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1999 C5 Coupe. Ok. Before ya'll start flaming me, I did a thorough search using the function available to us all on this site. I can't find this issue. I had my horn stick ON. I pulled #7 from the engine bay to stop it. Replaced the membrane with a C&S unit. My thanks to them. Replaced horn relay and fuse. Now the car clicks somewhere in the front near the fuse box (engine bay) but the horns don't work. The horns worked great until they went bonkers and wouldn't quit.
The funny thing was that a guy had given me a thumbs up on the car and I wanted to acknowledge his thumbs up with a little toot toot on the horn. It stuck wide open!
I went in the wheel and made sure all was good. It is. I still have nothing but clicking under the hood. Any ideas? The horn stuck ON. I pulled #7 and disabled it. Now with the new horn membrane I still get a clicking.
Tried a new relay and fuse. Same. I've heard you might blow up the relay so I switched it out with another in the fuse block. Same results.
Confused !!…your first post said your horns don’t work but in your last post you said it’s stuck on…so what is the deal with the horn ??… you removed the fuse but still get a clicking under the hood ??…do you own a DVOM and a 12 volt test light ??…OE and redrawn wiring diagrams below…can you interpret this wiring diagram ??
Confused !!…your first post said your horns don’t work but in your last post you said it’s stuck on…so what is the deal with the horn ??… you removed the fuse but still get a clicking under the hood ??…do you own a DVOM and a 12 volt test light ??…OE and redrawn wiring diagrams below…can you interpret this wiring diagram ??
Sorry man. I was reiterating what was stated in the first post to make things clear. Thanks for the diagram. Appreciate it. I am no good with electrical. I have no idea what I need to test, etc. But thanks for helping.
Sorry man. I was reiterating what was stated in the first post to make things clear. Thanks for the diagram. Appreciate it. I am no good with electrical. I have no idea what I need to test, etc. But thanks for helping.
So is the horn stuck on now ??…if you don’t have the tooling or not willing to diagnose this find yourself an auto electric shop in your area…if you changed the horn membrane and your issue started after that it may be a bad membrane…it like you are pressing on the membrane constantly !!
No, I explained it incorrectly. The horn stuck ON. I pulled the fuse. I replaced the horn membrane. I have switched out the relay with two others to test it. The fuse has been swapped too. I get a click when the horn is pushed and another click when I stop pressing it. So, click click. Click click. The horn isn't stuck ON anymore.
OK, got ya !!…horn NOT stuck ON but now just clicks from somewhere under the hood…if you hit the “panic” button on the key FOB does the horn sound ??…the clicking is most likely the load side of the relay energizing or maybe the horns not working…so my recommendation to you is to remove mini fuse 11 and with a 12 volt test light connected to battery positive touch the tip of the test light to each one of the fuse terminals…one of the 2 go to the horns so we are directly powering the horn with the test light…this is terminal A of the fuse…if you don’t have a test light a length of wire going from battery positive to terminal A would work !!…if the circuit is good from the fuse to the horn the horns should work !!
OK, got ya !!…horn NOT stuck ON but now just clicks from somewhere under the hood…if you hit the “panic” button on the key FOB does the horn sound ??…the clicking is most likely the load side of the relay energizing or maybe the horns not working…so my recommendation to you is to remove mini fuse 11 and with a 12 volt test light connected to battery positive touch the tip of the test light to each one of the fuse terminals…one of the 2 go to the horns so we are directly powering the horn with the test light…this is terminal A of the fuse…if you don’t have a test light a length of wire going from battery positive to terminal A would work !!…if the circuit is good from the fuse to the horn the horns should work !!
Gotcha. Just had to fix a caliper problem that cropped up on another car we're using. Great ride. 2006 Mercury Minivan with 60k on it. Things are going bad slowly. Just like the Vette.
You should write an electrical book for dummies. I'll be back!
I did what you said to do. I have power to the right side of the fuse as you look at it from the front of the car. The horn is clicking. It's not the relay clicking. The horns ran for over/under 5 minutes while I was trying to disable them. Do you think I may have fried them? That's all I can think of. I'll bet they were hot when they shut down. My number is 815 582 8872. My name is Jim. Give me a call if you have time. It's a lot easier than going this route. Thanks again.
Doing the actuator doors this week. Going to disassemble the dash tonight. I'll bet under an hour to get it apart. Then the fun starts.
I’m not sure you’re understanding….ok, do this…remove the fuse…connect test light to a good ground…if the relay is NOT energized as it should be the test light will not light probing either of the 2 fuse terminals…if it does light the relay is energized and the horn should sound if you reinstall the fuse…if the light illuminates in either of the 2 fuse terminals pull the relay and if the test light goes out the relay indeed was “stuck” on…you have another issue then..,it would be easiest for you to remove the horn and with 2 jumper wires feed it power and ground from the battery to see if it works !!
I’m not sure you’re understanding….ok, do this…remove the fuse…connect test light to a good ground…if the relay is NOT energized as it should be the test light will not light probing either of the 2 fuse terminals…if it does light the relay is energized and the horn should sound if you reinstall the fuse…if the light illuminates in either of the 2 fuse terminals pull the relay and if the test light goes out the relay indeed was “stuck” on…you have another issue then..,it would be easiest for you to remove the horn and with 2 jumper wires feed it power and ground from the battery to see if it works !!
That's another way to check it and I will try it. I was thinking of running a hot wire right to the horn to kind of start my diagnosis there. The problem is, it's cold and I don't want to do this in the cold. It's 50 in my garage but that creeps into your bones after about 3 hours.
I'll be back! When? God knows. But I am going to try this method tonight.
When you say, "If it does light the relay is energized and the horn should sound if you reinstall the fuse." I think everything is working correctly right now except for the fact the horn may be burnt up. I'm getting a clicking from the horn, not the relay or fuseblock.
The right side of the fuse is making sparks and triggering the clicking sound at the horn when I put a hot wire from the battery to the fuse. That tells me the relay is ok. What say you?
That's another way to check it and I will try it. I was thinking of running a hot wire right to the horn to kind of start my diagnosis there. The problem is, it's cold and I don't want to do this in the cold. It's 50 in my garage but that creeps into your bones after about 3 hours.
I'll be back! When? God knows. But I am going to try this method tonight.
When you say, "If it does light the relay is energized and the horn should sound if you reinstall the fuse." I think everything is working correctly right now except for the fact the horn may be burnt up. I'm getting a clicking from the horn, not the relay or fuseblock.
The right side of the fuse is making sparks and triggering the clicking sound at the horn when I put a hot wire from the battery to the fuse. That tells me the relay is ok. What say you?
I need an extra horn. Right now!
50 ??…it’s 80 here !!…Yes, just hotwire the horn with a power and ground !!…there is a small access panel inboard of the passenger front tire and you’ll find the horn there…remove the connector and bolt and pull it out !!…one terminal of that fuse goes to the horn and that is the one we are trying to give power to and make the horn sound…if the relay is NOT “stuck closed” (I think yours IS) the fuse should not spark when you install it !!…the horn membrane may be bad !!…if the relay is stuck closed a test light will light on one of the 2 terminals of the fuse when it’s removed with a test light connected to a good ground.
50 ??…it’s 80 here !!…Yes, just hotwire the horn with a power and ground !!…there is a small access panel inboard of the passenger front tire and you’ll find the horn there…remove the connector and bolt and pull it out !!…one terminal of that fuse goes to the horn and that is the one we are trying to give power to and make the horn sound…if the relay is NOT “stuck closed” (I think yours IS) the fuse should not spark when you install it !!…the horn membrane may be bad !!…if the relay is stuck closed a test light will light on one of the 2 terminals of the fuse when it’s removed with a test light connected to a good ground.
I changed the horn membrane as I thought it was the cause of the horn sticking. I'm getting two relays in the mail tomorrow. I've heard tell you can blow these out when the horn gets funky. Like Parliment Funkadelic. The whole deal is checking the horn at this point IMO. I just pulled the dash to do the actuators. I will wait until tomorrow to mess with the horn but that's going to be the first thing I tackle. The actuators can wait. I really want to see if it's fixed or I have to figure it out. Like an itch you can't scratch. Overnight anyway. Thanks for your help but please don't stop commenting and helping. I'm just saying, "Thanks!"
Hey! I have a piece of a business in Cape Coral. It's on Cape Coral Pkwy W. 1217 to be exact. It's a Day Care Center. I know that area. I had a place in Lucaya which is on McGregor near Gladiolous. In laws were on the beach in Ocean Harbor. Way too pricey for me. 1 mill and up. My Bro-in-Law is down there right now.
Been going to FT Meyers for 40 years. I heard Doc's was gone at the end of the beach toward Bonita. Shame. He was a nice guy with a good business.
Horn Not Working
