Which Fuse Blown Will Cause the Entire Car to Lose Power?
2 Answers
Blown main fuse will cause the entire car to lose power. Since there are many electronic devices in a car and each electronic device is equipped with an independent fuse, for easier replacement and maintenance in the future, the fuses are concentrated in one place, which is called the fuse box. The fuse box is responsible for transmitting driving information to various parts of the car body and is a key component in the automotive electronic control system. Automobile generator failure: When the engine starts, the battery supplies a strong current to the engine while also powering the ignition system and fuel pump to make the engine run. Circuit problems: Grounding of the body wiring harness or modification of the circuit causes excessive current to burn out the wires. Blown main fuse circuit: Or poor circuit contact leads to this.
I've encountered many cases where a car suddenly loses all power, most of the time it's due to a blown main fuse. It acts like the gatekeeper of the circuit, usually located near the battery or inside the fuse box in the engine compartment, responsible for protecting the entire vehicle's power system. Once a short circuit or overload causes it to blow, the car won't start, lights and audio systems fail, and the entire system shuts down. During troubleshooting, you need to use a multimeter to check voltage or directly inspect the fuse's condition—blackened or broken filament is a bad sign. Simply replace it with a new fuse, but don't bypass it with random wiring, as hidden circuit issues could lead to accidents. Regularly inspect and clean the fuse box to prevent leakage problems, and developing good habits can make your car more durable.
