Why does my battery light come on when I turn the key?
The battery light and the other warning lights should come on when you turn the key to the on position before you start the car. This is a bulb check function and is normal. But when the engine starts, the lights will go out as soon as the alternator starts producing sufficient charging voltage.
How does the ignition light work?
The ignition warning light, sometimes known as the no-charge light, is one of the most important lights on your dashboard . It warns you when the car’s generator is not charging the battery . A typical circuit has the warning light wired directly to a terminal at the rear of the alternator.
How does a charge indicator light work?
(ED: The ignition light is used to tell when a generator (or alternator) is charging the battery. When the light is on, it means that you are running off the battery or discharging the battery. When the output of the generator is lower than the voltage of the battery, the light will be on.
What does it mean when the ignition light comes on?
What the ignition switch warning light means. It could indicate an issue with the ignition switch or show that there is a problem with the key being used. An issue with the ignition switch is usually mechanical and it would prevent the key from turning.
What causes the alternator light to come on?
An illuminated battery light could be due to a number of issues, including: A loose or corroded battery cable. A problem with the alternator or voltage regulator. Damaged cells or plates inside the battery.
What causes no ignition, or dash lights when turning key?
Q: I have no ignition, or dash lights when turning key. All relays and battery are fine. Dash lights work when headlights are on. I’m thinking its some kind of electrical problem. I got it to start one time with the remote start. After that, nothing. I’ve tried jump box to be sure I have power.
When does the charge indicator light come on?
Checking further into charge light indicators, in some cases it is normal for the charge indicator light to come on when nothing is wrong with the alternator. According to information published by GM, any car may have a low voltage reading or lights that dim when electrical loads are heavy at idle.
Where does the ignition warning light come from?
The wire runs from the alternator through the bulkhead and up to the warning light mounted in the dashboard. From here it runs to the ignition/starter switch. In general, if the charging system is working normally, the warning light should glow when the ignition is switched on and then extinguish when the engine is started.
What happens if you have an incorrect ignition code?
The chip in the key transmits a specific code, of which there are millions. If this code matches the ones programmed into the vehicle, engine starting is enabled. An incorrect key code, such as from an unprogrammed key or damaged key, would prevent engine starting. Code “confusion,” such as having multiple keys can also occur, preventing ignition.