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ive checked the fuses to the horn and they are good. whatto do next on 2004 BMW 745Li

the horns are hooked up

Asked by for the 2004 BMW 745Li
Check for power and ground at the horns when pushing horn switch. If no power then check for power and ground at relay.
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Check for power and ground at the horns when pushing horn switch. If no power then check for power and ground at relay.