Class 2 messages sent to the instrument cluster. I'm very familiar with the UART information used in the 90's vehicles, but I don't know the Class 2 formats. I know that the message length varies, but I'm hoping someone with a good working knowledge of this can help.
The first part of my project is to be able to read these codes and output the information. My plan is to use a PIC Microcontroller and an LCD display for this purpose.
I greatly appreciate if someone can point me in the right direction.