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Old 06-30-2021, 01:50 PM   #1
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Hi Matt,

We are new camping and have purchased a 31' Cherokee 274 VFK trailer. We will be going out for the first time later in July and are very excited. This was a used 2020 and purchased in FL where it is sold 'as is'. Once we got home we realized that the brake/tail lights were not working. We have checked fuses on the truck, bulbs are good, cleaned the 7-prong connection on both trailer & truck and check the ground wire and everything checks out. If anyone else has a suggestion as to what we might try we would appreciative. To get anyone to look at it is 3-4 weeks out. Thanks for any suggestions. Can't wait to get out on the road.

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Old 07-01-2021, 07:54 AM   #2
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Welcome to the forum its a great place to get your questions answered. I would start by pulling the tail lights and checking the ground and power connections and go from there. there is hours and hours of reading in the library about electrical/lighting problems. I would recommend you do some driveway camping before your trip to ensure all things work.
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Old 07-01-2021, 08:30 AM   #3
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Find a nice moving blanket to sit on. One alligator clip set for the ground of the meter. Gives you two hands to work with. Plug disconnected.

Make a copy of the 7 pin plug that identifies the terminals and what they connect to.

Sit behind the plug and verify that there is power to the plug on each circuit. I generally turn the emergency blinker on the tv. And headlights.

Answers the question, tv or rv?

If the tv is good then convert the meter to resistance and test each rv circuit. Still sitting on the blanket.
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Old 07-02-2021, 08:22 PM   #4
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Welcome to the forum. Later RJD
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Old 07-02-2021, 08:36 PM   #5
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Give us some details on your TV if the suggestions above don't produce results.
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Old 07-04-2021, 12:38 PM   #6
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We have solved our brake/tail light electrical problem. The ground wire in the actual light was missing so once the ground wire was connected we were in business. Off on our first camping trip July 25 to the UP of Michigan & heading West. Thanks to those who offered suggestions.

Joan Bradley
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