Hello, I'm new to the forum and I have a few questions.

I have a 2004 coupe that I purchase 7 years ago, and it's been sitting idle for the most part, but I would occasionally start is and let it run, I'm in the process of getting it ready to drive and have discovered a few electrical issues that surfaced within the past few months.

When I purchased the car everything, electrical, was working as it should, However, now the rear spoiler won't retract and the red light in the center of the manual spoiler switch is flashing, the door locks don't work with the key FOB or the interior lock/unlock switch ... I also have a BAS/ESP warning light in the instrument cluster, which I assume is brake related since the brake pedal is spongy.

I'm speculating all of the problems I'm having have a common theme, however any help or advice will be greatly appreciated!!

Many Thanks in advance,
Brian