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#1
02-21-2015, 02:13 PM
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04 Impala Battery Drain - RT IP #3 fuse is the problem
Ok, so I just put a multimeter between the negative terminal and the battery lead and pulled every fuse one at a time until I found what was causing my battery drain. I came up with RT I/P #3. I guess it stands for Right Instrument Panel. But all the diagrams I look at, it appears the only thing that one circuit powers is the rear defrosters. Does anyone know of a common fix that this circuit would drain the battery fast? (If I let my car sit for 3-5 days, the battery is dead.)
Before I pulled the RT I/P fuse, my car was pulling over 20 mA. As soon as I pulled that fuse, it dropped down to around 0.7 mA. But I guess looking around at other posts, some people say that 20 mA is acceptable. I'm just getting sick of dead batteries. 
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#2
02-21-2015, 03:36 PM
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Re: 04 Impala Battery Drain - RT IP #3 fuse is the problem
I think I found it. I got to thinking RT I/P could be a lot more than the rear defrosters contrary to the schematics. I then thought I hadn't checked the fuses in the passenger door, which is probably where the RT I/P fuse under the hood goes to. I then tested all the fuses there and the radio seems to be the culprit.
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#3
02-21-2015, 04:17 PM
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Re: 04 Impala Battery Drain - RT IP #3 fuse is the problem
Everything I have read 20ma isn't that much to kill a battery in 3-5 days. You can have an alternator that passes the charging test but has a bad diode that will kill a battery with key off.
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#4
02-21-2015, 07:35 PM
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Re: 04 Impala Battery Drain - RT IP #3 fuse is the problem
Well, I went to Best Buy and ordered a new after market radio to replace the factory radio to see if that's the problem. I kind of wanted it anyways. I got one that has bluetooth and aux in on the front of the radio and it should look pretty factory-ish because it's a double din radio. I'm scheduled for them to install it next Friday. Until I'll drive around with the radio's fuse pulled out.
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#6
02-23-2015, 07:29 AM
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Re: 04 Impala Battery Drain - RT IP #3 fuse is the problem
how long did you have the battery before this battery issue started happening. Did you check to make sure the charging system was functioning correctly?
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#7
03-07-2015, 10:17 AM
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Re: 04 Impala Battery Drain - RT IP #3 fuse is the problem
Quote:
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