What Causes the Cigarette Lighter to Have No Power?
3 Answers
Reasons why the cigarette lighter in a vehicle has no power include: loose connection of the cigarette lighter socket, malfunction of the lighter itself, or a blown fuse of the cigarette lighter. Methods to repair the cigarette lighter: Loose connection of the cigarette lighter socket: Use a small knife blade to slightly pry the internal metal piece to ensure a tight fit. Malfunction of the lighter itself: Simply replace it with a new one. Blown fuse of the cigarette lighter: The cigarette lighter fuse is usually located in the fuse box in the cabin. The cover of the fuse box typically has numbers and functions corresponding to each fuse. Car owners can easily find the cigarette lighter fuse by referring to the instructions on the fuse box cover and replace it themselves. Function of the cigarette lighter: The cigarette lighter is a component found in all cars, designed to provide a convenient fire source for drivers who smoke. A cigarette lighter is essentially a device used to light cigarettes. Some manufacturers produce cigarette lighters not for lighting cigarettes but for drawing power from the vehicle. The power voltage of the cigarette lighter is 12 volts, consistent with the vehicle's battery voltage.
I just experienced the cigarette lighter not working recently. The most common cause is a blown fuse, since the cigarette lighter circuit is particularly prone to overload. For example, plugging in a phone charger or car vacuum cleaner with high power may blow the fuse. You'll need to check the car's fuse box, usually located under the steering wheel or in the engine compartment, find the fuse labeled for the cigarette lighter, gently pull it out and check if the metal wire inside is broken. Just replace it with a new fuse of the same specification. If that doesn't work, the socket itself might be damaged, such as a loose internal spring or blocked by debris - try cleaning it or have a mechanic replace the socket. Additionally, poor contact or aging wiring can also cause power failure. It's recommended not to plug in too many devices to preserve battery life. Safety first - if you notice any issues, address them promptly.
The sudden loss of power in the cigarette lighter is most likely due to a blown fuse. In the circuit design, there's a small fuse that sacrifices itself to protect the system when the current overloads. First, open the fuse box, locate the fuse labeled for the cigarette lighter near the driver's knee position or by the engine, carefully pull it out with nail clippers to inspect, and replace it with a 15A or 20A spare if it's blown. If the fuse is intact, the issue might be oxidation on the cigarette lighter socket contacts—clean the inside with a cotton swab dipped in alcohol. Sometimes, a short circuit or broken wire can be more troublesome, requiring a voltage test. It's recommended to regularly maintain the socket and avoid using low-quality adapters to prevent fire hazards.
