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Unread 01-13-2013, 07:57 PM   #1
sprucelk17
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Join Date: Jan 2013
Location: Traverse City, Michigan
Posts: 1
KC lights relays buzzing

I recently was driving down the road and turned on my 4 KC lights (2 long range, and 2 driving. All mounted on light bar. 2 seperate circuits, switchs, and relays) and noticed they didn't turn on! I also later noticed that one of the lights lenses was shattered (not sure if relevant). I knew that my battery terminals were very corroded and giving me trouble starting sometimes so I thought maybe they were too corroded to give the lights power (lights are wired directly to battery). I also have 2 more KC lights on the bumper that are also wired to the battery but work fine. So today I cleaned the battery terminals. When I put it all back together I went to turn on the 4 lights and both relays just buzzed! They probably did it before too when i was driving but I didn't hear it. What could be a reason for BOTH relays to be buzzing??

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Unread 01-14-2013, 03:59 PM   #2
Xpress
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1989 YJ Wrangler 
 
Join Date: Dec 2010
Location: The Great Big Box, California
Posts: 5,805
Perhaps the current is reversed inside, or water got inside, or perhaps the magnet has a short inside. All a relay is is an electromagnet, and they can fail from weathering. Have you tried to substitute another relay to double check?
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