starbiscuit
Well-known member
Sorted my horn wiring.
Hot side of horn was good. Ground-side wire was flapping loose near the steering box. Horn worked when it was grounded.
Started here with the brown wire that should be earth, but wasn't
Replaced the wire that runs up the steering column rod from the ground connection on the steering box flange. Found that the rubber coupling was conducting :shock: Probably metal reinforced inside, resulting in the steering column rod and tube being grounded through the steering box. Disconnected the steering coupling - steering column not grounded.
Replaced the coupling. New split pins. This is the bottom of the wire that runs up the column.
Wire brushed and painted the steering coupler cover. Checked the insulator is good (cover is grounded on the floor, steering column is ground-side of the horn).
Replaced the wire before fitting because it's much easier to attach to the horn under the bus than it is to attach to the steering column under the bus.
Now the steering wheel button operates the horn
Cheers,
Rob
Hot side of horn was good. Ground-side wire was flapping loose near the steering box. Horn worked when it was grounded.
Started here with the brown wire that should be earth, but wasn't
Replaced the wire that runs up the steering column rod from the ground connection on the steering box flange. Found that the rubber coupling was conducting :shock: Probably metal reinforced inside, resulting in the steering column rod and tube being grounded through the steering box. Disconnected the steering coupling - steering column not grounded.
Replaced the coupling. New split pins. This is the bottom of the wire that runs up the column.
Wire brushed and painted the steering coupler cover. Checked the insulator is good (cover is grounded on the floor, steering column is ground-side of the horn).
Replaced the wire before fitting because it's much easier to attach to the horn under the bus than it is to attach to the steering column under the bus.
Now the steering wheel button operates the horn
Cheers,
Rob