[chuzz]

I THINK the BCM is behind the passenger side kick panel. If your cowl drains are clogged, the water from the cowl will run inside the fender and down to the connector on the BCM. I'd take a look at the cowl drains, clear them and pull the plug on the BCM and use some CRC Electrical Contact Cleaner on both the pins on the BCM and the connector. Then I'd plug and unplug it a half dozen times in order to help "sweep" the connection clean and retry it. This won't really take that much time and just might help with the door lock and light issues.

 

[chuzz]

Could a faulty torque converter lock-up switch cause this? I'm just trying to think outside the box.

 

[chuzz]

Do you have a vacuum gauge? If so, why don't you use it and see what it tells you? I have one, but haven't had to use it in many years because I try to stay on top of my vehicle maintenance. In the past, it has helped me out. It's an old one. Used to be my Dads and I know it's over 50 years old.