Battery Power: If the battery in the vehicle still has sufficient charge, the lights may come on when you turn the key to the "ON" position. In this scenario, the battery is providing the necessary electrical power to the lights and other accessories in the vehicle, even though the starter motor is not functioning.
Direct Power Supply: Some vehicles may have a direct power supply from the battery to the lights, bypassing the starter motor. This means that the lights can receive power and turn on regardless of the condition of the starter motor.
Alternator: In vehicles equipped with an alternator, the alternator generates electrical power when the engine is running. However, if the starter motor is dead and the engine is not running, the alternator will not be able to provide power to the lights.
Fuse or Circuit Breaker: A blown fuse or tripped circuit breaker related to the lights or ignition system may prevent the lights from turning on, even if the battery has power.
It is important to note that the specific behavior of the lights when the starter motor is dead can vary between different vehicles and electrical system configurations. If you are unsure about the electrical system of your vehicle or if the lights do not come on when the starter motor is dead, it is best to consult with a qualified automotive professional or refer to the vehicle's owner's manual for specific information.
