2007 Prius auxiliary battery drains in two days. Replaced battery and still same problem. Seems to be related to fuse number 39, which started blowing at times when the battery problem first occurred. Battery seems to hold charge if I leave the fuse out. When fuse is in everything fed through the fuse (according to the owners manual) seems to work normally. What could be behind the fuse that would drain a new battery in 48 hours parked. If I drive the car every day there is no problem.
SOURCE: Half the elctrics don't work since jump starting the car.
Sent you two .pdfs this morning; they should help you out. Thanks for choosing FixYa!
SOURCE: battery is drain very fast if leave it for one day
first check the simple things like are all the cabin lights out its very unusual for this type of car to have elec problems
SOURCE: 1998 Avalon XLS battery drain
Does The car shut off mid drive? Could be a Wiring harness problem,
I think it's you're alternator though, That would be a good reason you're battery is dieing,
How do you get the car started again?
SOURCE: the battery was drained and changed to a brand new
CHECK THE ALTERNATOR , ONE MORE TIME. AND IF ITS GOOD THE PROBLEM WILL BE IN THE FUSEBOX IN MOST OF THE TIMES
SOURCE: I have a 1998 Toyata camry. The fuse for the power
start with the alternator then test the battery and charging system. a low voltage issue could cause a lot of problems that will increase amperage and cause blown fuses.
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