12V 7 13 Pin European Truck Trailer Camper Van Plug Socket Tester Wiring Circuit Test Tool Car Circuit Tester 13-Way Blade Trailer Sockets

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Type 7 hole at one end of the trailer plug to the end of the tester
Measuring range applies to 7-pin trailer plug socket connector (N type) test (MΩ) (MΩ)
Test voltage 12 (V) (V) Model: TM4003
Origin: Ningbo
Colour: Black
Package Size: 17.5x5x4cm
Package Weight: 0.195KG
Suitable range: Suitable for 7-pin trailer plug socket connector (N type) test

Product Features:
12V connection tester a trailer 7 hole plugs, the other end connected to the car 7 hole outlet. Tester lights will quickly show a trailer or a car coil is connected properly.
Use description:
Trailers (RV can also be used):
7 hole at one end of the trailer plug to the end of the tester
Yellow button is pressed tester side
If the LED lights all light up, indicating that the normal line. Each LED lamp functions as follows
If the LED is not lit, the line is not connected correctly
car
The tester is connected to the car end socket
Yellow button is pressed tester side
If the LED lights all light up, indicating that the normal line.
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. Repeat these two steps can be tested separately right turn signal / fog lights / etc