Another diagnostic idea for VanceC. Separate the steering column wiring connector where it plugs into the main harness. Insert a wire/spade? terminal into the space with the black wire on the harness connector. Touch the other end of inserted wire to ground to honk horn. This will tell you all wiring in main harness/horn relay is functioning properly since it eliminates everything in the column. This will also confirm the problem is in the column somewhere.
