Might be related to the alarm,which also starts without reason but stops introducing the code for door opening.
This is causes by the airbag cover being warped and it common.
SOURCE: horn starts blowing randomly
do you have a alarm on it. If so you need to disable it or turn it off. Other wise you have a short somewhere in your horn. disconnect the horn under the hood. Its usually upfront and looks llike a flat black circular device that has one wire going to it, unless you have a alarm then it may have more.
tepfy
SOURCE: error code p 1633 on 2000 lincoln ls
P1633 Keep Alive Power Voltage Too Low (Ford) It means that at sometime in the past the battery voltage was below specs at the PCM and set the code.The battery provides 12 volts to power everything,the car probably sat for a while and probably took a long time to start or had to be jumped off to start.... when the voltage got below 9 volts it set the code. The code is more of a indicator for us more than anything.. the computer learns as you drive and all the code is saying is that it lost it's power to itself and can loose that learned information. Have a shop inspect the battery for being weak or dying as well as your battery connections.. if all is fine, I wouldn't worry as my guess is the car's code was set cause it sat unused for a while
SOURCE: When car sits for 3-4 days, battery goes down.
You either have a battery that is giving out on you or something is draining the battery when it stands for a while. Have the battery tested first . If that checks out ok then you will have to check for the electrical leakage in your system.
SOURCE: horn went off middle of night.had to disconect
Hello
This car has a factory security system so don't know why you have installed a 2nd one, the factory system will honk the horns when activated but that is very rare, but you should have had a warning light flashing in the dash if it was the cause of the horn honking at night. It is much more likely on this car that the steering wheel Airbag module plastic outer covering is distorted from the heat, and when it cooled at night it caused the horn contacts just under the cover to touch, I've seen this many times in my 20 years at the Ford dealer, the only fix is to replace the steering wheel Airbag.
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How can I check the contacts in the steering wheel,how do I open it ?
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