Hello,

I am new to the list and in a vertical learning curve at this point. I realize it will take time to become proficient with Microcontrollers but I am eager to get on with it.

I would like to know if anyone has interfaced into an automobile's data link system on 1996 or later models.

The EPA required auto manufacturers to install OBD II (On Board Diagnostic version 2) on '96 and later vehicles, on the OBD I systems (pre'96) if the computer activated the check engine lamp you could get the trouble code with basic test equipment ( Voltmeter for Ford, Shorting key for GM ) however OBD II requires tapping into the datalink connector wnd communicating with the PCM (Power Control Module).

My Check Engine Lamp came on and the dealer charged me $60 to plug into the Data Link Connector and readout the trouble code, it took about 5 -10 minutes tops.

If anyone has any info I would appreciate you sharing it.

Thanks, Paul