Just plug the tester in the 7 pin socket or the 7 pin plug of the trailer or caravan and press the yellow button on the side of the tester. This 7 Pin Tester is designed to indicate a failure in the wiring on both towing vehicles and trailers/caravans etc.
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Thermoplastic housing and nickle plated pins, suitable for trailer use. Thermoplastic housing and nickle plated pins, suitable for trailer use. This is a plastic 3 pin trailer plug to power trailer lights.
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This lead has a 13 pin male plugs on both ends to go from the front of a trailer to the car. Trailer extension lead (13 pin plug to 13 pin plug). Suitable for all trailers with a female plug on the front of the trailer for example on Ifor Williams trailers where they normally have a socket attached to the front of the trailer.
eBay
10Pcs Trailer Plug Connector. Qty: 10Pcs. This is a 12V trailer connector plug. It supplies power to your caravan, towing and truck. This 12V trailer plug connector with 7 pins is a great option for boats and it is also great to be used on an RV, caravan, etc.
eBay
Upgrade your towing setup with thisheavy-duty 7-pin 12V trailer plug connector, perfect for connecting your trailer or caravan to your vehicle safely and efficiently. 🔌 Heavy Duty 7-Pin 12V Trailer Towing Plug – Aluminum Alloy Wiring Connector Socket – EU Standard.
eBay
This lead has a 13 pin male plugs on both ends to go from the front of a trailer to the car. Trailer extension lead (13 pin plug to 13 pin plug). Suitable for all trailers with a female plug on the front of the trailer for example on Ifor Williams trailers where they normally have a socket attached to the front of the trailer.
eBay
Test every car every pin socket functions: open the left turn signal, the tester Yellow No. 1 indicator will light up if the LED is not lit, the line connection error or a bad line. This tester has one side to connect the 7-pins plug of a trailer and another side to connect the 7-pins socket of a car.
eBay
This is a 12V trailer connector plug. It supplies power to your caravan, towing and truck. This 12V trailer plug connector with 7 pins is a great option for boats and it is also great to be used on an RV, caravan, etc.
eBay