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      06-24-2021, 03:52 PM   #2684
dogbone
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Drives: '09 E90 M3 - IB
Join Date: Feb 2012
Location: 93 million miles from the Sun

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2009 BMW E92 M3  [0.00]
2009 BMW E90 M3  [0.00]
Quote:
Originally Posted by rhyary View Post
So why is there a battery issue?
It's not a battery issue exactly. The battery is generically fine. The problem is that the AIM Solo 2 DL turns on ANY TIME it sniffs any CAN activity----even when the engine is off. So, you could return from a session, turn the engine off, turn off the unit, and then a couple minutes later, the unit will sniff some CAN activity and then turn itself on while you are away from the car. The unit will stay on for long periods of time which blasts the battery. You return to the car to drive 1-2 hours later and the unit has been on for most of that time......the battery is mostly drained at that point.

There is a feature/setting option on the AIM labeled "Wake from ECU". You'd think if you choose Disabled, that the unit would not turn on by itself.......but it does.....Maybe I should try Enabled......would be ridiculous if it didn't turn on then.....
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