What is the method of using the test lamp

The car test light is used to test the car inspection circuit. There are two wires on the test light, regardless of the positive and negative poles. Mainly connect one end to the positive pole and the other end to the negative pole. If the circuit is abnormal, the bulb will not light up.

　　

A general test lamp has two wires connected to a small light bulb. Some of the test lamp wires will be tied with an iron wire or steel needle, and the head of the test lamp wire will be sharpened so that it can pierce the wire harness or electric wire. When using the test lamp to test the circuit, it may also be accompanied by the tester to check the car. When using the tester, first confirm that the vehicle to be tested is unloaded, only one person can be in the cab, and the tires must be fully inflated. , the battery should also be reconditioned, the headlights should be in the correct position and there should be no dust on the glass. Then the parking position of the vehicle on the north side shall be based on the base point of the front headlight, and there must be a distance of 1 meter from the light receiving box of the detector. Finally, it is necessary to confirm that the vehicle is in the right position, and the light-receiving image is rotated to the vertical dividing line where the two lights selected by a straight line are more than 1 meter apart.