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Shenzhen Cartrend Technology Co, Ltd


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Tractor Electrical Tester

Product categories of Tractor Electrical Tester, we are specialized manufacturers from China, Tractor Electrical Tester, Trailer Light Tester suppliers/factory, wholesale high-quality products of Trailer Plug Tester R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!


    • Trailer Plug tool Truck Socket wiring Tester

    Trailer Plug tool Truck Socket wiring Tester

    • Brand: Cartrend

    • Packaging: Carton

    • Model No.: CT0028

    • Place of Origin: China

    • Transportation: Ocean,Land,Air

    7 Pin Car Truck Trailer Plug Socket Tester Wiring Circuit Light Test Tool Diagnostic Tools Black 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 This tester indicates quickly if a failure concerns the wiring of the car or the wiring of the trailer...

China Tractor Electrical Tester Suppliers

This tester can test the trailer socket on the vehicle. It is used to directly test whether the trailer power supply wiring is normal or not. With LED indicators, it can indicate any fault on the wiring of the car or the trailer.

How to test the connection of a Trailer (can also be a caravan or bicycle carrier)
1. Put the plug in the connection of the tester.
2. Press the yellow button on the side of the tester.
3. If the wiring is good, all the LEDs light up. the function of each LED is (acc iso 1724):
left hand indicator (yellow);
fog light or 12V (blue);
mass (white);
right hand indicator (green);
right rear light (brown);
left brake light (red);
left rear light (black).
Attention: The pin no 2 can be used either for a warning fog lamp or a permanent 12V connection.
4. If a LED doesn't light up, it is because the corresponding wire is defective. If all the LEDs don't light up.
1. Put the tester in the socket of the car.
2. Press the yellow button on the side of the tester.
3. If the wiring is good, all the LEDs light up. Do again steps 4 as previous.
You can also test the functions of each pin of the socket.
1. Switch on the left hand indicator (after switching on the ignition key).
2. The corresponding LED must flash with the same frequency. If not, left hand indicator wiring is defective/broken.
3. Repeat steps 1 and 2 for the right hand indicator, rear light, fog light and stoplights.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.

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