Скачать с ютуб 8 Culprits Your Battery Light On but Alternator is Charging | How to Fix Battery Light On Dashboard в хорошем качестве

8 Culprits Your Battery Light On but Alternator is Charging | How to Fix Battery Light On Dashboard

Have you ever been met with the dreaded battery light on your dashboard, even though your alternator seems fine? You're not alone! This video dives deep into the 7 most common reasons why your battery light stays on, even with a functioning alternator. Understanding the Battery Light The battery light, also known as the charging system light, works directly with the alternator and battery. It essentially indicates whether the alternator is providing enough current to charge the battery while the engine is running. Normally, it should light up briefly upon startup and then turn off once the alternator takes over. However, a persistent battery light signifies a voltage difference between the battery and alternator, pointing to potential issues. Top Reasons for a Battery Light That Won't Turn Off Loose or Corroded Battery Connections: Over time, battery terminals can develop corrosion or loosen, causing poor electrical connection. This voltage drop can prevent sufficient current flow and trigger the battery light. Check for loose connections and measure voltage using a multimeter. Bad Wiring or Terminals on the Alternator: Inspect the alternator for signs of corrosion, looseness, or damage on its terminals. Ensure the wires are not burnt or broken. You can also use a multimeter to measure the alternator's voltage output while the engine is running. Bad Battery: A weak or old battery won't hold a charge, causing the alternator to work harder. Look for signs of a swollen or cracked battery case, or a sulfuric acid odor. Faulty Alternator Diode: The diode regulates current flow. A bad diode allows current to flow from the battery to the alternator when the engine is off, draining the battery and turning on the light. Test the diode using a multimeter in diode test mode. Grounding Issues: Corroded or loose ground connections can cause voltage drops and illuminate the battery light. Check your engine ground connections for tightness and corrosion. Incorrect Alternator Amperage: If you've added power-hungry accessories like loudspeakers or extra lights, your alternator might not be able to handle the increased electrical load. Consider upgrading to a higher amperage alternator. Blown Fuses: A blown fuse in the junction box connected to the alternator's B terminal can prevent the battery from charging, triggering the light. Broken Serpentine Belt: The serpentine belt drives the alternator. A loose, worn, or broken belt can hinder the alternator's rotation, affecting its ability to charge the battery and causing the light to turn on. Get Your Battery Light Fixed Today! If your battery light remains on, don't ignore it! By understanding the common causes and following the steps in this video, you can diagnose the problem and get your car back in top shape. If you have any questions, leave a comment below! Don't forget to like this video and subscribe to our channel for more auto repair tips! #batterylight #alternator #chargingproblems #carrepair Timecode: 00:00:00 - Introduction 00:00:08 - Common reasons battery light stays on 00:00:20 - Battery light and alternator function 00:00:36 - Voltage difference indication 00:00:53 - Common causes of battery light 00:01:00 - Loose or corroded battery connections 00:01:09 - Impact of loose battery connections 00:01:17 - Corroded battery terminals effect 00:01:32 - Voltage drop due to resistance 00:01:42 - Checking battery terminal connections 00:01:47 - Testing battery terminal resistance 00:02:00 - Bad wiring and alternator terminals 00:02:07 - Alternator terminal functions 00:02:17 - Alternator voltage regulation 00:02:22 - Battery warning light connection 00:02:30 - Alternator ground connection 00:02:41 - Inspect alternator terminals 00:02:47 - Signs of bad alternator connections 00:03:01 - Measuring alternator voltage output 00:03:17 - Voltage comparison test 00:03:22 - Voltage drop test 00:03:38 - Bad battery 00:03:46 - Effects of a bad battery 00:04:02 - Bad alternator diode 00:04:07 - Diode function and testing 00:04:17 - Impact of bad diode 00:04:22 - Testing alternator diode 00:04:37 - Grounding issues 00:04:41 - Checking electrical system grounds 00:04:49 - Testing ground connections 00:05:03 - Inspect engine ground connections 00:05:09 - Wrong amperage rating of alternator 00:05:14 - Electrical strain from accessories 00:05:18 - Choosing the right alternator 00:05:28 - Blown fuses 00:05:33 - Impact of blown fuses 00:05:42 - Broken serpentine belt 00:05:46 - Checking serpentine belt condition 00:05:59 - Comment and subscribe encouragement 00:06:07 - Conclusion and thanks