The first time this happened was 6am after disconnecting battery red terminal it stopped but we smelled something electrical burning. We took it to dealer after removing the relay until we got there and they put it back in and said it was the horn pad within the steering wheel and there are no replacements available. I don't believe that. I think there is a short between relay and horn.
What would make a horn blow ea time the engine is turned off for about 12 hrs. on 1997 Cadillac DeVille
by Soprano1 in Cocoa, FL on September 05, 2013
ANSWER by brinkline on September 07, 2013
Good morning, We would love to look at it for you. We are a Repair Pal "Top Shop". Check it our profile here on repair pal. Give us a call Monday and we'll serry an appointment for you. Thanks and have a great day, Brin Assured Auto Works 321 610 7977