Is it returning at least the trouble code(*)? Is that what he means?
For a complete list of the codes for the 1997 Bonneville, go here
. Most of the 1995 codes should be similar if not the same.
I don't know why we don't have a listing for 1994-95 trouble codes, but I'm sure I'll be informed soon enough.
EDIT: OK, I did a bit of research for you. Here'* a link to the codes for a '95:
Note that this site linked shows a self diagnostic process that I was led to believe does not exist on our cars after '93, so use the code info only until or unless someone here better aquainted with the '95 speaks up.
Mike: 1997 SE w/ 183K, aka White Horse
, Gutted Airbox w/K&N, drilled 180* t-stat, tint all around, clear corners w/SilverStars, "PONTIAC" light up tail, PEMs, NGK TR55s