ABS stands for antilock braking system, and if the ABS warning light is illuminated in your car's gauge cluster, that means the antilock system has been deactivated because of a malfunction. Your car's regular brakes should work fine, but the antilock feature that prevents wheels from locking up during braking will not work. In addition, if your vehicle has stability control and traction control, those will be disabled as well because those systems rely on the same wheel-speed sensors as the antilock system.
If you need to replace your auto battery, always test it before you replace it. Also test the entire electrical system of your car. The reason for your battery problem might be a weak alternator or a drain on the system and if this is the case it won't take many weeks before your have to replace the new one as well. What seems to be a battery problem is not always caused by the battery itself. You can acquire more information about how to repair your car's electrical system on the web.
This auto electric repair tool consists of many parts that help in completing the above functions as efficiently as possible. The engine analyzer has the following built in components: Timing light, Ammeter, Ohmmeter, Vacuum pump and gauge, Oscilloscope, Pressure gauge, Exhaust analyzer etc. All these components can be used in the most common engine types i.e. both diesel and gas powered.
You can also perform the test yourself if you have access to a Battery Load Tester, a device which is made for the purpose. The load tester works by placing a specific amount of electrical load on the battery for a specific amount of time while monitoring the available battery voltage. The battery should be fully charged before the test in order to insure accurate test results.