Can You Use Other Battery for Curt T-Connector Vehicle Wiring Harness On 2018 Ram ProMaster 2500

Question

Question:

Does the hot lead need to be connected directly to the vehicle battery or can I connect it to a separate independent battery that is not connected to the vehicle electrical system. I have a camper van and would prefer to use independent camper battery bank to power the harness. Thank you for your help.

asked by: Mike S

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Expert Reply:

The Curt T-Connector Vehicle Wiring Harness part # C58DR which is a fit for a 2018 Ram ProMaster 2500 requires a battery connection for power. The battery connection is actually what powers the trailer lights, the t-connectors just pull signal from the vehicle lights, not power. The power must come from a battery, preferably the vehicle battery which gets frequent charges from the alternator. That said, if you want to use a separate battery you have in the rear there will be no issues with this.

expert reply by: Conner L

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Answer 1

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only…

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Answer 2

If you do not currently have a trailer wiring harness on your 2016 Ram ProMaster 2500 then we first need to start with a 4-way for which I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part #C56209 because…

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Answer 3

To install both a 4-way and a 7-way on your 2015 Ram ProMaster 1500 you would need to first start with a 4-way kit like the Curt #C58DR and then convert it to a 7-way with the part #37185 which also has a 4-way on the side of it just like you are…

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Answer 4

To install the Tekonsha Prodigy P3 Electric Brake Controller #90195 into your 2014 Chevrolet Express the black wire from the controller will go to 12 volt power, the blue wire runs back to your 7-way trailer connector at the rear of your van, the…

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Answer 5

Yes, the Universal Installation Kit for Trailer Brake Controller item #ETBC7 does fit the 2021 Ram ProMaster 1500 so long as you have a 4-way wiring harness installed like the Curt T-Connector Vehicle Wiring Harness item #C58DR. The item #ETBC7 kit…

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Answer 6

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 7

Sorry to hear about that issue! I reached out to my contact at Curt and they have run into this issue before. The stud pictured is a grounding stud that is not used and is not always in the way, it seems Dodge did not put it in the exact same…

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Answer 8

If the grounding nut/bolt are being used on your 2021 Ram ProMaster 2500, you are correct in that the Curt #C13207 will not be the best option for you. With that said, I recommend going with the Curt #C13295. This will install behind the bumper beam…

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Answer 9

We can definitely accomplish your goal, which is to have a wiring connector on your 2022 Ram ProMaster 3500 with both a 7-way and a 4-way. While you cannot use the #C58DR without connecting it, the 7-way adapter you'll use actually has a plug on…

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Can You Use Other Battery for Curt T-Connector Vehicle Wiring Harness On 2018 Ram ProMaster 2500

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