How can I find out a bad relay that causes the battery drain out overnight?

Asked by Apr 16, 2015 at 01:07 AM about the 2003 Toyota Corolla CE

Question type: Maintenance & Repair

2 Answers

140

Take out suspect relay, measure resitance with multimeter then check against normal value. Repeat

1 out of 1 people think this is helpful.
146,325

That's a good procedure above by Bv. But how do you know it's a relay?

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