If 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 describe the electrical connection of a trailer hitch of a Opel Astra . In truth, regardless if the set up process is not complex, it is required to explain some details to consider this intervention without any issue. Firstly, we will see what the electrical wiring harness of your motor vehicle hitch consists of, then, in a second step, how to make the electrical connection of the hitch of a Opel Astra .

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What’s the wiring harness for a Opel Astra hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Opel Astra?

So we will commence our content by explaining the principles of a wiring harness of a Opel Astra. In order to understand how it functions, you must already understand its necessity. If you have a trailer or a caravan to tow, it is fundamental and earlier all mandatory by the highway code to follow 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 meet all the electrical regulations, you will need to install a wiring harness connection on the hitch trailer of your Opel Astra . We will look into this in this post, if you want to find out how to install the hitch of a Opel Astra, please see our content on this theme.

What is the electrical connection of the trailer hitch of a Opel Astra?

We will now fairly 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 Opel Astra. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Opel Astra trailer, 7 pins : This is the traditional plug that will be identified on all Opel Astra hitches. This electrical connection will enable you to transmit all the lighting functions necessary 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 Opel Astra: This plug system is mainly used for caravans that involve 12 volts inside to supply the various electrical equipment 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 Opel Astra?

To end this content, we will fairly quickly describe you how to make the connection of the wiring harness of your Opel Astra .

How to make the connection of the wiring harness of an old Opel Astra?

To mount the wiring harness of an old Opel Astra, you will have to go and get all the required 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 most important steps to be accomplished:

  • Remove the trunk lining from your Opel Astra 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 Opel Astra?

For new Opel Astras, the wiring harness is much simpler to connect:

  • You can use a multiplexable box, you will find specific ones for your Opel Astra 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 Opel Astra so that you can route the cables from your box to the front of your Opel Astra and connect them to your fuse box.
  • Install the case 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 Opel Astra?

Finally, to end this content we will fairly quickly describe you how to make the electrical connection of a caravan on your Opel Astra . 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 further questions about the Opel Astra, do not hesitate to consult our Opel Astra category.