Whether you need to move house, go on holiday with a caravan, get rid of of green waste, or have a hitch is pretty handy. On this page, we will explain the electrical connection of a trailer hitch of a Alfa Romeo 156 . Indeed, even if the set up procedure is not complex, it is required to explain some points to consider this work without any problem. Firstly, we will find out 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 Alfa Romeo 156 .

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What’s the wiring harness for a Alfa Romeo 156 hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Alfa Romeo 156?

So we will start our content by explaining the principles of a wiring harness of a Alfa Romeo 156. In order to understand how it functions, you must previously understand its necessity. If you have a trailer or a caravan to tow, it is fundamental and above all mandatory by the highway code to respect certain rules, 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 obligations, you will need to install a wiring harness connection on the hitch trailer of your Alfa Romeo 156 . We will look into this in this article, if you want to learn how to install the hitch of a Alfa Romeo 156, please find out our content on this topic.

What is the electrical connection of the trailer hitch of a Alfa Romeo 156?

We will now fairly quickly explain 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 Alfa Romeo 156. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Alfa Romeo 156 trailer, 7 pins : This is the classic plug that will be discovered on all Alfa Romeo 156 hitches. This electrical connection will allow you to transmit all the lighting functions necessary for the rear signalling of your trailer, you will discover 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 Alfa Romeo 156: This plug system is principally used for caravans that require 12 volts inside to supply the various electrical gear in the cabin. This sort 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 Alfa Romeo 156?

To finish this content, we will fairly quickly explain you how to make the connection of the wiring harness of your Alfa Romeo 156 .

How to make the connection of the wiring harness of an old Alfa Romeo 156?

To install the wiring harness of an old Alfa Romeo 156, you will have to go and get all the required cables in the rear lights of this one. We suggest you to call in a car electrician to do this intervention because it is complex, but we will nevertheless summarize the most important steps to be carried out:

  • Remove the trunk lining from your Alfa Romeo 156 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 Alfa Romeo 156?

For modern Alfa Romeo 156s, the wiring harness is much simpler to connect:

  • You can use a multiplexable box, you will discover specific ones for your Alfa Romeo 156 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 156 so that you can route the cables from your box to the front of your Alfa Romeo 156 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 Alfa Romeo 156?

Finally, to finish this content we will fairly quickly explain you how to make the electrical connection of a caravan on your Alfa Romeo 156 . To achieve this you will inevitably have to go through one of the previous steps, it’s up to you to select the one that means 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 additional questions about the Alfa Romeo 156, do not hesitate to consult our Alfa Romeo 156 category.