Car Repair Technology Sharing

 Today this car, the owner left it half a month later, and then the ignition would not start. The owner was ready to pay for a tow truck, I said you don't have to call first, I'll show you what's going on, first try to start the vehicle, put the brake on and hang the p-gear, twist the key and no response at all. In this case, there are only two reasons, the battery is dead or the starting system has problems. Let's start with the simple one, turn on the headlights, see the brightness of the headlights, then press the horn and listen to the sound, the headlights of this car are also very bright, the horn sound is also normal, indicating that the battery power is sufficient. That must be the problem of the starting system, next we come to check the starting system, we just need to find a test pen, one end clamped to the negative terminal of the battery, test pen this end to test the power terminal of the magnetic switch, find a small partner to cooperate with the start of...