retrieving codes on 1994 park avenue
I have 1994 Park Avenue & the Service Engine Soon light stays on steady. It has an
OBD2 (16 pin) connector. My scan tool communicates with 1996 up. Everyone I talk to
says I have OBD1. It is not a 12 pin connector. What scanner will communicate with this
Most good scanners will test both systems. Check your build date, if it is indeed a 1994 then unless someone has done some serious modification then it is an OBD 1 unit. A pic of the plug that you are looking at would be a help.
to add to that gm has their own plugin system
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