Whether you need to move house, go on holiday with a caravan, dispose of green waste, or have a hitch is pretty handy. In this post, we will explain the electrical connection of a trailer hitch of a Alfa Romeo 147 . Indeed, even if the installation procedure is not complex, it is necessary to clarify some points to consider this work without any problem. First of all, we will discover what the electrical wiring harness of your car hitch involves, then, in a second step, how to make the electrical connection of the hitch of a Alfa Romeo 147 .

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What’s the wiring harness for a Alfa Romeo 147 hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Alfa Romeo 147?

So we will start our content by detailing the fundamentals of a wiring harness of a Alfa Romeo 147. In order to figure out how it works, you must previously figure out its necessity. If you have a trailer or a caravan to tow, it is essential and above all mandatory by the highway code to respect certain laws, 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 obligations, you will need to install a wiring harness connection on the hitch trailer of your Alfa Romeo 147 . We will focus on this in this post, if you want to discover how to install the hitch of a Alfa Romeo 147, please discover our content on this topic.

What is the electrical connection of the trailer hitch of a Alfa Romeo 147?

We will now quickly explain how the electrical connection of your hitch works. The connection uses the 12-volt current from your car to power the hitch lights on your Alfa Romeo 147. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Alfa Romeo 147 trailer, 7 pins : This is the traditional plug that will be discovered on all Alfa Romeo 147 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 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 Alfa Romeo 147: This plug system is mainly used for caravans that necessitate 12 volts inside to supply the different 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 motor vehicle is switched on).

How do I hook up the wiring harness of a Alfa Romeo 147?

To end this content, we will quickly explain you how to produce the connection of the wiring harness of your Alfa Romeo 147 .

How to make the connection of the wiring harness of an old Alfa Romeo 147?

To install the wiring harness of an old Alfa Romeo 147, you will have to go and get all the necessary cables in the rear lights of this one. We advise you to call in a car electrician to do this intervention because it is complex, but we will nevertheless summarize the main steps to be accomplished:

  • Remove the trunk lining from your Alfa Romeo 147 to access the rear light unit.
  • Locate 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 Alfa Romeo 147?

For modern Alfa Romeo 147s, the wiring harness is much less complicated to connect:

  • You can use a multiplexable box, you will find specific ones for your Alfa Romeo 147 and universal models. It’s up to you to select according to your budget, know that a universal version costs between 30 and 60 euros.
  • Remove the trunk lining from your Alfa Romeo 147 so that you can route the cables from your box to the front of your Alfa Romeo 147 and connect them to your fuse box.
  • Install the case 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 Alfa Romeo 147?

Finally, to end this content we will quickly explain you how to produce the electrical connection of a caravan on your Alfa Romeo 147 . To achieve this you will automatically have to go through one of the previous steps, it’s up to you to select 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 guides on the Alfa Romeo 147, go to our Alfa Romeo 147 category.