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Old 10-25-2015, 06:01 PM   #1
Join Date: Oct 2013
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Blinkers not working

We noticed this morning when leaving from Ocean Lakes we had no lights on the TT. When I got home, I looked it over and I guess I did not have the 7 pin plug in correctly. I secured the plug and now have tail lights. Unfortunately, I do not have blinkers or hazard lights. I check the harness at the bumper of the TV and a signal is going to the harness. What can I check to determine the issue?

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Old 10-25-2015, 06:06 PM   #2
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Are you getting a good connection at the 7 pin connector? could be a bent pin/prong on one side of the connector.


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Old 10-25-2015, 06:10 PM   #3
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You might have some corrosion on the contacts. Try using a small file or some sandpaper to clean them up, both on TV receptacle & TT plug, then check again.
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Old 10-25-2015, 07:08 PM   #4
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A healthy dose of electrical contact cleaner will help. I always start at the vehicle connection and work my way back. The connection on the tv takes much more abuse then the trailer. With problems in multiple lights, frequently the problem is in the ground wire.
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Old 10-26-2015, 06:57 AM   #5
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And take a look at the bulbs themselves to make sure the signal/hazard filament is still intact. Or you can have a helper step on the brake pedal while you're at the back. I'll bet they don't work, either.
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Old 10-26-2015, 07:05 AM   #6
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Don't know make or model of your TV, but a check of the fuses might be in order as well. Marker lights went out on our WhiteHawk once, everything else worked. No apparent problem with trailer or 7 pin connector on TV. Checked the fuses on the TV (Ram 3500), and Shazaam! Weird circuit scheme to be sure, but a new fuse fixed the problem.
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Old 10-26-2015, 07:09 AM   #7
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Check your fuses under the hood. I blow one, and lost turn signals to the trailer, the TV signals worked just fine. Seams unlikely as it is both turn signals and brakes, but worth checking.

If you have a volt meter, you can check for signal power at the connector on the TV.

If you have power to the 7 pin connector, check the wire nuts at the end of the 7 pin cable. I have heard of them being nuts being loose, and corrosion.
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Old 10-26-2015, 08:19 PM   #8
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Thanks everyone. I see I have more to check this coming weekend. I am thinking it is the plug itself. I was looking at it and it looks like one of the prongs is bent.

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