Trailer Wiring Harness Installation - 2001 Toyota Tundra Video

The difference between a 2000 Toyota Tundra with a towable bumper and a non-towable bumper is that the model with the towable bumper will have a cutout in the center of the bumper for a hitch ball wheres the model with the non-towable bumper will…

I do have a solution for you. In order to add a 7-Way wiring harness to your 2001 Toyota Tundra, you will need to start by adding a 4-Way, #118378, if you need one. I have included a link to the installation instructions for this harness for you to…

I have attached the installation instructions for the Hopkins Engager Trailer BreakAway Kit, part #20099. This kit includes a charger and an LED tester and will work with single and tandem axle trailers. I have also attached a link to an…

There are a host of potential issues and you will need to do some troubleshooting, which I can help you with. The first, and most important, thing to do is check all of your ground connections as they may be weak or loose; weak grounds can cause…

I spoke with my contact at Curt regarding the correct wiring harness for your 2001 Toyota Tundra. He states that it is very likely that while your truck is labeled as a 2001 model, it was actually built in late 2000 with the 2000 model factory plug…

It looks like the connector you need is actually already plugged into something which I have pointed out in the picture you sent. The empty plugs on the right side do not seem to match the connector on the Curt wiring harness #C55367 for the 2000…

Since you have no trailer wiring on your 2000 Tundra, you will want to first install a 4-way like part #118367. You can plug this into the wiring that is on the driver side frame rail near the back of the Tundra. I have attached a photo that shows…

For your 2001 Toyota Tundra, I recommend the T-One Vehicle Wiring Harness #118378. This T-One connector will plug directly into the port located under the vehicle, which is referenced in the picture that you sent. This will provide a 4-Way…

If you have tested the Curt Harness #C55378 with a circuit tester on your 2001 Toyota Tundra, there should not be any signal to the plug when the vehicle has the lights off and there should be power to the lights when the vehicle is turned on. If…

Based on the steps you have already taken it sounds like the converter box is bad which means it will need to be replaced, not opened and serviced. The only thing I'm not sure about is what wiring you specifically have. From what I could find…

The converter box for the Curt T-Connector Vehicle Wiring Harness part #C55378 is not available as a separate replacement part unfortunately. However, I actually recommend you take a look at the T-One Vehicle Wiring Harness part #118378 instead…

The two wiring harness kits you referenced, Curt #C55378 and Tekonsha #118378, are both correct fits for your 2002 Toyota Tundra. Both of these kits are multi-part harnesses that include the required fuse/fuse holder and the installation of the…