Im not sure if this is the problem but I had a shop that needed a parking brake switch the other day for the same type of car and same problem, it took me a while to find the part number. finally found the number in some old catalogs I had its 2018202110 I sent it to him and he left me alone finally. In the picture it looks like its located behind the dash close to the release lever. I have a copy of the page in the film if needed let me know. Also its availble in the Fastlane Catalog http://www.peachparts.com/catalog