Hi guys, I am going crazy trying to figure out what this is and what purpose does it serve? I have been going through the FSM and searching online. I am talking about the black canister with the hoses coming off it, not the light. I have a guess, but I would like someone to confirm it.

 

Vacuum tank for climate control & cruise control.

 

Thanks Nismo! I thought it was the vacuum tank. It is missing a hose, but I guess that isn't causing the problem I am having. Anyway, back to the drawing board.