I had a blow out on the left front tire, It ripped out the horn, Now my tire sensor fault light stays on. Ford told me, the horn is linked to the tire sensor circuit, and that, when i replace the horn, everything should work fine, and the light would go out. They wanted $400.00 to replace the horn, and repair the wiring, I opt'd to do the repair myself. Is this true about the horn affecting the tire monitoring system, and making the fault light stay on? Thanks.