Car Battery Died Now Check Engine Light On

If your car battery has died and now the check engine light is on, there are a few possible causes. Let’s take a closer look at them:

1. The battery is not providing enough power

When your car battery dies, it can cause a loss of power to the vehicle’s electrical system. This can lead to the check engine light coming on, as the computer is not able to properly monitor the engine’s performance.

To fix this, you will need to replace the car battery. Once the new battery is installed, the check engine light should turn off.

2. The alternator is not working properly

The alternator is responsible for charging the battery. If the alternator is not working properly, it can cause the battery to die and the check engine light to come on.

To fix this, you will need to have the alternator tested and replaced if necessary.

3. There is a problem with the engine

In some cases, a dead battery and a check engine light can be caused by a problem with the engine. This could be due to a variety of issues, such as a faulty sensor or a problem with the fuel system.

To fix this, you will need to have the engine diagnosed by a qualified mechanic.

In some cases, the check engine light may come on after the battery has died, but it is not actually related to the battery. This could be due to a coincidence, or it could be due to a separate issue that is unrelated to the battery.

To determine if the check engine light is related to the battery, you can try the following:

Turn off the engine and wait a few minutes.
Restart the engine.
If the check engine light turns off, it is likely that it was caused by the battery.
If the check engine light stays on, it is likely that it is caused by another issue.

Conclusion

If your car battery has died and now the check engine light is on, there are a few possible causes. The most likely cause is that the battery is not providing enough power. However, it is also possible that the alternator is not working properly, there is a problem with the engine, or the check engine light is not related to the battery.

If you are not sure what the cause is, it is best to have the vehicle diagnosed by a qualified mechanic.