Those switches are known to fail. The material they are made of dozens grades over time. They are easy to check on 04/05 with an ohm meter to check the are working. On 06/09 the have a cover over them that hides them and makes it much harder to change. I bought the last new ones and all were bad. They has dozens grades in the box on the shelf. I have a much better replacement that will last the life of the car if anyone needs this switch. No were near the 399.00 they sell for on ebay. [email protected].