My horn in my 1998 Malibu kept blowing. I took the relay out to shut the horn off. I had a diagnostic check done because this is the second time this has happened. The first time, a new relay worked. This time, replacing the relay did not solve the problem. Turns out that the horn button located within the steering wheel is stuck. Unfortunately, this is part of the air bag mechanism and will be quite costly to replace.
I am attempting to find directions to bypass the horn with a Horn Button and Wiring kit so I have a working horn to pass inspection.
The horn button or relay could be stuck. The most common cause is the relay sticking closed, as opposed to the button.
Faulty horn switch, faulty horn relay, or a short to power somewhere in the wiring. Power should be constant at the 30 pole of the relay, and should only be present at the 86 pole when the horn switch is depressed.
Most likely a short between the horn relay and the horn switch in the steering wheel.
The easiest two ways are to either remove the fuse, or remove the relay. If the horn is stuck blowing then the relay is probably bad.
could be horn relay in underhood fuse box. or bad horn..
The most common problem for a stuck horn is actually a stuck horn relay. Remove the relay and the horn should stop blowing. the relay may be hot from being stuck. replacing the relay should fix the problem.
The horn relay may be faulty. Try replacing that.
Typically, that problem would only be caused by a faulty horn relay or a damaged horn contact switch inside the steering column. A frayed wire that rubs on a metal part of the vehicle. Since the relay is the easiest part to test, remove the relay and replace it with a similar relay FOR TEST PURPOSES ONLY. If the horn works properly with a replacement relay, put the relay you used for testing back and purchase a new horn relay. If the test relay left the horn ON, you probably have a damaged horn contact switch, in which you will need to replace the faulty component.
The wire to the relay grounded somewhere. Take it to a garage to get it checked out.
bad ground or wiring, bad switch/button, bad horn, bad horn relay, fuse.
There are sever possibilities to the horn not blowing consistently. The horn relay or horn button are the most common followed by a loose wiring connection or a defective horn.
A short circuit somewhere.