jhowland

found out I have no brake lights, both are out. Fuse is good, and I put in a brand new relay. Still no joy. I also noted that stepping on the brake does NOT deactivate cruise control. I was troubleshooting more today and when I stepped on brake the lights came on, as they should. But only once. I suspect one or both of the switches on the air brake need to be replaced. Looks like a very simple fix but does anyone have part numbers or another idea? Thanks 04 40DST diplomat le