Battery Indicator Sparkling? Decipher Electrical System Anomalies

One possibility, and usually the most common of course is that the alternator has failed, and you are running on your battery. Yes your car has ... Over time, battery voltage will drop lower and lower and you won't be able to start car. Not battery's fault if it's not being recharged. Get ... ... car is different like with comparing readings from trucks to econo cars. But the car starts fine, headlights are fine, interior lights dont ... The alternator turns on the battery light but If I were you I would replace the light first. Or you can test the light by grounding the brown/ ... Your engine is off, at this point. When your engine is running and your alternator is charging, the voltage from the charging alternator is felt ... Normal because the charging system detects via sensor that the battery is fully charged, and there is light load on the alternator.. so it sets ... ... car -and stays on-, but otherwise the car is running and driving fine. The OBC Voltage (Test 9) shows: 12.3 v with engine off , and 11.6 v ... A battery warning light that stays on while driving indicates that the battery is no longer being charged by the alternator and is running on its own charge. This light should came on only if engine is on but alternator is not charging for whatever reason. This light is actually not idiot at all, the ... I hooked up a voltage meter to the battery with the car off, and it gets a solid 12.5v (fairly newish battery.) With the car running, I tested ...