So I am trying to revive a Mini which sat with a broken side window for a while - like a year or more. It was also parked for 5 years.

The car runs as a charm. The radio, the windows, the lighter socket - everything inside works just fine.

The lights are totally messed up: one or both hi beams are on when they should be off and the car is locked. Yesterday the low beams have worked but today they do not. At some point only one of the rear marker lights was on but later the other one has also turned on. Oh, and another thing - at some point the dom light was blinking when I open the door.

I suspect it's either the body control module, the headlights switch or just the sockets at the lights.

I guess I am leaning toward the BCM. Is the dom light controlled by the BCM? Could it be anything else?

 

I now know the answer.

Since it easy to get to the BCM I've decided to look at it. I have found the wire and the corner connection submerged in water - the soundproofing is such a perfect spangle :(

Anyway, this picture should say it all:



I guess they have chosen a less than perfect location for the BCM.

Anyway, that's an easy fix and I am glad I have found the problem!

 

Yikes! Glad you found the culprit

 

Wow! I guess one should be glad it didn't catch fire or something.

 

Gone are the days when switches independently & directly controlled their respective function. I would've preferred not having any of those BCMs.

 

Yikes....
Then again....lucky the inside of the car is not trashed after a year with a broken window....
Any mice nests in the cabin filter? Common in cars parked for just a couple months during the winter....never mind several years!
Congrats on finding the issue!