Whether you need to move house, go on vacation with a caravan, get rid of 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 GMC Savana . In fact, even if the set up process is not complex, it is necessary to clarify some details to consider this task without any problem. Firstly, we will see 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 GMC Savana .


What’s the wiring harness for a GMC Savana hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a GMC Savana?

So we will start our article by detailing the basics of a wiring harness of a GMC Savana. In order to understand how it works, you must previously understand its necessity. If you have a trailer or a caravan to tow, it is necessary 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 satisfy all the electrical obligations, you will need to install a wiring harness connection on the hitch trailer of your GMC Savana . We will look into this in this article, if you want to find out how to install the hitch of a GMC Savana, please see our article on this topic.

What is the electrical connection of the trailer hitch of a GMC Savana?

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

  • The 7-pin electric plug for a GMC Savana trailer, 7 pins : This is the traditional plug that will be located on all GMC Savana 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 GMC Savana: This plug system is mainly used for caravans that necessitate 12 volts inside to supply the different electrical equipment in the cabin. This kind of connection needs 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 GMC Savana?

To finish this article, we will quickly explain you how to make the connection of the wiring harness of your GMC Savana .

How to make the connection of the wiring harness of an old GMC Savana?

To mount the wiring harness of an old GMC Savana, 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 motor vehicle electrician to do this intervention because it is complex, but we will nevertheless summarize the main steps to be accomplished:

  • Take out the trunk lining from your GMC Savana to access the rear light unit.
  • Find 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 GMC Savana?

For recent GMC Savanas, the wiring harness is much less complicated to connect:

  • You can use a multiplexable box, you will find specific ones for your GMC Savana 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.
  • Take out the trunk lining from your GMC Savana so that you can route the cables from your box to the front of your GMC Savana 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 GMC Savana?

Finally, to finish this article we will quickly explain you how to make the electrical connection of a caravan on your GMC Savana . 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.

In the event that you have any additional questions about the GMC Savana, do not hesitate to consult our GMC Savana category.