Cause of fuse blowing

The fuse of Pacific Auto Network may be blown due to excessive current, so it must be stopped for inspection. Automobile fuse is a kind of current fuse. When the circuit current exceeds twice the rated current of the fuse, it will fuse in a few seconds to protect the circuit.

It is often used for overcurrent protection of automobile circuits and industrial equipment.

Generally, there are two fuse boxes in the car. One is responsible for the safety of external electrical appliances of the automobile, such as ECU, glass water, lights, speakers, ABS and other circuits, located in the engine compartment; The other is responsible for the normal work of the electrical appliances in the car, such as cigarette lighters, window lifting, power seats, airbags and so on. , generally located on the left side of the steering wheel. For example, before connecting the ACC power cord, it is necessary to disassemble the fuse box in the car.

Precautions for replacing fuse: 1. The fuse should be replaced according to the rated current indicated on the fuse box cover. Do not use fuses with higher rated current.

2. If the new fuse is blown again immediately, it means that there may be a fault in the circuit system and it should be repaired as soon as possible.

3. There is no spare fuse. In case of emergency, you can replace the fuse on other equipment that does not affect driving and safety.

4. If you can't find a fuse with the same current load, you can use a fuse with a lower rated current than the original fuse.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)