Familiar with automotive relay radio frequency filter switching functions

　　Automotive relay switches are the key to control the circuit through. The main switches in the circuit often gather many wires, such as ignition switch and total light switch. When reading pictures, pay attention to the five issues related to the switch:

　　1 . In many wiring columns of the switch, pay attention to what is the winning power supply. What are the use of electrical appliances. Whether there are wiring symbols next to the wiring column and whether these symbols are common.

　　2 . There are several gears in the switch. In each gear, automotive relay, switch, function, which wiring pillar is powered on. What are the power disconnection.

　　3. What paths do the battery or generator current reach this switch and whether the middle pass through other switches and fuses. Is this switch manual or electrical control.

　　4. Which electrical appliances are controlled by each switch. What is the role and function of the controlled appliances.

　　5. In the charged car electrical appliances. Which electrical appliances are in automotive relays, switches, and acts are often connected, and which circuits are briefly connected. What should be connected first and which should be connected. Which should be working alone. What should be working at the same time. Which electrical appliances are allowed to be connected at the same time.

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