How do you inspect and test alternator output?
How do you inspect and test alternator output? With the engine on:Step 1: Open your hood and so you have clear access to the car battery. Locate your alternator and check to be sure the alternator belt isn't loose.Step 2: Turn your multi-meter to the 20 V setting.Step 3: Start the engine. Step 4: There are two ways to test the voltage coming from the alternator. How do I check the max output of my alternator? Turn on all the electrical equipment in the car: lights, stereo, wipers and everything else you can. Let the engine idle at around 1200...