Originally Posted by Iggy
Now that you tested every part I think you need to check a few things.
1. With ignition on and you press the steering when horn button does the horn relay active. This will pin point if the problem if between the steering wheel and the relay.
2. If you feel the relay pull in and out then you have to work on the power from the relay to the horns.
This is the way I would proceed to see which side of the circuit has failed.
The steering wheel horn button only controls the ground to the horn relay.
Then at the relay contacts close and gives you 12 volt DC positive to the horn wire.
The horn frame mount is the ground.
Thank you for the advice, I wound up taking it to the local Ford dealer.
$550 later, they fixed the two issues causing the problem:
- The horn button(They call it a cover)
- The contact plate in the steering column.