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Randall C
Randall C, ASE Certified Technician
Category: Car
Satisfied Customers: 12719
Experience:  32 years Foreign / Domestic Cars All aspects of Diag and Repair
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Blow..I had to disable the horn by disconnecting it

Resolved Question:

Why does my Land Rover Discovery2 horn blow by itself. Last night and the night before it was around 4 am. I had to disable the horn by disconnecting it.
Submitted: 4 years ago.
Category: Car
Expert:  Randall C replied 4 years ago.
Hello, I am Randall. I have reviewed your question and working on it now.

are you in the mitst of temp changes where you are are: like now getting real cold at night etc?
Customer: replied 4 years ago.
yes it has got colder at night. This has happed a year ago only it was a little warmer and slightly chilly night 50's. Now its down to 30's at night here in memphis
Expert:  Randall C replied 4 years ago.
Thanks. Cold here in DE as well :( let me gather some info. Back shortly
Customer: replied 4 years ago.
Expert:  Randall C replied 4 years ago.
This is not an uncommon scenario on various brands when temps change etc.. Most likely you have a bad horn switch and as tems change,, the contatc become closer and stes horn off. cant rul out drivers side airbag which makes this a little tricky to diagnose but maybe on cold evening, hist the horn and see if it feels real sensitive on one side or the other. i suspect bad horns switch.You can clisk HERE for switch info and HERE for airbag info
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