Can anyone tell me [please] how to clear codes once I have replaced my neutral safety switch on my 1992 deville [4.9 litre] I want to find out if the new switch fixed the problem ?? thanks in advance :hmm:

Check out OBD I links on other messages on the forum for a link to not only the method to clear, but all of the code definitions themselves. A search at the top of this page will also get a link for you. Good luck!

http://myweb.accessus.net/~090/dtcobd1.html