This weekend my jacks failed to go down and I noticed that the not in park/brake light was on? Does anyone know where the switch is located? This is a diesel chassis. Any help would be appreciated thanks!

on front fiewall ,outside on mine.should be on park valve near treadle valve

thanks for the reply rusty! did you have the same problem and did you have to change it?and is it possible for you to send me a picture?

i didnt have a problem i just know where the valve is on mine,i also know it has to see brake set to work .it could easily be a loose ground somewhere,on mine grounds are white.i will try for pic but haven't felt good lately.

update,i found it,under the motorhome and there was a bunch of rust on it!i cleaned it off and it works fine now thanks again rusty!