The horn on this 99 expedition does not work. I can honk the horn at the relay. I have also tested and tried a known good relay. I have tested the wiring at the relay. The only thing missing is the ground when you depress the horn button. I am sure the problem...

FIX posted 8/8/2007

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle