Hi guys, I'm new to this forum so apologies if I'm posting in the wrong place. I have a Buick Park Avenue 3.8 litre (chassis # 1G40W53LXN1664561). There is a partial electrical failure somewhere. The car will not start at all. When I turn the ignition on, all the dashboard lights come on fine, but the car will not turn over. The air conditioning stopped working first. Interior lights started to come on on their own. The engine turned over initially but the problem has gotten progressively worse and I'm now left with a dead car. The battery is fully charged and is working fine. I suspect the immobiliser or the engine management system (or both) has been fried. Can anybody help me? Bill.
