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post #1 of 5 (permalink) Old 12-27-17, 08:26 AM Thread Starter
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2011 Ranger - Parasitic Drain - SJB??

Hello all,

I have a 2011 Ranger 4wd, with a parasitic drain somewhere.

I think it's the SJB (passenger compartment fuse 11) and I don't know what that works out to be.

Any insights? I'm not even sure what the "Smart Junction Box" is, let alone why it's drawing amperage when nothing is happening.

Thanks,
~Jeff

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post #2 of 5 (permalink) Old 12-27-17, 08:41 AM
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Re: 2011 Ranger - Parasitic Drain - SJB??

The draw is usually somewhat high when the key is first turned off and drops after 30 minutes or more.

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post #3 of 5 (permalink) Old 12-27-17, 08:48 AM
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Re: 2011 Ranger - Parasitic Drain - SJB??

Parasitics are a pain. Here's one method for chasing them:

https://www.wikihow.com/Find-a-Parasitic-Battery-Drain

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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post #4 of 5 (permalink) Old 12-27-17, 09:22 AM Thread Starter
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Re: 2011 Ranger - Parasitic Drain - SJB??

So does anyone have any idea what a normal draw should be on a Ranger?
Mine is a 2011, but I'll if anyone has anything close, I'd love to hear it...

~Jeff
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post #5 of 5 (permalink) Old 12-27-17, 05:59 PM
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Re: 2011 Ranger - Parasitic Drain - SJB??

50-85 mA once all the modules go to sleep.

Ever notice that there's so many high performance parts available for GM products?

Did you ever think that maybe they NEED them?
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