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7 plug to 4 plug electrical connections
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Hello, I have an old A-liner with a 7 plugs connector, but my TV only has the flat 4 connector. My A-liner doesn't have electric brakes, and I don't use its battery, so I thought that I could just avoid using those cables, and connect four from the 7 plug to a flat plug. It doesn't work. If I simply connect the white, brown, yellow and green cables in the same order than my TV, the trailer lights just light up in seemingly random ways. Does anybody know how to connect my 7 plug to a 4 flat plug without having to re-wire the whole trailer? Thanks Diego |
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They sell adapters to go from 7 to 4 & vice versa,
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Miady 4-Way Flat to 7-Way Round Blade Trailer Adapter Wiring Plug Connector with Mounting Bracket If it doesn't work correctly all you need to rewire is the adapter, not the whole trailer. Happy camping Dan S
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You can by an adapter from a trailer supply store but I'm not sure that safe. I know because the dealer who sold me mine used an adapter to teach me how to back up. Once I knew I could do it and agreed to buy it, he installed the correct one. On mine I had to have the brake control installed in my car . They are mandatory in NYS. I wouldn't want to not have coming down some of the hills I've been on. Kathy Baxter Ranger 10? 2012. On Tue, Jul 5, 2022, 3:48 PM Expedition 2003 via <saizdiego=[email protected]> wrote:
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开云体育I fully agree. My understanding is the 4 to 7 adapter does not activate the trailer brakes without an controller. ? From: [email protected] <[email protected]>
On Behalf Of KATHRYN BAXTER via groups.io
Sent: Tuesday, July 5, 2022 5:16 PM To: A-frameCamperForum@groups io <[email protected]> Subject: Re: [A-frameCamperForum] 7 plug to 4 plug electrical connections ? You can by an adapter from a trailer supply store but I'm not sure that safe. I know because the dealer who sold me mine used an adapter to teach me how to back up. Once I knew I could do it and agreed to buy it, he installed the correct one. On mine I had to have the brake control installed in my car . They are mandatory in NYS. I wouldn't want to not have coming down some of the hills I've been on. ? Kathy Baxter Ranger 10? 2012. ? ? ? ? On Tue, Jul 5, 2022, 3:48 PM Expedition 2003 via <saizdiego=[email protected]> wrote:
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But she said her trailer does not have electric brakes so the 4 to 7 adapter will make all the circuits she DOES have work just fine. Only the battery charging and brake circuits will be inactive. Her lighting will work just fine - tail, turn and brake lights.? On Tue, Jul 5, 2022 at 2:34 PM Lunsford Loving <Tad@...> wrote:
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开云体育Your understanding is not correct, sorry. You do need a brake controller to activate the brakes, but you also need a wired 7 pin Bargman plug to provide the extra blue wire that activated the electric brakes. A 4 to 7 pin adapter will not allow for brakes, charging the camper battery from the TV, or back up lights.?Dave? ......? My understanding is the 4 to 7 adapter does not activate the trailer brakes without an controller. |
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I think you misunderstood, you seemed to be mistaken - per the original post, the trailer does not have brakes installed. So having a 7 way or controller isn't going to do anything.
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Not all states require trailer brakes or no brakes under a certain weight.
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I wanted to use my tow vehicle (2004 Honda Element) with a small utility trailer as well.? At Wally World they have an adapter for about $28.? It is a 7 prong female that the 4 prong plugs in from the back.? The you can unplug the 4 prong and use it with a utility trailer.
I have purchased an electric brake controller, but not installed.? With just the 4 into 7 adapter all the trailer lights work great.? Don"t rewire your trailer, it doesn't need it and neither do you. The 4 into 7 adapter is an investment you can build on. Happy Camping |
开云体育Dan :Read it again, my friend.? The OP clearly states that he expects his electric brakes to work with his 4/7 adapter once he installs a controller. My statement is correct. A 7 pin Bargman plug is required for elective brakes. Any state requirements are irrelevant to this discussion. Dave -------- Original message -------- From: dan smartt <dansm@...> Date: 7/7/22 6:29 PM (GMT-05:00) To: [email protected], Dave - Webmaster <dhmwebmaster@...> Subject: Re: [A-frameCamperForum] 7 plug to 4 plug electrical connections Not all states require trailer brakes or no brakes under a certain weight.
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开云体育Ok. I stand corrected?
Tad Loving
From: [email protected] <[email protected]> on behalf of dan smartt via groups.io <dansm@...>
Sent: Thursday, July 7, 2022 6:29:04 PM To: [email protected] <[email protected]>; Dave - Webmaster <dhmwebmaster@...> Subject: Re: [A-frameCamperForum] 7 plug to 4 plug electrical connections ?
I think you misunderstood, you seemed to be mistaken - per the original post, the trailer does not have brakes installed. So having a 7 way or controller isn't going to do anything.
Not all states require trailer brakes or no brakes under a certain weight.
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Even with a brake?controller a 4 to 7 pin adaptor will never activate?brakes if you have them on your trailer. You must have a 7 to 7 with a brake controller?to activate brakes.? Steve On Thu, Jul 7, 2022 at 3:57 PM <stevie.gallaher@...> wrote: I wanted to use my tow vehicle (2004 Honda Element) with a small utility trailer as well.? At Wally World they have an adapter for about $28.? It is a 7 prong female that the 4 prong plugs in from the back.? The you can unplug the 4 prong and use it with a utility trailer. |