n54 battery problem...

ycy.yeung.cy · 12-21-2016, 05:02 AM

so my car always need to jump start... and it throw some code:
- DME active codes -

2DEC Power management, battery control.

2DEB Power management, vehicle wiring system control.

2ACC DME digital motor electronics main relay, switch delay.

- DME shadow (inactive) codes -

2AAF Fuel pump, plausibility.

I just replace my battery and alternator last year... I will try to clean my battery connect tomorrow and see... who else has the same problem and how you guys slove it... or someone know what is it please help....

Wilt · 12-21-2016, 06:09 PM

Did you originally register the battery, so the battery management knew it was a newly installed battery?
Did you install same size/type battery as was factory installed, or did you change battery size or type AND code the new characteristics of the new battery?

Lots of dash lights and/or codes often occur when the battery is dying and in need of replacement. Failure to do the above can hurt a battery and shorten its life.

Boland01 · 12-22-2016, 08:08 AM

2AAF is a shadow code. You'll get it if you upgraded your LPFP to a stage II one.

ycy.yeung.cy · 12-25-2016, 12:44 AM

Quote:

Originally Posted by Wilt

Did you originally register the battery, so the battery management knew it was a newly installed battery?
Did you install same size/type battery as was factory installed, or did you change battery size or type AND code the new characteristics of the new battery?

Lots of dash lights and/or codes often occur when the battery is dying and in need of replacement. Failure to do the above can hurt a battery and shorten its life.

I did not register it... I will try it later..

Socket · 12-26-2016, 02:05 AM

Quote:

Originally Posted by ycy.yeung.cy

I did not register it... I will try it later..

If battery was not registered and coded, it will only last 18 months or so
Just had mine replaced and was only 18 months old
Battery shop registered the new one but did not properly code it (was listed as the wrong battery type) meaning if I didnt get it checked and corrected, the new battery would have only had a similar life span..... you should get 5 - 6 years out of a properly registered and coded battery

pruettfan · 12-29-2016, 06:14 AM

Quote:

Originally Posted by Socket

If battery was not registered and coded, it will only last 18 months or so
Just had mine replaced and was only 18 months old
Battery shop registered the new one but did not properly code it (was listed as the wrong battery type) meaning if I didnt get it checked and corrected, the new battery would have only had a similar life span..... you should get 5 - 6 years out of a properly registered and coded battery

I didn't register my last battery and its still going strong 4.5 years later. The registration thing is a bit of a scam in my opinion.

John 070 · 12-29-2016, 07:12 AM

I would agree from observation, that not registering would likely not allow the battery to be used to its full potential, if the car is treating a new battery like a 6 y.o. battery. However, to say batteries fail in 18 mos. because they are not registered, to me, is implausible.

If we take a step back and look at cars where you can simply run to Costco, get a $82 battery made by Interstate with 130 RC and 7xx 0F cca, with a 3.5 yr. free no questions asked warranty (forums say Costco does not even bother to test when you bring it back, I'm not sure the staff would even be able to operate a load tester based on what I've observed), just me, I'd rather have a slightly larger carbon footprint and be able to get a new battery for $82, rather than pay the dealer $280, which is what I did.

The fact that our aunt has her original battery in her 2006 330i that she got summer 2005, and lives in northern NJ, tells me a BMW battery potentially goes a lot longer than 6 years. my .02

Phelo909 · 12-29-2016, 08:36 AM

How far do you drive your car daily? My commute is only 2-3 miles round trip. Since it was such a short drive my battery wasn't getting enough charge from the alternator. These cars draw a lot from the battery to support all the electronics. I ended up getting some faults as well, though none of which you have. I charged my battery at home every few days and the faults disappeared. Hope this helps.

12-21-2016, 05:02 AM	#1
ycy.yeung.cy Private 6 Rep 59 Posts Drives: e90 335i Join Date: Aug 2015 Location: W.A iTrader: (0)	n54 battery problem... so my car always need to jump start... and it throw some code: - DME active codes - 2DEC Power management, battery control. 2DEB Power management, vehicle wiring system control. 2ACC DME digital motor electronics main relay, switch delay. - DME shadow (inactive) codes - 2AAF Fuel pump, plausibility. I just replace my battery and alternator last year... I will try to clean my battery connect tomorrow and see... who else has the same problem and how you guys slove it... or someone know what is it please help....
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12-21-2016, 06:09 PM	#2
Wilt Major 228 Rep 1,041 Posts Drives: 2011 328i Join Date: Mar 2015 Location: SF Bay area iTrader: (0)	Did you originally register the battery, so the battery management knew it was a newly installed battery? Did you install same size/type battery as was factory installed, or did you change battery size or type AND code the new characteristics of the new battery? Lots of dash lights and/or codes often occur when the battery is dying and in need of replacement. Failure to do the above can hurt a battery and shorten its life.
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12-22-2016, 08:08 AM	#3
Boland01 Lieutenant 149 Rep 460 Posts Drives: 2010 535ix, 2008, 2007 335i Join Date: Sep 2013 Location: Magnolia, TX iTrader: (0)	2AAF is a shadow code. You'll get it if you upgraded your LPFP to a stage II one.
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12-29-2016, 07:12 AM	#7
John 070 Lieutenant General 1705 Rep 14,829 Posts Drives: 335i cpe Join Date: Oct 2006 Location: ZSP/ZPP/ZCW iTrader: (0)	I would agree from observation, that not registering would likely not allow the battery to be used to its full potential, if the car is treating a new battery like a 6 y.o. battery. However, to say batteries fail in 18 mos. because they are not registered, to me, is implausible. If we take a step back and look at cars where you can simply run to Costco, get a $82 battery made by Interstate with 130 RC and 7xx 0F cca, with a 3.5 yr. free no questions asked warranty (forums say Costco does not even bother to test when you bring it back, I'm not sure the staff would even be able to operate a load tester based on what I've observed), just me, I'd rather have a slightly larger carbon footprint and be able to get a new battery for $82, rather than pay the dealer $280, which is what I did. The fact that our aunt has her original battery in her 2006 330i that she got summer 2005, and lives in northern NJ, tells me a BMW battery potentially goes a lot longer than 6 years. my .02
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12-29-2016, 08:36 AM	#8
Phelo909 Private 4 Rep 59 Posts Drives: 2008 BMW 335i Coupe Join Date: Nov 2016 Location: Little Rock AFB, AR. iTrader: (0)	How far do you drive your car daily? My commute is only 2-3 miles round trip. Since it was such a short drive my battery wasn't getting enough charge from the alternator. These cars draw a lot from the battery to support all the electronics. I ended up getting some faults as well, though none of which you have. I charged my battery at home every few days and the faults disappeared. Hope this helps.
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