Regardless of you need to move house, go on vacation with a caravan, dispose of green waste, or have a hitch is really handy. In this post, we will describe the electrical connection of a trailer hitch of a Tesla Model 3 . In truth, regardless if the set up process is not difficult, it is necessary to describe some details to consider this intervention without any problem. First of all, we will see what the electrical wiring harness of your car hitch consists of, then, in a second step, how to make the electrical connection of the hitch of a Tesla Model 3 .

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What’s the wiring harness for a Tesla Model 3 hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Tesla Model 3?

So we will begin our content page by detailing the basics of a wiring harness of a Tesla Model 3. In order to understand how it functions, you must previously understand its necessity. Whether you have a trailer or a caravan to tow, it is essential and above all mandatory by the highway code to respect certain protocols, here they are:

  • A solid chassis for the trailer…
  • Wheels that fit.
  • An electrical connection.
  • A license plate in plain sight.
  • A stoplight repeater.
  • A traffic light repeater.
  • A blinker repeater.
  • License plate illumination.
  • A fog light repeater.

In order to satisfy all the electrical regulations, you will need to install a wiring harness connection on the hitch trailer of your Tesla Model 3 . We will look into this in this post, if you want to find out how to install the hitch of a Tesla Model 3, please see our content page on this topic.

What is the electrical connection of the trailer hitch of a Tesla Model 3?

We will now fairly quickly describe how the electrical connection of your hitch functions. The connection uses the 12-volt current from your car to power the hitch lights on your Tesla Model 3. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Tesla Model 3 trailer, 7 pins : This is the traditional plug that will be found on all Tesla Model 3 hitches. This electrical connection will allow you to transmit all the lighting functions needed for the rear signalling of your trailer, you will find a plug for each action (left and right indicators, ground, fog light, left and right position light, left and right brake light).
  • Electrical connection for caravan with 13-pin plug for Tesla Model 3: This plug system is mainly used for caravans that involve 12 volts inside to supply the different electrical gear in the cabin. This type of connection necessitates the use of an adapter. The extra pins will bring the 12 volt power permanently (to recharge a battery in the caravan) and the 12 volt power in use (to use the 12 volt equipment when the car is switched on).

How do I hook up the wiring harness of a Tesla Model 3?

To finish this content page, we will fairly quickly describe you how to make the connection of the wiring harness of your Tesla Model 3 .

How to make the connection of the wiring harness of an old Tesla Model 3?

To mount the wiring harness of an old Tesla Model 3, you will have to go and get all the necessary cables in the rear lights of this one. We recommend you to call in a car electrician for this intervention because it is difficult, but we will nevertheless summarize the most important steps to be performed:

  • Remove the trunk lining from your Tesla Model 3 to access the rear light unit.
  • Identify the wires that correspond to each of the taillight functions.
  • Connect them to the lugs on the wiring harness on your hitch.
  • Close the whole thing down.

How do you connect the wiring harness of a recent Tesla Model 3?

For recent Tesla Model 3s, the wiring harness is much easier to connect:

  • You can use a multiplexable box, you will find particular ones for your Tesla Model 3 and universal models. It’s up to you to choose according to your budget, know that a universal version costs between 30 and 60 euros.
  • Remove the trunk lining from your Tesla Model 3 so that you can route the cables from your box to the front of your Tesla Model 3 and connect them to your fuse box.
  • Install the circumstance in the trunk effectively.
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  • You don’t have to retrieve your cables from the trunk and connect them to your outlet.

How do you hook up the power to a trailer on Tesla Model 3?

Finally, to finish this content page we will fairly quickly describe you how to make the electrical connection of a caravan on your Tesla Model 3 . To do this you will inevitably have to go through one of the previous steps, it’s up to you to choose the one that corresponds to your model and your budget. After you have done this, the last step will be to buy an adapter that goes from a 7-pin plug to a 13-pin plug so that you can benefit from the 12 volt current in your caravan. These adapters come at different prices, you will need to count between 15 and 40 euros. All you have to do is plug it into your 7-pin plug.

If you have any further questions about the Tesla Model 3, do not hesitate to consult our Tesla Model 3 category.