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the12volt's install bay
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 Topic: heated mirrors, what relay should i use?
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dan 2002 f250
Joined: December 05, 2011
Location:
Oregon,
United States
Posts: 1 |
| Posted: December 05, 2011 at 4:32 PM - IP Logged |
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I have a 2002 f250. im putting in heated mirrors from a 2005, i have run all the wires and have the drivers side working, powered by a toggle switch in the dash. I need to hook up the pass side and I believe i need a relay? A SPDT will work, but im not sure why I will have 87a, an unused wire, hot when the mirrors are not turned on. Any advice would be appreciated.
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Dan |
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howie ll
Joined: January 09, 2007
Location:
United Kingdom
Posts: 9,717 |
| Posted: December 05, 2011 at 6:21 PM - IP Logged |
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If you run your power source to 87 rather than 30, then 87a won't be live and even if it was it won't draw any juice if not connected.
Or use a 4 pin relay.
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Amateurs assume, don't test and have problems; pros test first.
Read the installation manual, do a search here for your vehicle wiring. |
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