I just thought I'd post a simple method to defeat the shift lock system which causes such a headache when the microswitch fails. In my case the solenoid was working but the microswitch did not - so I could fire the solenoid by bridging the microswitch with a piece of wire. I noticed that when the solenoid engaged (to permit shifting) there appeared on the left side of the solenoid plunger a tiny gap. At my workbench I hammered a piece a wire to form a flat surface on one end of the wire (like a feeler guage) and then I inserted my wire into the gap, thereby preventing the solenoid from returning to a position which had caused the shifter the lock. If I had it to do over I would have used a steel wire so that if it were ever to slip out I could easily retrieve it with a magnet. But I have been driving for weeks and I think the wire will remain in there forever unless I extract it intentionally.