Battery Losing Its Charge over night - Toyota Yaris Forums

YarisSedan · 05-05-2013, 02:11 AM

Do you have or have acesss to a test light or multi meter. Easiest way to locate the short is disconect the negative battery and introduce your multi meter across the terminal and measure the amperage draw, You probably have something like like half a amp if its killing the battery every night, or if not use your test light and see it it lights up brightly. Then start disconnecting fuses from your fuse box one by one till you see either the light go out or a drop in amperage.

That will isolate the circuit that has the short, if its something non essential such as the cigarette lighter you can leave the fuse out for the time being.

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05-05-2013, 02:11 AM	#2
YarisSedan Drives: 08 Yaris Sedan Join Date: Oct 2008 Location: California - Bay Area Posts: 2,773	Do you have or have acesss to a test light or multi meter. Easiest way to locate the short is disconect the negative battery and introduce your multi meter across the terminal and measure the amperage draw, You probably have something like like half a amp if its killing the battery every night, or if not use your test light and see it it lights up brightly. Then start disconnecting fuses from your fuse box one by one till you see either the light go out or a drop in amperage. That will isolate the circuit that has the short, if its something non essential such as the cigarette lighter you can leave the fuse out for the time being.