??? are you certain its that ??? that fuse will most likely control all the power in the fuse box and the 3.5 amp you see that's called the parasitic draw will most likely be that of the cars computer..
3.5 amp wont drain a battery over night nor in a week i'm assuming you have at least a 500CCA battery here.
battery's don't drain like that, they do loose power once they have a bad cell, or the battery water is low. I'm assuming you had it tested here by a technician from the battery shop and that's what they told you and its a new battery or relatively new..
to test this your self you can take the battery out of the vehicle and leave it outside over night, you will see the power is drained out and it wasn't connected to anything. Thats because of the bad cell..
To prove it to them, Remove the caps If its not a sealed maintenance free one and you will see bubble coming out of the bad cell once the car is idling.. (don't inhale the fumes or let it get in your eyes)
Should not be a draw on battery of more than 30 or 40 milliamps
well i have seen cpus pull up to 7 amps especially on the BMW's and other high profile cars, and I've seen alarm systems pulling the same. in any case lets go with your values here.. connect your volt meter to get the drain. with it connected Pull fuses 1 at a time until the drian lowers or stops.. once you have the fuse out where the drain stops you will have your cause there.
oh i forgot to mention, disconnect your alarm system first. if you had one installed externally.
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SOURCE: no power to widows or mirror or door locks
I have All you need just all to large to send through thif little space Email me with my nickcame at aol.com
SOURCE: 1996 GRAND CHEROKEE BATTERY DRAWING 400 MILLIAMPS
Pretty good chance that your 50A fuse feeds the fuse block inside the car. To test, pull the fuse & check fuse block for power. If I'm right, then start by replacing main fuse and pulling individual fuses on block, till draw disappears. then check which system that fuse feeds. most common: glovebox light lid not closed all the way or interior light malfunction. However, control modules can give similar results.
SOURCE: large 20amp fuse keeps blowing
Change the fuse for the correct size AMP.
More details about Power Center Distribution, check the Section 8W Wiring Diagrams
Good luck.
SOURCE: Interior lights remain on after doors are closed
Check to be sure interior lights are turn off when you are in the vehical.If so check the interior light switches on the doors for proper opperation.
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