Is there a way to test my [alternator](/topics-alternator...


Is there a way to test my [alternator](/topics-alternator-toyota/) directly for the parasitic draw. I don't have time to wait for sleep mode. If it's the [alternator](/topics-alternator-toyota/) I need to know now so I don't chang...

Is there a way to test my [alternator](/topics-alternator-toyota/) directly for the parasitic draw. I don't have time to wait for sleep mode. If it's the [alternator](/topics-alternator-toyota/) I need to know now so I don't change it for nothing

Automotive Expert
\*\*\*IMPORTANT PLEASE READ\*\*\* THE PHONE CALL REQUEST IS AUTOMATED FROM THE WEBSITE. NOT FROM ME. PLEASE DON'T LET IT ANNOY YOU. YOU HAVE THE OPTION TO IGNORE IT OR ACCEPT IT. Please make sure you've listed the Year, Make, Model, Drivetrain and [Engine](/topics-engine-toyota/) information for your vehicle if you haven't already. Thank You for contacting JustAnswer! Hello I'm Bart. I am an ASE certified Master Technician with over 20 years experience in the Automotive Industry. I'm usually logged in 9-5 Mon-Fri Mountain Time Zone. I take lunch from 12-1p I know it can be frustrating having vehicle problems. I'll do my best to help you. Please understand that I don't know what your skill level is, what tools you have available and I can not physically see what you are doing. If it is more helpful the site automatically offers a premium phone call service where you can talk to me directly or another Expert may call you if you request it. You may accept or decline, but please understand that I may not be able to call right away as I may be helping another customer or researching information related to the problem you are having. If this is an electrical issue please a have voltmeter and 12 volt test lamp ready to use. I would also ask that you tell me what parts you have tried replacing to fix the problem. Doing so will help diagnose the issue faster. If there are any trouble codes please provide them. I'm reading the information you provided to the Mechanic's Assistant. I may request more information or provide an answer momentarily. Just a moment. The easiest way to measure the draw present. Disconnect the alternator. See if the draw reduces.
Automotive Expert
An inductive amp clamp can be used to measure the draw.

Makes sense thanks. I feel like an idiot. Should have thought of that.
Automotive Expert
No worrie.

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