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Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector - Vehicle End - Ergonomic Design

Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector - Vehicle End - Ergonomic Design

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HM48470 - 4 Flat,5 Flat,7 Blade Hopkins Wiring
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This heavy-duty trailer connector socket has an outlet for 7-way, 5-way and 4-way flat plugs. A weatherproof, insulated lid covers the terminals. The cover is also easy to open and extra-durable. Lowest Prices for the best wiring from Hopkins. Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector - Vehicle End - Ergonomic Design part number HM48470 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Hopkins Wiring

  • Trailer Connectors
  • Vehicle End Connector
  • 4 Flat
  • 5 Flat
  • 7 Blade
  • Plug Only
  • Hopkins

This heavy-duty trailer connector socket has an outlet for 7-way, 5-way and 4-way flat plugs. A weatherproof, insulated lid covers the terminals. The cover is also easy to open and extra-durable.


Features:

  • Reinforced, easy-grip lid
    • Opens 180 degrees for easier connections
    • Internal seals for ultimate weatherproofing
    • Rugged, oversize hinge
  • Mounting bracket, hardware and terminal grease packet included
  • Works with 7-way, 5-way flat, and 4-way flat trailer connectors
  • 3-Year limited warranty


A heavy-duty bracket holds the vehicle-side connector. The lid of the outer casing opens 180 degrees for direct connections. The lid features internal seals to protect the inner outlet's 7-way blade, 5-wire and 4-wire flat terminals from the elements.



48470 Endurance Connector - 7-Way Blade, 5 and 4-Wire Flat Connector Socket (Vehicle End)

Item # HM48470

Installation Details HM48470 Installation instructions


California residents: click here


Video of Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector - Vehicle End - Ergonomic Design

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Hopkins Wiring - Trailer Connectors - HM48470 Review

Today were going to review part number HM48470. This is the Hopkins Endurance Multi-Tow seven, five and four-way flat trailer connector for the vehicle end. This heavy duty trailer connector socket right here has an outlet for the seven way right here, has an outlet for a five way flat and a four-way flat that can be plugged in right down there. Both of these outlets have the weather-proofed insulated lids to help cover the terminals. You can see this one has a very strong reinforced lid. On the inside has the internal seals for alternate weatherproofing.

This lid also has the seals in there. They do open 180 degrees on both of them for easier connections of your terminals. It also has this nice large rugged oversized hinge which will hold up very well. Now, this part number does include everything shown here, the connector, the mounting bracket, the rear cover that covers your connections on the back, a couple packets of terminal grease and the mounting hardware to mount it to the mounting bracket. So basically when you install this you just mount your mounting bracket to wherever you need to on your vehicle and then you would just line this up.

The four holes right here will line up with the four on the back and then you will use the mounting hardware. Put the screws through here and the nuts back here to tighten it down. Once you get it installed then you can run your wire through here thats on your vehicle and out here, make your connections and then basically this cover will just snap on. You just push it in and it will lock right into place, just like that and then youre ready to go. Now, I do also want to mention that sometimes it gets confusing on the very bottom.

We show a total of five terminals, so when you have five-way flat, like this one pictured here, the trailer will have the four open terminals and then the one ground terminal thats in rubber, all you would have to do is on this one, the ground would be the exposed terminal right here, so you just line the ground up with the housing and you just it in like that and thats how you make your connection, very simple. What gets confusing is sometimes people say, Well, if I have a four-way flat and theres five holes, what happens Its pretty much just the same way. What you would do is, I have an example here of a Hopkins heres a four-way. It has three terminals and then the ground thats coated in rubber. Same way, you just line the ground up, push this in and then three of the holes will line up.

The other hole on the very end would stay open. That causes no problem at all. So you can hook up a five-way flat or a four-way flat in that bottom terminal.That should do it for the review on part number HM48470, the Hopkins Endurance Multi-Tow seven, five and four-way flat trailer connector for the vehicle end. .


Customer Reviews

Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector - Vehicle End - Ergonomic Design - HM48470

Average Customer Rating:  4.8 out of 5 stars   (171 Customer Reviews)

This heavy-duty trailer connector socket has an outlet for 7-way, 5-way and 4-way flat plugs. A weatherproof, insulated lid covers the terminals. The cover is also easy to open and extra-durable.

- HM48470
by:

Installed the Hopkins muti-tow 7, 5, and 4 way flat connector this morning. I ripped the original connector that was attached to the bottom of the hitch receiver off when I was 4-wheeling into the Doll House campgrounds in the Maze District of Canyonlands a month ago. So, I cut a hole in the bumper and mounted the new Hopkins connector, cut off the old broken connector mounting bracket, and connected the factory wiring to the new Hopkins device. Hopkins product installed easily, looks great, is now out of the way, and has the flexibility of multiple trailer connectors when required. I am pleased with the product. Attached is a photo.



- HM48470
by:

Exactly what we had been looking for. Now I can hook up multiple trailers with different connectors and all the electrics on each trailer works. I mounted mine directly to the receiver hitch frame. The biggest challenge for us was routing the backup wire from the taillight housing, through the body of the truck to the connector. the rest went together fairly easily. Seems to be pretty solid and looks much better than the loose pigtail connector it replaced.



- HM48470
by:

Been working great. I silicone the end where the wires come in so that I wouldn't get any moisture in there.


Comments
still working fine
Great - 01/01/2021


- HM48470
by:

I received the product quickly and in perfect condition the packing was excellant. I installed the connector easily and quickly. I consulted the Gm wiring diagram and als found the wires for all the 7 connections. I had a tight spot within the bumper edge, but managed to find short bolts to attach the bracket in old exsisting holes. The rest was easy attaching the connectors and making sure all wires were through the rear enclosure and tightening them down. I tested the 4 wire connector with my boat trailer lights and it worked like it was designed to do. I LOVE the versatility of this connector. Thanks etrailer.com!! Great product at a great price.



- HM48470
by:

Installed: 9/12/2013 Jeep Wrangler Unlimited Installation of the plug was a quick and easy. The existing Warrior hitch has a tab on the side for a trailer wiring socket. Drill a new hole on the installation bracket (comes with the trailer connector) so the bracket on the hitch matches bracket on the trailer connector. Done deal. This is the only trailer connector I found which has the 7, 5 and 4 connector options. Flexibility is always a good idea when you are borrowing someone else trailer or renting.



- HM48470
by:

Build quality seems better than the base Hopkins product I had used before. Installed it in a mounting box (18159) on my Curt round tube hitch.



- HM48470
by:

I had broken my factor connector on my 06 Tacoma, frankly due to a poor design placement by Toyota in my opinion, however I was not going to pay a premium $200+ price for a new OEM part and I wasn't planning to place it back in the original spot to only get broken again. This is a great replacement plus I no longer need a wire adapter. The unit fit perfectly in pre-cut hole that held my left tag light. Only had to drill 4 small holes for the bolts to secure to the bumper. Only pain was cutting the old wire and attaching it to the new connector, but that only took 10 minutes top.



- HM48470
by:

This seems to be a pretty nice plug. Makes it nice with the 4 way and 7 all in one. The lid has a pretty stout spring on it so it should keep the weather out. Fast shipping excellent service.



- HM48470
by:

This Hopkins 7,5, and 4-way trailer cord socket was delivered quickly and fits my needs for all my trailers. It came with all fasteners and complete instructions in the package and etrailer videos. I recommend this product and etrailer.com as a vendor.



- HM48470
by:

I could not find a 7 round with a 5 flat connector anywhere in San Diego. Most of the people I spoke with at trailer shops or RV stores said no one makes it only with a 4 flat connector. I just kept looking because I needed one with a 5 flat for my boat and didn't want to keep using my adaptor. I found etrailer and the rep I spoke with was very knowledgeable and said he had exactly what I was looking for and it was a great price. I will be always using etrailer for my trailer parts for now on. Thank you, Vito Lotta - San Diego


Comments
Still working Great
Vito L - 08/02/2015



- HM48470
by:

The connector interfaces very well with my XC90 and there is no drilling or advanced skills needed. Everything went together very well.



- HM48470
by:

Very happy with this Hopkins connector. Working perfectly after one year of use.



- HM48470
by:

I used this to complete the factory 5th wheel wiring in my 2015 Silverado 3500HD. Gives me a professional installation for my 5th wheel RV.



- HM48470
by:

This was not made for my truck. I knew that before purchasing. I welded two bolts to my bumper to attach it and I am pleased with how it looks. Wiring was easy!



- HM48470
by:

I ordered the Tekonsha Electric trailer brake control and the Hopkins connector. It met my expectations. And easy installation. I have ordered from etrailer several times and they are professional in every way.



- HM48470
by:

It's a connector! We got this connector to wire our small teardrop with an RV 7-blade for underway charging and reverse lights. It's well built, seals well when not in use, and does its job just fine. We did not lube the contacts, but so far no visible corrosion. The 4/5 flat connector is a nice bonus - keeps us from needing to carry along an adapter. If you're installing it in a new location there are two things to remember: make sure you have enough depth at the installation point to allow wiring to run clear, and use a REAL bimetal hole saw if you're installing it in a metal bumper. Would use again.



- HM48470
by:



- HM48470
by:

This receptacle should come standard on all pickups and SUVs!! The seals keep out almost all of the water and grime. The spring-loaded cover acts as somewhat of a keeper for whatever plug is inserted in the large receptacle. The versatility of hooking up to old and new boat trailers, plus any equipment trailer the local rental yard can throw at me, is amazing! I still carry a couple of adapters, but never need them. Installation takes about 15 minutes. Be sure to use the included terminal grease.



- HM48470
by:

Good price good product and fast shippi ng!



- HM48470
by:

This plug is awesome! Using the bottom 5 pin plug on the bottom plug works great on my utility Trl, the other plug I have wired for my other trailer with brakes, it definitely works great with no adapter's no matter what the trailer on mine I'm pulling, would definitely recommend this if you need a great plug!



- HM48470
by:

This trailer plug has everything I wanted. I have a 5 way plug on my boat trailer, I can still use it with a 4 way plug and I will be able to use it with the travel trailer I am planning to buy. I have not yet installed it but I unpacked it and it looks very well made. I have purchased other products from eTrailer and I have not been disappointed with anything's price or quality. Bob



- HM48470
by:

Like this plug because it has the fifth connector in line with the 4-way-flat. I usually have reverse wired to the 5th connector - although I made it so I can easily change it to breaks or 12V. Contacts are covered with not in use and connections are easily made with the way the connectors are positioned.



- HM48470
by:

Very rugged device, good design. This alleviates having a 4 or 5 wire connection hanging from your vehicle. Great for replacement of old connector. Great for DIY


Comments
It is still working great. I would highly recommend this product.
JR H - 07/16/2016



- HM48470
by:

This is a great idea. Can tow multiple types of trailers using this, 7 wire RV style, 4 wire flat and 5 wire flat. Replacing the existing 7 wire RV style connector on my vehicle with this will make things a lot more convenient. 3 of the most common trailer types in 1 simple socket.



- HM48470
by:

I bought this to replace a factory Jeep 7 point connector. I didn't figure out till I was done that the brackets were the same shape and I could have left the original on. It was very easy to install, even for someone as mechanically challenged as I am. The bracket that was included is a bit flimsy and there were no self tapping screws with it. Otherwise it was exactly what I needed. Less than 30 minutes to install


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Ask the Experts about this Hopkins Wiring

  • Mounting Hole Dimensions of Pollak Black Plastic 7-Pole RV Blade-Style Trailer Socket PK12-707E
    The Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector # HM48470 includes a metal mounting bracket to allow attachment to the underside of a mounting surface. The Pollak 7-way socket 12-705E that you referenced we do not carry but the similar Pollak part # PK12-707E has 4 mounting holes spaced apart 2-1/4-inches side-to-side x 1-1/2-inches top-to-bottom, measured on hole centers. Although many such parts have common hole dimensions there can be slight variances between...
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  • Parts Needed to Convert a 4-Way to a 7-Way
    I have a better solution for you than that. If your trailer does not have trailer brakes all you would need is an Adapter 4 Pole to 7 Pole and 4 Pole # 37185. You would just plug your 4-way into the 4-way of the adapter and you would have a functioning 7-way. You would want to tape the rest of the wires up and out of the way. If your trailer has brakes you would instead need the Universal Installation Kit for Trailer Brake Controller # ETBC7. I attached installation instructions and...
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  • How To Install A 7-Way Connector In The Bed Of A 2002 Ford F-250 For A Fifth Wheel
    If you have a factory tow package with a factory 7-way trailer connector already on your 2002 Ford F-250 Super Duty, then I have a couple of recommendations to put a 7-way in the bed of your truck. The Draw-Tite Wiring Harness, # 50-97-410, will plug inline between the OEM wiring harness and the factory installed 7-way connector under your truck bed. You will retain the use of the factory 7-way on the bumper and then have 9 feet of wiring harness to have a 7-way in your truck bed. The...
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  • Parts Needed to Install a 7-Way on a 2015 Subaru Outback Wagon
    If you are looking for a way to 7-way trailer wiring on your 2015 Subaru Outback Wagon you will first need to start with a 4-way. For that you will want the part # C56040. (see install video). Now if your trailer doesn't have brakes all you would need to convert this to a 7-way would be the part # 37185. If you do need a 7-way because your trailer has trailer brakes you would instead need the part # ETBC7. This comes with a length of loom. For a brake controller I would recommend...
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  • No Brake and Turn Signals On Boat Trailer with 5-Way to 7-Way Adapter
    For starters, have you tested the pins inside the 7-way trailer connector on the vehicle to make sure these circuits are active? If not I would do just that but the Adapter 7-Pole to 4-Pole and 5-Pole part # 37385 will only work for you if both the vehicle and trailer are wired the exact same way. I have attached the standard(ish) trailer wiring diagram for you. If I had to guess, I would say that the vehicle side is correct but the trailer side does not match this. Therefore, I recommend...
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    Image 1 for
  • Mounting The Hopkins Multi-Tow 7-, 5- and 4-Way Trailer Connector # HM48470 On A 2010 Volvo XC90
    The Draw-Tite Class III 2 Inch Hitch, part # 75152, has a mounting plate on it that will allow you to attach a mounting bracket for a vehicle end connector. With the hitch installed on your 2010 Volvo XC90 the mounting plate is located to the drivers side of the 2 inch receiver opening. I am including a video of the hitch being installed on a 2010 Volvo XC90. The Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector, part # HM48470, has a mounting bracket that will bolt...
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    Image 1 for Image 2 for
  • How to Change 4-Way Wiring Harness to 7-Way Wiring Harness to Add a Brake Controller
    You will need to upgrade your wiring harness if you are wanting to add brake controller capabilities to your 2014 Lincoln Navigator. The 4-way that is now attached to your Lincoln is used for the brake lights, tail lights and turn signals. To be able to plug your 5-way into your Navigator I recommend using the Hopkins Endurance Multi-Tow Wiring Harness, part # HM48470, along with the Draw-Tite Wiring Kit, part # 5506. You will need to connect the wiring from your current 4-way and the...
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  • Installing a Wireless LED Light Bar for Towed Vehicle Lighting
    I might have a solution for you. You will need to replace the current 7-way trailer connector on the RV with # HM48470 that has both a 7-way and 4-way connector. Then you can use the wireless LED light bar # LIW-LDTL plugged into the 7-way with your dolly plugged into the 4-way. You'll also need a 12-volt socket in the cargo area of the vehicle if there isn't already one. You can use # RM-9332. You'll then need to figure out a way to mount the light in your vehicle's window, like...
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  • Replacement 4 and 7-Way Trailer Connector for a 2000 Ford F-350
    You can use the Hopkins 4/7-Way connector # HM48470. All you will need to do is attach the wires from the old connector in the same places on the back of this connector then mount it where you want it. No other wiring harnesses are needed. The replacement 7-Ways we have for a 2000 Ford F-350 that also have the rectangular plug do not have a built-in 4-Way. We have # C55243 and # 118243. You could use one of these and then use an adapter, # HM47570. If the truck came with the factory...
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  • Brake Controller and 7-Way Recommendation for a 2010 Dodge Grand Caravan
    The absolute easiest way to upgrade your 4-way to a 7-way would be to return the part # HM48470 and get the part number # ETBC7 instead. This comes with absolutely everything needed to upgrade the 4-way and make it fully functional, including the installation of a brake controller and running the power line to use for maintenance charging the battery of your trailer. A brake controller by itself would not come with everything needed to install in a vehicle. I attached an install video...
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    Image 1 for
  • Adding a 7-Way Trailer Connector to a 1997 Chevy C/K Series Pickup
    It sounds like you need to add a 7-Way RV style trailer connector to your 1997 Chevy pickup. Since you already have a connector, you will just need to add a 4 and 7 Way Installation Kit, # ETBC7. Though I am not certain if you have a 5-Way flat connector or a 4-Way flat connector. If you have a 4-Way, it will plug into the back of the ETBC7. If you have a 5-Way, I recommend first installing a 4-Way using part # 118315, and plugging it into the back of the ETBC7. With the 4-Way plugged...
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  • What is the Function of the 5th Pin on a Trailer Connector 5-Way Flat Connector
    The 5th wire on a 5-Way flat connector is intended to connect to the vehicle's reverse light circuit. This is for the exact situation you described, so the 5th wire can signal a surge coupler's electric reverse lockout. If you need a 5-Way flat trailer-side connector, you can use the Draw-Tite 5-Flat Trailer End 48 Inch Harness # 20017. This connector is designed for the 5th wire to carry the reverse light signal from the vehicle to the brake actuator. The # 20017 connector will...
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  • Troubleshooting 5th Wheel 7-Way Adapter Turn Signal Circuit Not Active After Install
    Sounds like you installed a 7-way adapter like the part # 41157 which installs inline with the 7-way at the rear of the vehicle to give you a second one to install up in the bed of the truck. If the right turn signal works on the original 7-way but not on the new one you installed that would most likely indicate a contact issue between the original 7-way and the adapter. You might just try unplugging and plugging the adapter back in to see if that will clear out the connection issue. You...
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  • Powering 12V Cooler Stored in Trailer
    It looks like your Coleman PowerChill Cooler uses a 12V plug to connect to a 12V power source. Splicing the cooler's wiring to the tail light circuit on your trailer will overload the system and I do not recommend powering the cooler this way. From what I was able to find on the cooler, it appears to come with a cigarette lighter style plug that can be used in a vehicle. If this is the case, I instead recommend taking a look at the Hopkins 12V Socket # HM55125. This 12V power socket...
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  • Do 7-Way Trailer Connectors have Amp Ratings for Pins or the Whole Socket
    Most if not all trailer wiring harnesses/connectors use larger wires for the 12 volt and ground circuits compared to the other circuits (lights). The sockets themselves don't have an amperage rating so you will go by the draw of the things drawing power. In order to figure out what the lights are drawing you could connect the trailer to the tow vehicle and turn on a function while testing the trailer side wiring behind the connector with a meter to see what sort of reading you get....
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  • Does Brake Controller on 2007 Lincoln Navigator Need to be Hardwired?
    A brake controller will not need to be hardwired into a 2007 Lincoln Navigator; you mentioned you had wiring for electric brakes so I assume you have the factory 7-way. That means you will only need a brake controller such as the Prodigy P3 # 90195 and Wiring Adapter # 3035-P. That said, sometimes these plugs can be quite difficult to find. Your connector should be above the brake pedal under the dash. Even if you wanted to hardwire your brake controller you will still need to find...
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  • Should Battery of Vehicle Be Disconnected When Installing Hopkins 7-way part # HM48470
    I would recommend disconnecting the vehicle battery before installing the Hopkins 7-way part # HM48470. It would be very easy to short out the bare wires of this kit when wiring it up.
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  • Adding a 4-Flat to 2017 Honda Ridgeline With Existing 7-Way
    If you do not want to use a simple adapter such as the Hopkins # 37385, which plugs into the 7-way on your 2017 Honda Ridgeline and gives you a 4-way or 5-way connector, there is a more permanent solution. What you can do is cut off your current 7-way and wire in the Hopkins Endurance Multi-Tow # HM48470; this will give you a permanent connector and the ability to use a 7-way, 4-flat, or 5-flat like with the strip lights you are adding.
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  • Will Hopkins 7-way part # HM48470 Work with a Pollak 7-Way Connector
    Yes, the Hopkins 7-way part # HM48470 that you referenced will work with a Pollak male 7-way. This connector will basically work with all blade style 7-way connectors.
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  • Depth of Wiring Harness Behind Mounting Flange of HM48470
    The measurement from the back of the mounting plate to the end of the wiring housing and boot is 2-1/2 inches on the Hopkins part # HM48470 .
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    Image 1 for
  • Hole Dimensions for Hopkins 7-Way and 4-Way # HM48470
    I attached a picture that has all of the dimensions for the mounting bracket of the # HM48470 for you to check out. You can see that the hole diameter is 2-1/8 inches and the distance between all of the mounting holes which the 7-way would need to attach to. The overall height and width of the connector is 5.9 inch by 2.9 inch.
    view full answer...
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  • Troubleshooting Trailer Brakes That Remain Engaged When Trailer Is Connected To Vehicle
    The first thing to check is the connectors to make sure there is no corrosion present. That can cause a variety of problems. If that checks out you will need to do some other testing. You can sever the blue wire about 4 to 6 inches from the back of the brake controller and see if the problem still exists. If it does, then you have something wired incorrectly, or the brake controller needs to be replaced. I have attached a drawing that shows how the wiring should be run for a brake controller....
    view full answer...
    Image 1 for
  • Troubleshooting Factory Brake Controller in 2015 GMC Sierra 2500HD
    Some factory trailer brake controllers are not compatible with trailers that use an electric-over-hydraulic actuator such as # HBA-10. Aftermarket controllers like the excellent Tekonsha Prodigy P3 # 90195 include a setting to allow for proper operation with this type of set-up, or with standard electric drum brakes. In your 2015 Sierra 2500 the P3 can be installed simply, using the custom wiring adapter # 3016 that plugs in under the dash. If you do not have an EOH actuator, but instead...
    view full answer...
    Image 1 for
  • Recommendation to Convert 4-Way on 2015 Ford Edge to 5-Way for Boat Trailer
    The Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector # HM48470 referenced in your question can be hardwired to your vehicle in accordance to the wiring diagram in the instructions, but it is better suited to install on vehicle's that already have the 7-Way wiring ran. Since you just have the factory 4-Way on your Ford Edge, I instead recommend using the Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter # 20036. This will plug into your existing 4-Way to provide a...
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  • Parts Needed to Add a 7-Way Trailer Connector to a 1998 Dodge Ram 1500
    If your 1998 Dodge Ram came with a 7-Way and you need a replacement you can use Pollak 7- and 4-Pole Trailer Connector Socket, # HM40975, and Pigtail Wiring Harness, # PK11998 if needed. The Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector, # HM48470, can be used as well but it is a hardwire connector meaning you would have to attach existing wires from the truck to the connector according to the wiring diagram I have linked for you. If the truck came with a factory...
    view full answer...
  • Wiring the Hopkins Endurance Multi-Tow Trailer Connector # HM48470 on a 2001 Mercury Mountaineer
    If the black wire on your 2001 Mercury Mountaineer is the 12V power wire from the vehicles battery you will want to connect that wire to the terminal at the eleven oclock position on the back of the Hopkins Endurance Multi-Tow Trailer Connector, part # HM48470. When wiring the Hopkins connector to your vehicle I would recommend to use a circuit tester like the Quickee Tester, # 3808 to test the functions of the wires and wire the connector by function and not just color. I am including...
    view full answer...
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  • Can a 20 Amp Motorized Lift be Tied into the 12 Volt Circuit on a 2018 GMC Sierra 1500 7-Way Plug
    The 12 volt circuit on your 2018 GMC Sierra 1500 is rated for 30 amps. You can confirm this by looking at fuse location 2 in the fuse panel under the hood. Assuming that you are not also teeing something else in that is drawing power from the 12 volt circuit at the same time you are using the lift then there won't be a problem. Otherwise it would blow the hot lead tow package fuse on the truck.
    view full answer...
  • Can Factory 7-Way on GM Truck Power Electric Winch
    The 12V circuit on the factory 7-Way connectors for your GM trucks won't have enough power to operate your winch, especially when it is under load. The problem isn't just the circuit's rating but also the wire gauge that is used. Powering an electric winch will require much thicker gauge wires to prevent them from being damaged. To wire up your winch I instead recommend using a winch wiring kit like the Bulldog # BDW20207. This includes 24 feet of 1 gauge wiring along with quick connects...
    view full answer...
  • Troubleshooting Trailer Connection and Instrument Panel Lights on 2007 Toyota Tundra
    It can be a bad ground. I recommend that you check the trailer connector for corrosion as you mentioned, but also check the ground on that 7-way connector. It should be metal on metal and free of corrosion and debris. Clean up your 7-way terminals with a small brush and see if the issue is resolved. It sounds like you have the issue even then the trailer isn't connected, but if it only happens when the trailer is connected, then check the main ground on your trailer in the same way....
    view full answer...

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