Looking for some advise to confirm I am heading down the proper path. I would hate to miss something simple and easy just because I was too hard headed to put this question out there for help.

My C3 is a 1976 model with tilt and telescoping wheel. The horn hasn't worked since I got the car. I found a cut wire in the wire harness near the driver hood hinge area (white wire with green stripe). I repaired the wire, but the horn still does not work. Next, I plan to check for a horn fuse on the fuseblock. So, I broke out my AIM pages and ran across the steering wheel exploded view (1976 is a unique year for steering wheel assembly). On this page, the telescoping lock ring has a special note that says "Both sides of Hub part of lever must be free from paint".

Does anybody know if this would cause the horn not to function? (may be necessary for grounding...)

The reason I ask is that I repainted this ring a couple of weeks ago. I was replacing my carpet and repainted the parking brake console and seat backs.....the paint on the telescoping ring looked a bit faded....so I painted it too.

Do I have to take this ring out and sand off the paint on the interior surfaces?

Just curious. Thanks for the advise.

 

First thing I would try is to ground the black horn wire going up the column to the switch at the harmonica connector.Its in positon G.Its a black wire between a pink and a double light blue.If the horn blows after grounding your prob is probably in the column.

 

Thank you for the suggestion. Should I check for a horn fuse?

 

shure check all your fuses .and your horn relay [above fuse box ]on my 82 the horn wire under the hood is green.

 

This is how I would troubleshoot the horns.
Connect 12v to the green wire that attaches to the horn. If it doesn't blow, you either have a bad horn or bad ground.
If the horn does blow, find the horn relay hanging just above the fuse box. Short the black wire to ground. If the horn blows, the relay, wiring horns and grounds are all good and the problem is in the steering column. If it does not, short the red (may be orange) and green wires coming from the relay together. If the horn now blows, the relay is bad. The black wire goes into the column and is grounded through the contacts and springs in the wheel.

If you don't have the 12v on the red wire on the relay, it will never blow. Bear in mind that you may have more than one problem. The relay may be bad, the horns dead, and the horn contacts not working. Eliminate one step at a time.

 

when i fixed my horn ,the horn ring was bad and the connections at the horn were corroded.

 

I'm pretty sure you dont have a horn fuse.

 

The 12v to the horn relay is fused. It's hot all the time. Measure there and if you have 12v the fuse is good.

 

The 76 has a fuse in the fuse box for the horn?

 

No, it's a fusible link that also feeds the lights and several other things. The red wire on the horn relay should be hot all the time. Short the red to the green on the relay, if the horn blows, the wiring, horns and grounds are good. Ground the black wire on the relay, if the horn blows, the relay is good. If grounding the black wire blows the horn, the problem is in the steering column. I used the term "fuse" loosely. There is not a fuse in the fuse box for the horn. On my 78, the horns were frozen up, the relay was bad, and the horn contact button was missing. Total to replace everything was around $30 bucks.

 

Problem solved.
I grounded the black wire at the harmonica connector and the horn worked. I opened up the steering wheel column to find the horn contact assembled incorrectly.

Thanks again to everyone for the help.