- *Weak Battery:* If your car battery is old or weak, it may not be able to provide enough power to run the headlights and other electrical components simultaneously. As a result, the engine may stall or cut off when the headlights are turned on.
- *Alternator Issue:* The alternator is responsible for charging the battery and providing power to the electrical system when the engine is running. If the alternator is not functioning properly, it may not be able to generate enough power to support the additional load of the headlights, causing the engine to cut off.
- *Faulty Wiring:* Damaged or loose wiring can also cause power issues and lead to the engine cutting off. Check the wiring connections between the battery, alternator, and headlights to ensure they are secure and in good condition.
- *Electrical Overdraw:* If there is an excessive electrical draw on the system, such as a short circuit or a faulty component, it can overload the electrical system and cause the engine to stall or cut off.
- *Headlight Switch Problem:* A malfunctioning headlight switch can also cause the headlights to draw too much power, overloading the electrical system and leading to an engine cut-off.
It's important to have your car inspected by a qualified mechanic to determine the exact cause of the issue and ensure safe and reliable operation of your vehicle.