Car Battery Check Engine Light

The check engine light is an important warning light on your car’s dashboard. It can indicate a variety of problems, including a failing battery. Here are some tips on how to check your car battery and determine if it is the cause of your check engine light.

Symptoms of a Failing Battery

There are several symptoms that can indicate a failing battery, including:

Dim headlights
Slow engine cranking
Difficulty starting the car
Check engine light

How to Check Your Battery

There are several ways to check your car battery, including:

Visual Inspection

The first step is to visually inspect your battery. Look for any signs of damage, such as cracks or leaks. Also, check the terminals for corrosion or loose connections.

Voltage Test

You can use a multimeter to test the voltage of your battery. The voltage should be between 12.6 and 12.8 volts when the engine is off. When the engine is running, the voltage should be between 13.5 and 14.5 volts.

Load Test

A load test can be used to determine the battery’s ability to provide power under a load. To perform a load test, you will need a battery load tester. Connect the load tester to the battery and turn it on. The load tester will draw a load from the battery and measure the voltage. The battery should be able to maintain a voltage of at least 10.5 volts under load.

If Your Battery is Failing

If your battery is failing, you will need to replace it. You can purchase a new battery at your local auto parts store or online. When replacing your battery, be sure to get the correct size and type of battery for your car.