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Trailer light wiring.

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=143753
Printed Date: May 12, 2025 at 1:54 PM


Topic: Trailer light wiring.

Posted By: austinjasonxxx
Subject: Trailer light wiring.
Date Posted: November 09, 2017 at 1:16 PM

I used the wire in a seven pole trailer plug that normally controls the running lights to power after market hazard lights on the trailer. There’s a separate toggle switch for the hazard lights and the running lights. When you turn on the running lights the hazard lights come on.

Is it possible to wire a relay so that when the running lights are on the hazards or not but could be if the hazard lights switch was switched on but normally the hazards would be off.


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