What are the symptoms of a blown fuse?
2 Answers
When a car fuse blows, it can cause the car battery to have power but fail to start. Below is more detailed information about car fuses: 1. Function: In automotive circuits, many electrical devices are connected by wires of different colors, among which the fuse is the most crucial component. The term 'fuse' is a conventional name, while the national standard refers to it as a 'circuit breaker'. The role of a fuse is to protect the circuit (wiring) and electrical equipment. 2. Parameters: Fuses have two key parameters—one is the rated current, and the other is the rated voltage. When selecting a fuse, it's essential to choose the appropriate specification based on these current and voltage ratings. 3. Classification: Automotive fuses are divided into high-current fuses and medium-low current fuses. Generally, medium-low current fuses are more common in vehicles, which are further categorized into blade-type fuses, bolt-type fuses, screw-type fuses, and tubular fuses. Among these, the medium and small fast-acting blade-type fuses are the most frequently encountered.
Last time my car's cigarette lighter suddenly stopped charging, and I realized it was a blown fuse. This little thing acts like a safety guard—when the current gets too high, it sacrifices itself. The most common symptom is a specific electrical component failing outright—like power windows not moving, reading lights not turning on, or reverse sensors malfunctioning. If a warning light pops up on your dashboard, don’t panic—check the fuse box first. I keep spare fuses of different amperages on hand; when I spot a blown one, I just pull it out and replace it. You can actually see the broken metal filament inside the transparent casing. Remember, never try to jury-rig it with copper wire—my neighbor did that once and fried the car’s computer, and the repair bill could’ve bought ten years’ worth of fuses.
