Best Way to Add 7-Way Connector on 2009 Toyota FJ Cruiser for 12V Power to Trailer

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Question:

What the best way to add a 7pin connection to my 2009 Toyota FJ. Currently there is no trailer connection. Im only needing the 7pin in order to charge batteries on my tear trailer, no electrical brakes. I was thinking of installing the 4 pin flat wiring package to the back tail lights and running a charge wire from the battery and converting the wires over to a 7-pin. Not sure if this is a good idea. Thanks.

asked by: Scott W

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Expert Reply:

The best solution for your application is to install the Tekonsha T-One # 118405 on your 2009 Toyota FJ Cruiser for your standard trailer lights and then add the Wiring Kit # ETBC7L which comes with everything you need to convert the 4-Way to a 4-Way/7-Way and add the 12V function.

Please note that as power runs along that line there will be some voltage drop which will likely keep your batteries from charging completely. To help remedy this I recommend using the Redarc In-Vehicle BCDC Battery Charger 25 Amp # 331-BCDC1225D or 40 Amp # 331-BCDC1240D because they have smart technology that reads what kind of batteries are charging and boosts the power output to match them. The BCDC also has an integrated solenoid to keep your batteries from pulling power when your FJ Cruiser is turned off. You can also add solar panels to them in the future which makes for a perfect combination to go dry camping or boondocking.

I have attached some videos that you can check out.

expert reply by: Jon G

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Answer 1

So it sounds like you are possibly trying to wire in a second 7-way to your 2014 Toyota FJ Cruiser. Which if that is the case the part #41157 would be what you would need. Or if you are just trying to install a 7-way in general on a vehicle that does…

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Answer 2

The #30717 is exactly what you're looking for as long as you don't need the 7-way to supply anything other than lights on the trailer. You just plug the 4-ways together, connect the white ground wire to the vehicle's frame using the…

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Answer 3

Based on my research, it looks like the total weight of your 2010 LD Casita Trailer is between 2,200 and 2,500 pounds, depending on the specific model that you have. When looking at the online owner's manual for the 2007 Toyota FJ Cruiser, it…

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Answer 4

There are a few differences between the Universal Installation Kit part #ETBC7 and the 7-Way RV Upgrade Kit part #ETBC7L. The biggest one is that part #ETBC7 comes with both the power and brake output wire you will need to run to the cab/battery…

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Answer 5

The Curt Echo #C51180 picks up the brake lamp signal which then tells the controller that the brakes are being applied, and at the same time the internal accelerometer is telling the unit how quickly and with how much force the brakes are being…

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Answer 6

The Curt Echo Brake Controller part #C51180 is a great choice because of its convenient and simple installation. The 7-way connector that you mention part # A10-7084VP pugs into the 4-way connector you purchased part #C56217. The white wire from the…

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Answer 7

Hey Antoine, so the two kits you mentioned are actually really similar and honestly I would go with the part #ETBC7 if I were you. The #ETBC7L is basically the same thing minus a couple wires and breakers so you may as well get the kit that has…

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Answer 8

I would be happy to help! Starting with the Curt Echo Wireless #C51180 it only activates the brakes based on the intensity you apply the brakes, and will not apply the brakes by hitting a bump in the road. I guess if you were to hit a rather large…

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Answer 9

Although the Tekonsha Prodigy P3 #90195 and Primus IQ #TK90160 electric brake controllers are very similar they do have some key differences as well. For one the P3 is designed to work with electric and electric over hydraulic brake systems. The…

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Answer 10

The trailer brake output or blue wire is not connected on a 4 to 7-way adapter like the 4 to 7-Way with 4-Way Adapter part #ETBC7L when using a wireless trailer brake controller like the Curt Echo Wireless Brake Controller part #C51180. The two four…

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Answer 11

Absolutely our Tongue Weight Scale #e99044 will work perfectly with your travel trailer! Our scale has a 2,000 lb capacity which you may think that a 5,000 lb trailer would be too much for our scale, but it's actually an ideal size trailer. What…

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Answer 12

The 12 volt power on the 7-way will not have enough juice for an electric winch so there's no way to use the 7-way like you wanted. The best option for your winch is really using a quick connect wiring kit, the Bulldog Winch Wiring Kit for…

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Best Way to Add 7-Way Connector on 2009 Toyota FJ Cruiser for 12V Power to Trailer

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