bing tracking image
Customer Service My Orders
  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2022 Ram 1500 Classic
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
SCHEDULE AN INSTALLATION
go
CURT

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Part Number: C55580
187 Reviews | 19 Questions
In Stock
$47.60
Retail:$76.95
You Save: 38%
 Custom Fit Vehicle Wiring
Not Confirmed to Fit

2022 Ram 1500 Classic

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

Add to cart
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

curt custom fit vehicle wiring 4 flat plug-in t-connector harness with 4-pole trailer connector
curt custom fit vehicle wiring end connector 4 flat c55580
curt custom fit vehicle wiring end connector 4 flat
curt custom fit vehicle wiring trailer hitch 4 flat t-connector harness with 4-pole connector

Show All (4) Product Images

Show Fewer Product Images

In Use/Installed

2009 toyota sienna custom fit vehicle wiring curt trailer hitch 4 flat c55580
2009 toyota sienna custom fit vehicle wiring curt trailer hitch plug-in on a
2009 toyota sienna custom fit vehicle wiring curt 4 flat plug-in c55580
2009 toyota sienna custom fit vehicle wiring curt trailer hitch 4 flat t-connector harness with 4-pole connector
2009 toyota sienna custom fit vehicle wiring curt end connector 4 flat c55580
2009 toyota sienna custom fit vehicle wiring curt end connector 4 flat on a
2009 toyota sienna custom fit vehicle wiring curt end connector plug-in c55580

Show All (7) In Use/Installed

Show Fewer In Use/Installed

Customer Photos

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector customer photo

Show All (1) Customer Images

Show Fewer Customer Images

Videos

Show All (2) Videos

Show Fewer Videos

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
SCHEDULE AN INSTALLATION
go
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C55580 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (187)
  • Q & A (0)
  • Related Parts
  • Photos

CURT Custom Fit Vehicle Wiring - C55580

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Tow Without Factory Prep: 4-pole flat connector powers trailer stop, turn, and running lights.
  • Plug-and-Play Install: T-connector plugs inline with tail lights—no splicing needed.
  • Reliable Signal Output: Converter box delivers 3 amps per stop/turn side and 5 amps running.
  • Upgrade Flexibility: 4-way plug can adapt to a 7-way setup for trailer brakes or battery feed.
  • Protects Vehicle Wiring: Converter isolates trailer faults to prevent damage to factory circuits.

Features to know about

Installs Without Cutting or Splicing: Plug-In T-Connector Harness

Wiring up a trailer doesn’t have to mean cutting into factory wires. The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector plugs directly into existing vehicle connections. It’s a plug-in design, so there’s no guesswork, no wire tracing, and no splicing needed to get your trailer lights working.

Comparison image showing Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, displaying connector ends and plug interfaces for vehicle trailer wiring setup.

Delivers Reliable Power to Trailer Lights: Rated for 3 Amps per Stop/Turn and 5 Amps Running Lights

This harness is built to handle the job with an amperage rating of 3 amps per side for stop and turn signals, plus 5 amps total for running lights. That’s enough power for most standard trailer lighting setups. The included converter helps protect your vehicle circuitry and keeps the signal lines working properly between the vehicle and trailer.

Fixes Faulty or Damaged Wiring: Simple Replacement Solution

If your old wiring has shorted out or stopped working, this harness is a straightforward fix. The integrated converter box replaces damaged circuits and restores proper lighting function. Just unplug the old setup, plug this one in, and your trailer’s brake and turn signals will be back online.

Adds Versatility for Future Upgrades: 4-Way Connection Ready for Adapters

The 4-pole flat connector gives you running, turn, and brake light functions right away, and it’s also ready to work with adapters if you need more capability down the line. You can easily pair it with a 7-way adapter when you’re ready to add a brake controller or maintain a trailer battery using a 12-volt circuit.

Specs

Electrical Specifications

  • Stop/Turn Circuit Amperage: 3 amps per side
  • Running Light Circuit Amperage: 5 amps total

55580 CURT T-Connector - Surface Mount Technology - 4 Wire

Similar to Tekonsha 118304 and Hopkins HM11143485

Installation Details C55580 Installation instructions

This Product Fits The Following Vehicles






Customers Who Purchased This Custom Fit Vehicle Wiring Also Bought...



Customer Satisfaction Score:

Ratings & Reviews

4.8

187 reviews
5 Stars
(162)
4 Stars
(19)
3 Stars
(4)
2 Stars
(1)
1 Star
(1)
Review Sort Icon
by:
2006 Toyota Sienna
The plug-and-play installation is fantastic... And eTrailer's installation video is very helpful.
by:
2009 toyota Sienna
I’m very impressed with this company and the quality of the products, both the hitch I ordered for my 2009 sienna and the wiring harness. The quality and fitment was perfect. While you could use a round brush, I preferred to use a tap to clean out the threads in the frame before I installed the bolts. I didn’t have to remove my bumper to install the hitch as I think some others have mentioned depending on model year.
by:
2007 Toyota Sienna
I purchased the tow hitch and wiring harness for my 2007 Toyota Sienna. So much cheaper than my local Toyota dealership. Shipping was very fast. Now for the product, it bolted up very nicely and fits perfectly. I purchased for my 2007 Toyota Sienna to haul some landscaping products on my 5 x 8 trailer. Great product and great price! Very satisfied
Customer Large Image
Customer Image
Click to Enlarge
by:
2006 Toyota Sienna
Very simple installation and the video made it even easier with some good pointers.
Especially nice that it is truly just unplug factory connectors and plug in the appropriate wiring harness connectors.
If you don't have an electrical tester or you want a simple tester for this 4-pole Flat Trailer Connector, recommend purchasing Item #I26 Curt LED 4-Way Flat Connector (Vehicle End) Tester at the same time. ~$5 and lets you walk away knowing installation is completed correctly.
John A. profile picture

John A.

7/20/2018

Wow! Thanks for following up. All are working great.

by:
2007 Toyota Sienna

I recieved the new curt hitch quickly and my plug in wiring harness wich is the way to go no splicing wires just plug it in . my installation was for a 2007 toyota sienna. The directions say to lower the exhaust you do not have to lower it. You can push it over to the side those rubber mounts flex enough to get the bolts in. If your van is not new the bolt holes will be rusty go to a hardware store buy a tap the correct size tap is. 12mm×1.25 run the tap in all the holes before installing the bolts if you do not do this it makes very hard to install the bolts this will save you time.use oil on your bolts or antisieze, this will help them thread into the holes easier.have a friend help it makes things easieasier.it took about an hour for my installation.
Brent profile picture

Brent

4/29/2014

I installed the wiring harness for my 07 toyota sienna its been great . The curt hitch I bought has been great I use my sienna like a truck .

by:
2006 Toyota Sienna
Received the wiring harness on time and it is exactly as described.
The instructions were easy to follow and made the installation a snap. The fact that all the wires are long enough to hide the converter and the 4 prong plug in the jack compartment makes this a very clean install. This is a great product at a reasonable price, and I would recommend it to anyone.
Walt C. profile picture

Walt C.

1/6/2016

Works great! No problems at all. Thanks,

by:
2004 Toyota Sienna
easy installation, and worked without splicing wires or altering original harnesses.

Shipping was fast and it worked as described in your videos. Installed in about an hour, but could do it much faster now that I have done it once. Only problem encountered was the result of not following instructions.

I recommend etrailer and would use them again.

Liam C. profile picture

Liam C.

6/29/2019

Works when I need it. Haven’t used it much. Really liked that no cutting and splicing was needed.

by:
2008 Toyota Sienna
Installation was easy, quality was excellent. In order to pass the trailer connector through to the outside of the van I made a cut one of the rubber body plugs and passed the connector through that.
Dave S. profile picture

Dave S.

8/23/2018

Thanks for the email. Both the hitch and wiring are performing great, Im totally satisfied with both.

by:
2004 Toyota Sienna
The Curt T-Connector was very simple to install. It does just what I need. I didn't need to do any drilling as I ran the wires from the passenger side and keep them stowed in behind the jack compartment door and just run them out through the door and then the lift gate for use. Great product.
Steve D. profile picture

Steve D.

8/3/2015

It is still working great. I would buy this product again.

by:
2004 Toyota Sienna
I've used eTrailer for my trailer wiring and vehicle hitch needs for several years. I've never had any problems with the items I've purchased.
Dane G. profile picture

Dane G.

2/20/2018

We are happy with our hitch and trailer wiring. Thank you for the follow up.

by:
Arrived on time, easy installation fully functional.
by:
2006 Toyota Sienna
This hitch fit perfectly. While you do not have to lift the back end of the vehicle, lifting it 12-18" off the ground makes installation that much more simple. It is key to clean out the mounting holes in the vehicle frame, the cleaner the holes the easier the installation.
Tim F. profile picture

Tim F.

8/16/2020

Great, no issues as all.

by:
Easy to follow instructions. Easy installation. No splicing. Plenty of wire to reach both sides
by:
2005 Toyota Sienna
Great trailer, especially for a family with a minivan. Tows wonderfully, barely notice with our 200000+ Sienna. Tracks perfectly as well. Got the removable tongue which helps immensely with storage in the garage. Fairly simple to put together, just need a good set of wrenches and/or socket set. Only problem has been with wiring. Am blowing out the taillight fuse. Will try to rewire, probably insufficient grounding. Just remove the taillight fuse when towing and tow in daylight.
by:
2010 Toyota Sienna
I have a Curt trailer hitch on my 2004 Toyota Sienna, which I am extremely pleased with. I have been using the hitch exclusively for mounting a Yakima bike rack... until recently. I acquired a utility trailer and, in California, the trailer must have functioning lights.

I decided to go with a Curt wiring harness for 2 specific reasons: 1) Curt seems to have an excellent reputation (and as said earlier I am extremely pleased with my Curt trailer hitch) and 2) the harness used connectors to the vehicle wiring versus splicing into the vehicle wiring (which I did NOT want). I opted to purchase thru etrailer.com because of their reputation according to my Google searches.

As for the wiring harness, I am again extremely pleased... the product worked perfectly (should you expect anything less?). Installation time was about 1&1/2 hours... but I was very careful taking things apart, triple checked everything during installation, taped the wiring in place where I felt appropriate, and carefully reassembled things. If you did these for a living or are far less picky than me, I can see maybe 30-ish minutes. As for the Curt website claim of 10 minutes installation time... hmmm.

The only minor disappointment was that every(?) visual of this harness that I saw on the web showed a wiring diagram on the control module. Even the instructions received with the harness included a picture with a wiring diagram on the module. Mine had none. A small issue I know, and its not really needed. But... I prefer to receive what I'm being shown I will receive.

Lastly, I must make a comment about the great service I received from etrailer.com... and particularly from Cathy H. When I placed the order I neglected to select expedited delivery... I wanted to be able to use the trailer ready that coming weekend. I called etrailer.com maybe 5 minutes after I hit submit and explained the situation. Cathy was extremely gracious, understood my predicament, cancelled the order I placed and submitted a new order on my behalf. Because of this service I received the order in time to install the harness and thus use the trailer on Saturday. Thank your etrailer.com and THANK YOU Cathy... for your awesome Customer support and service.
by:
2007 Toyota Sienna
The product came on time as estimated. It fits my 2007 Toyota Sienna. The installation video was great help.
Tuan profile picture

Tuan

10/8/2019

Still working

by:
2004 Toyota Sienna
I put this on a 2004 Sienna. I got a 12m-1.25 tap from napa and cleaned all the threads under the car. The hitch receiver lined up on 4 of the 6 bolts, the front hole on each side did not line up. , after calling etrailer and them saying it needs to bend the arms on each side outward. As 3 of the 4 recent reviews of this hitch for the Sienna all said they needed to bend the arms outward, apparently they are coming out of the factory with the arms an inch and a half too close together. Once I bent mine out it went on in ten minutes. and works good. I chose this Draw Tite hitch over the Curt because of the higher weight rating, which exceeds vehicle tow rating. I also
ordered the quick fit wiring harness which installed easily.
by:
2010 Toyota Sienna
2004 Toyota Sienna. PERFECT FIT! So was the electrical harness! Amazing! A product that matches the claim. The whole shebang arrived in a couple of days in mint condition. Several notes on my installation. Use ramps to get a comfortable look at the bottom of the vehicle. Then, make sure you soak the frame threads with Liquid Wrench or equivalent for several hours before installation and have a small plumbing type wire brush to ream out the threads THOROUGHLY. My van is 10 yrs old and there was a lot of crud so I hit the threads several times over two days as I waited for some spare time to install. Despite the Liquid Wrench soaking I had to use a breaker bar to spin the bolt the first time and had to clean the gunk from the threads several times. PB Blaster might be a better solution. And hire a helper if you don't have a floor jack to hold up the hitch. The exhaust just pushes out of the way with a block of wood. Twist one of the bolts into each hole to really clean the threads before you even touch the hitch. Use the same one for each hole in case you damage it. After that it was simple. Then, instead of running the flat four harness out the rear hatch I ran it through a rubber grommet that lies in the bottom of the 3rd row seat stowage well. The flat wire will lie under the carpet, out of sight, and fits past the grommet without any cutting of the rubber and exits directly above the receiver. I just weatherized it with window caulk and then strapped the wire onto the metal with liquid nails. A couple of cable ties hold the flat wire onto the round bar. Nice look. Note to e-harness - include longer black cable ties for securing harness to receiver tube.
by:
2005 Toyota Sienna
Hitch went on like a charm and the lights harness was perfect. Good purchase and good results.
Ben T. profile picture

Ben T.

10/27/2017

Thanks, theyre still working great!

by:
2005 Toyota Sienna
This was an easy installation. The video for it on etrailer.com was very helpful. If you choose to run the trailer connector out through the grommet to mount by the hitch, it'll be pretty close to the exhaust. In the end, I drilled a couple of small holes through the underside of the plastic part of the bumper to facilitate attaching the wires out of the way of the tailpipe.
by:
2008 Toyota Sienna
Installed quite easily using the etrailer video.
I stuck the controller as high up as I could in the jack area but goofed put the yellow wire up. That used extra 2” of yellow wire to left taillight which almost made it too short. Before sticking up the controller, make sure you’ve got enough yellow wire to conveniently plug/unplug left taillight, with at least 4” of yellow wire sticking out.
by:
Installation was straight forward. The videos are great. However, I did have some issues with the performance. I do think it was possibly related to grounding issues. Ultimatley I did replace this wiring harness with one that has its own power source, and more substantial grounding wire.
by:
2007 Toyota Sienna

I recieved the new curt hitch quickly and my plug in wiring harness wich is the way to go no splicing wires just plug it in . my installation was for a 2007 toyota sienna. The directions say to lower the exhaust you do not have to lower it. You can push it over to the side those rubber mounts flex enough to get the bolts in. If your van is not new the bolt holes will be rusty go to a hardware store buy a tap the correct size tap is. 12mm×1.25 run the tap in all the holes before installing the bolts if you do not do this it makes very hard to install the bolts this will save you time.use oil on your bolts or antisieze, this will help them thread into the holes easier.have a friend help it makes things easieasier.it took about an hour for my installation.
by:
2005 Toyota Sienna
Bought a receiver and light harness for my 2005 Toyota Sienna Everything worked exactly as planned. Also the year before I bought a light harness for our Honda Odessey. Same results worked like a charm. I would recommend etrailer to anyone who is looking for parts and products for their hauling needs.
by:
2008 Toyota Sienna
This is a good product and a ingenious idea. I loathe the idea of cutting into a wire harness to install trailer wiring. This is plug and play. Id give it 5 stars if it had better instructions more specific to exact application. Still it was fairly easy and works great.
25
187
true
Show More Reviews

See what our Experts say about this CURT Custom Fit Vehicle Wiring

Do you have a question about this Custom Fit Vehicle Wiring?
  • Troubleshooting Trailer Lights Not Working with Hopkins 4-Way/7-Way Adapter on 2006 Toyota Sienna
    It is always a possibility that an adapter being used is bad but since you are only testing your trailer lights when you're using the Hopkins Adapter # 37185 I recommend making sure the ground on the Hopkins is connected to a clean, bare-metal surface and testing the wiring on your trailer, especially since the Curt T-Connector # C55580 is working properly on your 2006 Toyota Sienna. If your ground is connected to a clean, bare-metal surface then what you need to do is either connect the...
    view full answer...
    Image 1 for
  • 4-Pole Trailer Wiring Harness Fit for 2015 Toyota Sienna
    The correct Curt 4-pole trailer wiring harness for your 2015 Toyota Sienna is their part # C56106 if you have the SE model or part # C56261 if your Sienna is NOT the SE model. Both are powered converters that provide isolation and protection for your new car's wiring by drawing the actual power for the trailer lights directly from the car's battery. The car's internal wiring just acts like a switch to trigger the harness to draw that power from the battery. This is important protection...
    view full answer...
  • Recommended Hitch and Wiring Harness for a 2006 Toyota Sienna
    Hey Nate. All the connectors are going to seal up about the same and have identical issues. What you need to do is use Dielectric Grease item # 11755. It covers your contact points and keeps moisture away. It also helps with conduction. To add a hitch to your 2006 Toyota Sienna, I recommend our etrailer item # e98837. This hitch is custom fit and bolts to your Toyota with included hardware. The etrailer Hitch item # e98837 is a class III hitch with a 2" receiver. It is made in the USA...
    view full answer...
  • Difference between Tekonsha T-One and Curt T-Connector Wiring Harness for 2007 Toyota Sienna
    The Tekonsha T-One # 118304 and Curt T-Connector # C55580 Vehicle Wiring Harnesses are very similar. These are both custom fit wiring harnesses that include a tail light converter, which is required for your 2007 Toyota Sienna because the brake and turn signal wires on this vehicle are separate. The converter is needed to combine the two functions to be compatible with the trailer wiring system. The Curt # C55580 does have higher maximum amperage for the stop/turn and tail lights and is...
    view full answer...
  • Recommended Hitch for a 2008 Toyota Sienna
    Hey Mark, the best hitch for your 2008 Toyota Sienna LE is the etrailer item # e98837. This hitch is custom fit and bolts to your van with included hardware. This is a class III hitch with a 2" receiver. It has a 3,500 lbs towing capacity and a 350 lbs maximum tongue weight. These capacities can be increased to 5,000 lbs and 500 lbs when used with a weight distribution system. The reason the etrailer item # e98837 is the best hitch is because of the way it mounts. The receiver sits right...
    view full answer...
  • How to Use 12-Volt Circuit From Trailer Connector to Maintain Trailer Mounted Battery
    In order to provide 12-volt power to maintain your trailer mounted battery, you'd need to install a 7-way trailer connector adapter, part # 37185 and a few other parts. The adapter would plug into the 4-pole provided by the # C55580, and would have 4 other loose wires. The blue and purple wires can be bundled up out of the way, as they won't be needed at this time. The white wire would be grounded to the vehicle frame and the black wire would be extended by a length of 10 gauge wire long...
    view full answer...
  • How to Add Taillights on Thule T2 Bike Rack That Blocks Taillights of 2009 Toyota Sienna
    Although it's intended for a cargo carrier, we have a light kit that work great for you. Part # 98174LED provides long lasting LED lamps that use minimal power but are very bright. You'll also need two brackets for the lamps, part # BK70BB. The brackets could be mounted to the underside of the rack using bolts or even zip ties if the idea of drilling holes in your bike rack doesn't thrill you. Another option would be magnetic tow lamps like # RM-2120 that could be installed on top of your...
    view full answer...
  • Parts Needed to Add a 7-Way Trailer Connector to a 2006 Toyota Sienna
    For the 2006 Toyota Sienna you would need to use the 4 and 7 way installation kit # ETBC7. There is no powered plug in connector available for the Sienna just because the vehicle is not set up for it. If you already have a 4-Way wiring harness on the van then the ETBC7 will be all you need. But if the van currently has no wiring you will first need to install a 4-Way using # 118304. I have linked instructions and a video for this harness. If you wanted a powered 4-Way converter instead...
    view full answer...
  • Troubleshooting Trailer Brake Light Issue with Curt Wiring Kit on a 2010 Toyota Sienna
    Thanks for the information, Dave! The trouble you're experiencing with the Curt T-Connector # C55580 on your 2010 Toyota Sienna could either be on your trailer directly, or it could be that the converter box has gone out. The best way to figure out which part is the problem is to hook your trailer up to a different vehicle or use a circuit tester # PTW2993 to test the output side of the black box on the Curt wiring. If the trailer side is the problem then you probably have a bad connection...
    view full answer...
  • Trailer Wiring Harness for a 2009 Toyota Sienna
    Neither of the trailer wiring harnesses for the 2009 Toyota Sienna require a direct connection to the vehicle battery. Both Tow Ready harness # 118304 and Curt harness # C55580 plug in line with the vehicle tail light wiring and the only other connection that needs to be made is the ground wire. Some vehicles require a powered converter if there isn't a plug and play type of T-connector available or if the wiring is suspected to not be able to handle the power draw without a powered converter....
    view full answer...
  • 2010 Toyota Sienna Hitch, Weight Distribution, and Brake Controller Recommendation
    We have you covered on everything you mentioned so that you can tow your pop up camper with your 2010 Toyota Sienna. For a hitch the Curt part # C13105 is rated for use with weight distribution and is a confirmed fit for your vehicle. I attached an install video for you to check out as well. You will need to start with a 4-way (if you do not have one). For that you would want the # C55580. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller....
    view full answer...
  • Which Trailer Wiring Harness and How to Install It on a 2009 Toyota Sienna
    To wire your 2009 Toyota Sienna for towing, I'd recommend the Curt # C55580 wiring harness. I'll link you to an install video showing a similar wiring harness from another manufacturer being installed on a 2008 Sienna. The install procedure shown in the video will be identical to yours. As you can see from the video, the installation is fairly simple. A person of average mechanical ability should be able to handle it with no problem. If after viewing the video, you determine that the install...
    view full answer...
  • What is Amperage Rating Per Stoplight/Blinker Circuit of Curt Trailer Wiring Harness # C55580
    Yes the stop/turn circuit amperage rating for the Curt trailer wiring kit part # C55580 is per side of the trailer. So it is rated for 3 amps for the left stop/turn circuit and 3 amps for the right stop/turn. This is because the blinker and stop circuit is on same wire. So to look at it as just the stop light circuit you could say it's rated for 6 amps since that's both assemblies at the same time. Then for the running lights circuit it's rated for 5 amps total.
    view full answer...
  • Will Curt Bumper-Mount Trailer Hitch # E-3S Fit 2008 Toyota Sienna
    The bumper-mount 2-inch hitch you referenced, Curt # E-3S, is not suitable for use on the rear bumper of your 2008 Toyota Sienna but we do offer custom-fit 2-inch Class III hitches that will bolt right on to your Sienna. All choices can be seen on the linked page, but the most cost-effective option is Curt # C13105. This hitch bolts on using included hardware and requires no drilling. The linked video shows the complete installation and two linked articles will give you useful tips for...
    view full answer...
  • 4-Way Trailer Wiring Recommendation for a 2007 Toyota Sienna to Replace Damaged 4-Way
    The fourth pin of a 4-way would be the right turn/stop signal which should see voltage when the vehicle brakes are applied. Most likely the converter box shorted out and now is damaged and would need replacing with the # C55580. Before you do that though you will want to track down the short on the wiring of your trailer that potentially damaged your current converter box. Look for cut or exposed wire and fix as needed.
    view full answer...
  • Troubleshooting Trailer Wiring of 2009 Toyota Sienna with No Stop/Turn Circuits
    It sounds like a converter box issue on your setup. Can you test for voltage feeding into the box and coming out of the box? I'd be willing to bet you'll find it's going into the box fine but not coming out which means it has an internal short and would need to be replaced. We've found that the most reliable trailer wiring brand is Tekonsha so I would recommend replacing what you have with the part # 118304.
    view full answer...
  • Trailer Hitch Availability for 2006 Toyota Sienna AWD Limited
    All hitches we offer can be installed without drilling on all versions of the 2006 Sienna and the included link will let you view each of them. I also linked an install video and two helpful articles on hitch installation to help you through that process. The linked instructions indicate the tools required, which include a torque wrench. We offer two sizes and classes of trailer hitch for your 2006 Toyota Sienna AWD Limited, both a 1-1/4-inch Class II hitch like # 36513 from Draw-Tite...
    view full answer...
  • How to Pick Out Ball Mount for Use with Curt Hitch on a 2007 Toyota Sienna
    For your 2007 Toyota Sienna the Curt hitch part # C13105 is a confirmed fit. Then for trailer wiring the part # C55580 is a confirmed fit. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and a storage bag. If the ball mount kit does not include a ball mount...
    view full answer...
  • Will Trailer Wiring Harness from 2004 Toyota Sienna Fit a 2009 Toyota Sienna
    There isn't any modification needed to wiring harness # C55580 because it fits both the 2004 and 2009 Toyota Sienna as-is. I have included a link to a video showing an example installation on a 2009 Sienna for you.
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Lindsey S
Updated by:
Lindsey S
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Kathleen M
Video by:
Kathleen M
Employee Randy B
Test Fit:
Randy B

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.



Product Experts Available Now!
Call 1-800-940-8924