Murano horn fuse blowing

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  #1  
Old 12-31-15, 02:14 AM
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Murano horn fuse blowing

Friend has a 2010 Murrano. About 6 months ago, had front end of car replaced, such as grill, radiator. Couple months later, horn fuse starts blowing.

Today, we looked at the horns. I am thinking they were miswired, because one horn has black wire attached to ground, and the other horn has green wire attached to ground. I reversed so that both horns have black wires on ground connection. Fuses are no longer blowing and all seems good.

First of all, am I correct that they were miswired, or is it normal to have the two horns wired opposite polarity of each other (one horn had green on top, black on bottom, other horn black on top, green on bottom)?

Also, I had both horns completely disconnected from the circuit, but still mounted in the car, and there is continuity between both connection terminals on both horns, and thus all terminals were also connected to ground. Is that normal?*
 
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  #2  
Old 12-31-15, 04:41 AM
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The way I remember it, when you sound the horn, you are completing the ground as opposed to sending juice to it.. So I believe that it is normal.
 
  #3  
Old 12-31-15, 05:01 AM
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All 4 horn terminals from my dual horns were grounded to chassis even when not pressing horn. So you are saying that's normal?
 
  #4  
Old 12-31-15, 05:14 AM
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IIRC, there is a horn relay & the horns have to be connected to it, one way or another. It could be through the chassis. Things have changed since I was a mechanic so I can't be 100% sure.
 
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