My 2007 LX will not lock with the key, and courtsey lights won't come on when door is opened and the vehicle indicator light for tires and doors stays lit at all times.

I discovered the problem by accident; after chasing shorts in wiring for some time. The problem was that the rear and middle courtesy lights (there are 2 lights in each section) in the headliner were not in sync. One turned on and one turned off. I turned them both on and the problem was solved. Worked with both off. Honda service manager had no idea how to solve problem.. .when told answer said there were lots of things they didn't know about with new cars.