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Old 09-07-2013, 03:19 PM   #1
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Yeah
That's exactly how to do it .
One at a time and replace after noting the reading .
You should be reading around 20-25 milliamps so if you have a smaller range on your meter it will be fine .
The idea is to find how many mAs your car drains with all doors shut and locked (simulating a parked scenario)
And if it is high enough to flatten your battery you pull one fuse at a time to find out which circuit has a fault causing excessive drain

Last edited by Ian c; 09-07-2013 at 03:24 PM.
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Old 09-07-2013, 03:23 PM   #2
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Thanks for your help.

Before I go check fuses, from what I've seen so far, could the alternator still be good?

Thanks again,
-leo
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Old 09-07-2013, 03:30 PM   #3
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From your first reading yes .
From your second reading no .
but i'm suspecting a bad connection on your leads or the air kicking in or radiator fan coming on .
We can go back to it later ...
A drain check will eliminate a circuit flattening it when parked
And your initial reading with all fuses still in place will determine that
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Old 09-07-2013, 03:33 PM   #4
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I'm trying to do an initial reading with the car off, earth off, and I'm getting 0 milliamperes across the battery. Am I doing something wrong?
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Old 09-07-2013, 03:35 PM   #5
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Quote:
Originally Posted by 3point2 View Post
I'm trying to do an initial reading with the car off, earth off, and I'm getting 0 milliamperes across the battery. Am I doing something wrong?
Yeah you don't go across the battery
Go across the battery ground post and the disconnected battery ground cable
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Old 09-07-2013, 03:39 PM   #6
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You will also need to pull up the rubber near the hoods latch and use a screwdriver or similar to force the latch lever to the right .
It will fool the car that the hood is shut thus turning off the trunk light and enabling you to lock the car and enable the alarm

Last edited by Ian c; 09-07-2013 at 03:42 PM.
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