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Trailer turn signals

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Old May 30, 2012 | 07:00 AM
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Trailer turn signals

Last night I noticed that I have neither turn signal working on my car trailer. The trailer works fine when connected to my Yukon. So I checked the 7-blade plug-in on the truck and found no power to either post for turn signals. I thought maybe there is corrosion on the wire connections inside the plug, so I probed the wires ahead of the plug-in and still nothing. All other lights appear to be working fine....I still need to check the brake lights to make sure. Lights are bright, so I wouldn't think it would be a ground. I am leaning more toward a relay or fuse that may be bad. Are there just the two relays under the hood for the trailer turn signals? If so, how do I check these relays?
 
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Old May 30, 2012 | 04:56 PM
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From: St Louis
Ya know, you HAVE to identify what you're working on in your post....
 
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Old May 30, 2012 | 07:01 PM
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Oops sorry about that. I have a '08 f350 CC SB 4x4 with a 6.4L diesel.
 
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Old May 30, 2012 | 09:43 PM
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Found the problem! Had a little more time tonight to work on it and found that the #19 fuse under hood was burnt. Replaced and all IA good again!
 
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