What to Do When the Car Cigarette Lighter Has No Power?
2 Answers
When the car cigarette lighter has no power, you can first borrow someone else's cigarette lighter to try connecting. If it works, then the issue is with the lighter itself, and it can be directly replaced. Another reason could be a blown fuse in the cigarette lighter, which can be fixed by replacing the fuse. Reasons why the cigarette lighter has no power: 1. First, check if the cigarette lighter itself has no power by testing it with the original car lighter; 2. If the cigarette lighter has power but the car charger doesn't, it means the car charger is faulty and needs to be replaced; 3. Additionally, when drawing power from the cigarette lighter, if using an inverter, avoid using appliances that exceed 120 watts, as this could blow the cigarette lighter's fuse. Originally, the primary function of the car cigarette lighter was for lighting cigarettes, but now the cigarette lighter socket has another role, which is charging. Nowadays, cigarette lighter sockets are commonly used for converting to USB power, powering dash cams, and supplying power to car refrigerators.
The cigarette lighter isn't working, and I've encountered this issue several times. Start by checking the simple things first. See if the plug is inserted properly—sometimes it's just loose contact causing the problem. If there's no response after plugging in, inspect the fuse box, usually located under the driver's seat or in the engine compartment. Find the corresponding fuse for the cigarette lighter, pull it out, and check if it's blown. If it is, replace it with a new fuse of the same amperage. If the fuse is fine, the issue might be dust or oxidation inside the cigarette lighter socket—try cleaning it. If the problem persists, test the voltage—using a multimeter is ideal—to see if the input voltage is normal. If it's abnormal, there could be a short circuit in the wiring or an issue with the vehicle's alternator. Lastly, don't force it—if none of these steps work, just drive to a repair shop to get it fixed, to avoid affecting phone charging or navigation on the road.
