[Elli]

My ESC light has been going off on its own and today my check engine light came on with the code P0504. Definition :1. A/B brake switch correlation 2. Open/short circuit or 3. Poor electrical Connection 4. brake switch is faulty.

I have no clue where this part is on my car or how to replace it. If anyone could give me some pointers or a site that would lead me through the process I would be very grateful. We are having a lot of bad weather out here and I need my car working. Thanks in advance.