![]() ![]() Your mechanic should provide you with fuse options. If you have a defective fuse, the only choice is a replacement. The alternator’s fuse might be blown, or the connector is defective due to a break or short during its installation or start-up. SolutionĬheck the control plugs to ensure tight connections. In that case, the battery light could stay on. Suppose the connection with either the control plug AKA relay plug-in, charge line connection, or the ground for the alternator is faulty or loose. However, if it is broken or cracked, you’ll need to get a replacement. If the alternator belt is misaligned, too tight, or too loose, you can easily adjust it. However, if cracked or broken due to continuous use or age, the battery light might come on.Īlso, if the belt is misaligned, not well fitted, or too tight, the light can come on.īesides the battery light, if the alternator belt is faulty, the car’s hood might squeal when the vehicle is running. The alternator belt connects multiple components. The dissolution of one part of baking soda in one part of water creates an alkaline solution that disintegrates the corrosion. If you notice a white, blue, or green colored gunk on your battery terminals, this is corrosion, and you can get rid of it with baking soda and a soft brush. After changing a new battery, car owners often neglect cleaning the terminal connectors and the charging circuits, which lead to corrosion and poor conductivity of electricity. Corroded Battery TerminalsĬorroded terminals make poor electrical conductors. If a battery connection is made well, you shouldn’t twist or rotate the end of the cable by hand around the battery post.Īlso, if any wiring is damaged, replace it with new wires, and the light should come off. SolutionĬheck for loose or poorly fitted wires, cables, and connections on both the battery and alternator. In that case, the car’s battery light will come on until this is fixed. ![]() Let’s suppose the connector is loose between terminals due to either a failure to tighten the terminal connector appropriately or a break or disconnection due to age. Your car’s electric charging system involves a lot of wires and cables. However, most of them have to do with a battery or alternator failure. There are many reasons the battery light could come on in a car. Reasons Why Battery Light Is Still On After Changing The Battery And Alternator Today, we’ll look into why your battery light is on even after replacing the battery and alternator. One of these signals is the red battery light sign. It’s essential to pay attention to the signals your car sends you when driving. When something isn’t right with your car, a proper control light will often appear on the dashboard.
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