no tail lights to trailer!

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  #1  
Old 05-26-14, 11:53 AM
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no tail lights to trailer!

replaced the plug in...now have a 7 and 4 plug in but still no park lights using either...thinking brown wire is the problem...seem to have 7 volts avail...
 
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Old 05-26-14, 12:05 PM
Tolyn Ironhand's Avatar
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Welcome to the forums!

You first need 12 volts. & volts sounds like you have a bad connection. On a flat 4 plug white is ground, Green and yellow are right and left turn/brake lights. Brown is your running lights.

Start with a analog meter and measure between white and brown for 12 volts DC with the tow vehicle lights on. (Trailer not connected) If you don't have 12 volts start looking for a blown fuse.
 
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Old 05-26-14, 12:12 PM
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If you have power, the #1 reason for trailer lights not to work is a bad ground.
 
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