How To Test Car Charging System With Multimeter. How to perform an accurate test of your cars charging system alternator using only a multimeter. Testing a Car Battery With a Multimeter.

The problem could be with your alternator or the voltage regulator. Troubleshoot Your Alternator Charging System in 4 Steps. How to test your charging system with a DVOM.
Inspect belt condition and tension.
Again touch the same location you did. How to use a Multimeter to Test a Car Battery. Then with the engine running gradually increase the electrical load by turning on the headlights and the blower fan. After you turn the multimeter on connect the red probe to the positive terminal of the battery which is usually marked in red color too and then connect the black probe to the negative terminal -.

