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There is no separate horn wire, the only wires in the steering column are part of the T/S switch.
This is incorrect. The "horn wire" runs through the t/s switch but has nothing to do with any of the many functions of that switch.
The wire originates at the horn relay, goes through the t/s switch and ends at the brush in the steering wheel. It is hot at all times and operates the horn relay when grounded to the steering column by operation of the horn button.
The horn relay operates the horn. The horn button operates the relay. If the relay operates the horn, but the horn button doesn't, there is a lack of ground at either the brushes in the upper column or at the rag joint.
Eric.
That is a much better explanation than what I had!
Please see pics of my steering column and wheel, With the key "ON" only I have a dim power from the left black wire on the T/S and a bright flashing power light when the T/S in on. There is no other power from the Steering column ground and any other wire. I believe I have all the parts including the contact spring in the column and steering wheel. Any help is greatly appreciated. Thank You
Are you trying to fix only the horn? The brush might be in upside-down. When installed correctly it should be hot when the ignition is off.
I suggest you start at the horn relay - if that is working correctly, look for 12v at the connector at the bottom of the column. Next, test the horn power at the top of the column.
The most common reason you see a horn button screwed to the dash is a failed connection at the rag joint.
Thank you for your response, does the flat part of the contact go at the top or the bottom? should there be power somewhere if the horn is always hot? I tested the relay and the horn will work if I wire it directly to the horn itself??...yes I am just trying to get the horn to work so I can pass a safety inspection, YOUR HELP IS APPRECIATED
Yes, you should have 12V from the spring button to the steering shaft. The drawing appears to show the big side facing up, but the detail is not very good, so I can't be certain that is what was intended. One problem I keep having is the column doesn't want to stay in place. It keeps sliding down (apparently the spring is really stiff) and the gap between the steering wheel and column gets so large that the circuit doesn't close, so no horn. Make sure the gap is tight.
03-30-2021, 10:19 AM
