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Horn likes to honk when ever it likes.

(2001 Chrysler PT Cruiser)
in Ozark, MO on July 25, 2014
This is very embarrasing for my wife (her car). At stop lights and when someone is stopped in front of her. Horn BEEPS quickly. Sometimes will honk three times in succession. Sometimes we have a nonhonk day of driving!!! Other days about 15 honks just in the short times we drive it. Our car has 230,000 miles on it. W/O a lot of maintenance. We have replaced the timing belt upgrade at 110,000 miles, new belts then too, rebuilt the complete front suspension about 40,000 miles ago, complete valve job done 50,000 miles back. Couple of dash bulbs, taillite and headlite bulbs but that's it. It is my wife's baby and we are kind of committed to keeping it going if possible as we have her father in a care facility and the $$ for a new car just is not there.
thanks for any real help. I have also replaced the fan assembly twice for the radiator. And replaced the CPU a couple of months back from Orielly Auto but did not correct this situation. Also the relays.
Displaying 2 answers & 2 comments
Popular Answer
on July 26, 2014
Remove...or have the horn button (airbag pad) removed, most likely find the problem there. Possibly the pad itself. Can remove relay until fixed! ... Is it really easy to make the horn blow... Slight touch of the horn pad??... Have seen them get 'mushy' inside and give this problem! Also for a quick fix... Universal add on horn button is available! Then Just disconnect HORN ground at pad.... IF not equipped and 'Air Bag' savvy.... Have a mechanic do the work!!!!!
on July 26, 2014
IF that is the problem??? How do I remove the airbag? sensors or fuse to unhook first? I have removed a few from the wrecks that I have rebuilt but do not do it enough to know what to do first. I use to teach auto repair and body shop classes. I now own a small restoration shop. BUT!!!! I do not think that is the problem... though I will check this out.
The car honks more often if my wife unlocks the passenger door with her key. She usually has to unlock the driver's side door first. ... ???? I removed the passenger's door pannel to unhook the door lock switch for the door locking problem (another Question here on the blog) and the horn still will occasionaly honk when the passenger door is opened. Sometimes several times... honk-honk-honk! Again sometimes and it is short. BUT NOT ALWAYS!!! I cannot find any damaged wires in the door. Moved them around and no honk!
I have read other blogs where other people owning 2001 to 2004 PT's are haveing similar issues. Please NOTE: the horn only honks very briefly when it honks. Sometimes only once then at othr times in succession 3-4 honks... again each honk is brief! I have removed the horn fuse and it is not doing it at present. But I NEED to find the problem and FIX it.
I have been restoring cars and ex drag racer since 1961.
Taught vocational school and college classes in automotive, welding, fabrications, and Industrial Arts classes.
This new electronics especially this PT Cruiser problem has me stumped!!!
Others ARE having the SAME issues on other researched blogs!!!!!!!!!!
This will take someone familiar with this problem to answer it. I am even willing to pay for the CORRECT answer. I have taken the relay box apart as Dodge said there COULD be a short in it (maybe). They would not really get serious. Kept the car for 4 hours charged me $300.00. Did NOT fix it but told me they would need more time... another day. They did NOT work on it hardly at all in those 3 hours they charged me for. It just sat while they worked on OTHER cars! And so did I... just sat and watched... frustrated. I was watching thru the windows from the waiting area. I will never go back to a dealership again. This was a first for me as I usually do ALL of the repairs on her car. That is why it has the mileage on it as it does. 230,000+. This horn and door locking problem has been with us for 2 years now. Seldom happened then it has gotten more often within the last 5 months. So I pulled the fuse 2 months ago but do not want to leave it that way.
I have read on other blogs possibly may be a bad ground... broken wire??? Where to look or where do I run an ohmage test?
I cannot afford to have the high priced trouble shooting website (for shops) as it is around $180.00 per month. Every month!!! For at least two years they tell me. This is why I work on the older model cars 1904 thru 1970 now! The other new stuff drives me insane!!!
Help would be highly appreciated! If you are near Branson, Mo. or visit I'll buy you a nice evening meal if we can solve thei delima.
Joe in Mo.
on September 30, 2014
Try running an ohm test on the wiring to see if there is a short. As you know there should be no(unkook battery) resistance then trace the wires. Electrical work is a real pain and time consuming. Try adding a ground(jumper) to the existing ground wire for the horn, if that is the issue then it should stop honking.
on December 13, 2015
My 2008 PT cruiser has been stalling and my horn no longer works but will honk on its on every once in while. I've been told it could electrical problem will cost me a fortune. Can you tell me what could be wrong with my car?
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