If you need to move house, go on holiday with a caravan, get rid of of green waste, or have a hitch is fairly handy. On this page, we will describe the electrical connection of a trailer hitch of a smart fortwo . In actual fact, even if the set up process is not difficult, it is necessary to clarify some details to consider this task without any problem. First of all, we will discover what the electrical wiring harness of your motor vehicle hitch involves, then, in a second step, how to make the electrical connection of the hitch of a smart fortwo .

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What’s the wiring harness for a smart fortwo hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a smart fortwo?

So we will commence our content by detailing the fundamentals of a wiring harness of a smart fortwo. In order to discover how it functions, you must previously discover its necessity. Whether you have a trailer or a caravan to tow, it is important and earlier all mandatory by the highway code to follow certain requirements, 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 meet all the electrical regulations, you will need to install a wiring harness connection on the hitch trailer of your smart fortwo . We will focus on this in this article, if you want to discover how to install the hitch of a smart fortwo, please discover our content on this topic.

What is the electrical connection of the trailer hitch of a smart fortwo?

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

  • The 7-pin electric plug for a smart fortwo trailer, 7 pins : This is the classic plug that will be identified on all smart fortwo hitches. This electrical connection will enable you to transmit all the lighting functions needed for the rear signalling of your trailer, you will find a plug for each objective (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 smart fortwo: This plug system is specifically used for caravans that necessitate 12 volts inside to supply the various electrical gear in the cabin. This kind of connection requires 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 smart fortwo?

To finish this content, we will quickly describe you how to produce the connection of the wiring harness of your smart fortwo .

How to make the connection of the wiring harness of an old smart fortwo?

To install the wiring harness of an old smart fortwo, you will have to go and get all the necessary cables in the rear lights of this one. We suggest you to call in a motor vehicle electrician for this intervention because it is difficult, but we will nevertheless summarize the most important steps to be accomplished:

  • Remove the trunk lining from your smart fortwo 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 smart fortwo?

For recent smart fortwos, the wiring harness is much easier to connect:

  • You can use a multiplexable box, you will find specific ones for your smart fortwo 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 smart fortwo so that you can route the cables from your box to the front of your smart fortwo and connect them to your fuse box.
  • Install the circumstance in the trunk properly.
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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 smart fortwo?

Finally, to finish this content we will quickly describe you how to produce the electrical connection of a caravan on your smart fortwo . To achieve 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 want more tutorials on the smart fortwo, go to our smart fortwo category.