What Causes the Battery Light to Illuminate?
1 Answers
The battery light illuminates to alert the driver to promptly check for vehicle malfunctions. If the battery light comes on before starting the car, it indicates that the alternator is not generating electricity and the battery is not charging. If the battery indicator light remains on after the car is started, it means the alternator is not generating electricity. More details about the battery light illumination are as follows: 1. Situations when the battery is low on power: Generally, when the battery is nearly depleted, the driver may notice certain symptoms during driving, such as difficulty starting the car after it has been parked for a few days, increased fuel consumption, and a noticeable increase in the vehicle's load and fuel consumption when using the air conditioning in summer. 2. Alternator malfunction: If the battery light does not turn off after the car is started, it is recommended to visit a repair shop to check the related circuits. The alternator requires the engine to drive it in order to generate electricity, and the connection between the engine and the alternator relies on a belt drive. If the belt is aged, too loose, or slipping, the alternator will lack sufficient power, fail to generate electricity, or generate insufficient electricity. If the belt is functioning normally, the next step is to inspect the wiring for looseness, damage, short circuits, or whether the fuse has blown. If all these are normal, the alternator should then be checked for issues such as excitation, whether the coils are burnt out, or whether the rectifier diodes are damaged. In most cases, if the alternator is faulty, it is usually replaced directly.
