Check Engine Light

Billgordon66 · 09-05-2021, 07:09 PM

I’ve had my 2015 i3 REX for about two years now, with no problem. A couple of weeks ago, the check engine light came on. My cheap code reader couldn’t identity any codes, so I cleared the light, but it popped back on a few days later. Ordered the Foxwell NT510, used the BMW setting, and got the following two codes:

222537 Internal charging electronics, component protection: Deactivation

222826 Charge management function: Check control message 885, charging with reduced output.

Googling all that has returned bupkis. Any insight here before I throw myself on the mercy of the nearest BMW dealer?

vreihen16 · 09-05-2021, 07:13 PM

Out of curiosity, when was the last time that the 12V aux battery was replaced?????

Billgordon66 · 09-05-2021, 07:18 PM

I replaced it a little over a year ago, in the spring of 2020, and had this little import shop down the road register it.

vreihen16 · 09-05-2021, 08:17 PM

OK, just checking. A fading 12V aux battery throws all kinds of weird codes for a lot of people.....

Billgordon66 · 09-05-2021, 08:46 PM

Quote:

Originally Posted by vreihen16

OK, just checking. A fading 12V aux battery throws all kinds of weird codes for a lot of people.....

Thanks!

Coastali8 · 09-06-2021, 09:53 AM

BMW and other manufacturers have finally figured out a way to keep you supporting your local BMW dealership versus the local garage on the corner.

In my most recent experience one fault code on my i8 that I read out told me that there was a high voltage isolation barrier problem that was likely just moisture in a connection. The fault cleared itself a day later. But after visiting the dealership they informed me that the fault was caused by a heater failure for the main traction battery and that the problem could eventually cause the main traction battery to fail. ( I’m still not sure if I believe them but what can I do?)
Long story short, $2800 later the problem was resolved.
My suggestion is, take the car to the dealership and give up on guessing what the problem might be. BMW has got you by the _____. (fill in your most tender appendage here.)

I also own an i3s and it has so far been much more reliable.

09-05-2021, 07:09 PM	#1
Billgordon66 New Member 0 Rep 5 Posts Drives: BMW i3 Join Date: Jun 2019 Location: Virginia iTrader: (0)	Check Engine Light I’ve had my 2015 i3 REX for about two years now, with no problem. A couple of weeks ago, the check engine light came on. My cheap code reader couldn’t identity any codes, so I cleared the light, but it popped back on a few days later. Ordered the Foxwell NT510, used the BMW setting, and got the following two codes: 222537 Internal charging electronics, component protection: Deactivation 222826 Charge management function: Check control message 885, charging with reduced output. Googling all that has returned bupkis. Any insight here before I throw myself on the mercy of the nearest BMW dealer?
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09-05-2021, 07:13 PM	#2
vreihen16 Recovering Perfectionist 15217 Rep 941 Posts Drives: 2015 BMW i3 BEV Join Date: Jun 2019 Location: Orange County, NY iTrader: (0) Garage List 2014 Mighty Freight ... [0.00] 2015 BMW i3 BEV [0.00] 2000 Audi TT Quattro [0.00] 1967 Formula Vee [0.00]	Out of curiosity, when was the last time that the 12V aux battery was replaced????? __________________ 2015 BMW i3 BEV, Giga World (Lodge interior), Tech/Driving Assist Packages, 30K miles
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09-05-2021, 07:18 PM	#3
Billgordon66 New Member 0 Rep 5 Posts Drives: BMW i3 Join Date: Jun 2019 Location: Virginia iTrader: (0)	I replaced it a little over a year ago, in the spring of 2020, and had this little import shop down the road register it.
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09-05-2021, 08:17 PM	#4
vreihen16 Recovering Perfectionist 15217 Rep 941 Posts Drives: 2015 BMW i3 BEV Join Date: Jun 2019 Location: Orange County, NY iTrader: (0) Garage List 2014 Mighty Freight ... [0.00] 2015 BMW i3 BEV [0.00] 2000 Audi TT Quattro [0.00] 1967 Formula Vee [0.00]	OK, just checking. A fading 12V aux battery throws all kinds of weird codes for a lot of people..... __________________ 2015 BMW i3 BEV, Giga World (Lodge interior), Tech/Driving Assist Packages, 30K miles
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09-06-2021, 09:53 AM	#6
Coastali8 First Lieutenant 126 Rep 308 Posts Drives: 2015 Crystal White Giga World Join Date: Jul 2017 Location: Oregon coast iTrader: (0) Garage List 2015 BMW i8 [10.00] 1970 Porsche 914-6 [0.00] 2018 BMW i3s REx [0.00]	BMW and other manufacturers have finally figured out a way to keep you supporting your local BMW dealership versus the local garage on the corner. In my most recent experience one fault code on my i8 that I read out told me that there was a high voltage isolation barrier problem that was likely just moisture in a connection. The fault cleared itself a day later. But after visiting the dealership they informed me that the fault was caused by a heater failure for the main traction battery and that the problem could eventually cause the main traction battery to fail. ( I’m still not sure if I believe them but what can I do?) Long story short, $2800 later the problem was resolved. My suggestion is, take the car to the dealership and give up on guessing what the problem might be. BMW has got you by the _____. (fill in your most tender appendage here.) I also own an i3s and it has so far been much more reliable. Last edited by Coastali8; 09-06-2021 at 07:01 PM..
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