Why Would Trailer Interior Lights Not Work with Breakaway System Installed

Question

Question:

The Interior cargo lights do not work when the Hopkins breakaway battery charger is wired into the trailer. The breakaway charger is new and the battery is fully charged. When I bypass the breakaway charger, the interior cargo lights work. The trailer breakaway tested good.

asked by: George

0

Expert Reply:

Sounds like you have the 12 volt power circuit of your trailer either running to only your breakaway battery or only the trailer lights. Most likely the issue is the connection that you are making from the battery to the 12 volt system. Make sure that the connection is solid and allows both circuits to be active.

expert reply by: Jameson C

0

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Answer 1

Yes, you will want to use a single function diode, like part #RM-690. You will need to wire it in between the breakaway battery and the trailer battery to stop the backfeeding from the battery to the breakaway system.

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Answer 2

There is a possibility of back feeding but this should not really be of a concern as the odds of it happening are slim to none. If you did choose to use a diode then you would need one rated for the components it would be powering. The highest rated…

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Answer 3

Diodes like the part #RM-790 only allow current to flow in one direction. Usually a diode is a small cylindrical shaped component (not in this case) which has two leads on it, the anode and the cathode. When the anode side of the diode is facing…

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Answer 4

If the two power sources are going to be on the same, input side of the diode then the current would flow through it without an issue. If you put power on both sides of the input side of the #RM-790 the current on the output side of the diode would…

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Answer 5

If you wanted to wire the 6" Oscillating Fan 12-Volt #PTW1658 to your trailers wiring you'd need to run it to the 12 volt accessory circuit as this circuit is designed for powering accessories like this or interior lights. I recommend the…

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Answer 6

The Tekonsha Shur-Set III Trailer Breakaway Kit with Built-In Battery Charger #2028 will absolutely work with two Dexter 12k Axles with electric over hydraulic disc brakes. The EOH brake actuator is the key to the braking, so the 12V battery will…

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Answer 7

If you sever the blue wire leaving the P3 controller part #90195 leaving enough room to reconnect it and test the end of the wire leaving the controller with a circuit tester like part #PTW2993 you should see voltage when you slide the manual…

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Answer 8

The interior lights of your trailer would be powered by the 12 volt accessory circuit on the 7-way of your 2010 GMC Sierra. You will want to check the 1:00 position of the 7-way on your truck with a circuit tester like part #PTW2993 to verify if…

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Answer 9

The exterior lights on your trailer - stop, turn and tail - and the interior lights will usually be fed by different power sources. On an RV-style 7-way the stop/turn light signals are carried on the pins at the 3-o-clock and 9-o-clock positions and…

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Answer 10

The ball extension part #BWGNXA4085 actually gives more clearance than a gooseneck coupler extension. Reason being that with the ball extension you move the pivot point back but with the coupler extension the offset's additional clearance…

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Answer 11

The closest sized radial tire we carry to your 7.50R16C tire is a 235/85R16 like the Provider #TTWPRG235R16. The overall diameter of 31.73 inches is very similar to the 31.8 inches your current tires roughly are. The problem you may run into is your…

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Answer 12

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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