Quote Originally Posted by Rico View Post
Like Bill said the ignition switch may be causing your problem. A bad ignition switch may also cause the scanner to PCM communication problem.

I wouldn't rule out the DRL module as well IMHO.
Thanks for all the tips. Time to get my hands dirty and see what comes up. This is absolutely great to have this feedback. Could have helped me a LOT a long time ago when I shelled out a crap-load of money to have OTHER people do the work that I could have done... :-)