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Re: 2003 grand am horn problems
Welcome to AF.
Do you have remote keyless entry and does the horn beep for the split second when lock is pressed on the keyfob?
Check for 12 volts at the fuse socket to make sure it is present from the ignition circuits and ignition switch. Next the low side of the horn relay should be checked for a ground when the horn is pressed. Next step would be to access the two horns located under the right fender well area/apron and bench test the horns or check for the 12 volts from the horn relay at the electrical connectors.
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