BMW ECU Error Codes Described (Pxxx codes as well)

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05-20-2023LAST POST

07-26-2018

I think I'm going to burn my M3.
Cyl 2 brand new coil
8 new plugs
test pipes
GTS DCT tune
coded for 02 sensors not to read for cat delete
start stop coded to stay permanently off

First time round
2B68 INDEX_112_IGN
2B57 Motor emergency programm activated

Second time round
27EB INDEX_219_INJ
2B36 Combustion misfire with cu-out cyl 2
2B57 Motor emergency programm activated
2796 Motor emergency programm activated
27C1 Info Tnak leer bei Fehlereintrag
2B43 Combustion misfire with emissions deterioration cyl 2

Can someone please help me!?!?!?

Thread referenced by ///Mbitions in Engine fault codes 08-18-2018

08-18-2018

Yes thanks

Thread referenced by ///M Power-Belgium in bunch of error codes, please help! 09-15-2018

11-09-2018

¤ mau ¤ wrote
something about these:
271C
2761
2762
Vanos ???

thanks

Was this ever diagnosed? I’ve the same three codes just appeared.

11-18-2018

What's a U110F code I have tried to find out and no answer

Thread referenced by EJT86 in Need help finding thread about BMW engine codes 03-13-2019

03-15-2019

Hi there, how do I get to read the second level (P0XX) codes? My reader only displays the 2xxx codes?

06-16-2019

HenryTav wrote
Update:

I found the issue and fixed it! It is not the DCT!

Hi Henry, I am having the same trouble as you. Can you advise what was the issue?

06-16-2019

I just did my DCT transmission oil change. Drove for about 10km to get back, when I reached home. This error came up. Car jerked and went into neutral. Was wondering if any of you had encountered such issues before?

Thread referenced by kscarrol in Advice Needed - Intermittent Half CEL 07-09-2019

Thread referenced by kscarrol in Increases Emission Error 08-16-2019

08-23-2019

Can someone help me on what these codes mean and the solution.

E2C7 K-CAN COMMUNICATION FAULT
AA0E CBX-ECALL SOFTWARE RESET
A7C9 TEMPERATURE ABOVE OPERATING RANGE

08-23-2019

M3__One wrote
Can someone help me on what these codes mean and the solution.

E2C7 K-CAN COMMUNICATION FAULT
AA0E CBX-ECALL SOFTWARE RESET
A7C9 TEMPERATURE ABOVE OPERATING RANGE

I got A7C9 also but no one seems to know how to resolve

08-24-2019

Jineric wrote
I just did my DCT transmission oil change. Drove for about 10km to get back, when I reached home. This error came up. Car jerked and went into neutral. Was wondering if any of you had encountered such issues before?

Had something similar. Needed a new alternator and battery.

Also, anyone know these codes:

CF27
E094

Both are DCT-related issues

04-22-2020

regular guy wrote
CDB6

[btable=100][btrhead=FFFFFF][btd]CDB6[/btd][btd][/btd][/btrhead][btrhead=FFFFFF][btd]Information saved in[/btd][btd]DME[/btd][/btrhead][btrhead=FFFFFF][btd]Fault code[/btd][btd]CDB6[/btd][/btrhead][btrhead=FFFFFF][btd]Fault text[/btd][btd]Diagnosis monitors the required torque.[/btd][/btrhead][btrhead=FFFFFF][btd]Fault description[/btd][btd]Malfunction monitoring conditions The fault is detected if the torque is higher than the required torque.[/btd][/btrhead][btrhead=FFFFFF][btd]Condition for fault identification[/btd][btd]Test condition: [/btd][/btrhead][btrhead=FFFFFF][btd][/btd][btd]Temperature condition - None[/btd][/btrhead][btrhead=FFFFFF][btd][/btd][btd]Time condition - None[/btd][/btrhead][btrhead=FFFFFF][btd][/btd][btd]Other preconditions - None[/btd][/btrhead][btrhead=FFFFFF][btd][/btd][btd]Terminal status - Terminal 15[/btd][/btrhead][btrhead=FFFFFF][btd][/btd][btd]Voltage precondition: Vehicle voltage between 9V and 16V[/btd][/btrhead][btrhead=FFFFFF][btd]Condition for fault memory entry[/btd][btd]The fault is entered immediately.[/btd][/btrhead][btrhead=FFFFFF][btd]Action in service[/btd][btd]Carry out bus system analysis[/btd][/btrhead][btrhead=FFFFFF][btd]Fault effect and breakdown warning[/btd][btd]None[/btd][/btrhead][btrhead=FFFFFF][btd]Driver information[/btd][btd]None[/btd][/btrhead][btrhead=FFFFFF][btd]Service instruction[/btd][btd]None[/btd][/btrhead][/btable]

I found this description on BMW ISTA, but can't guarantee it's for M3.

what the hell does this mean though?
just saw this code pop up

10-29-2020

Good Morning.

My car is running without issue and any ECU lights.
However, yesterday I did a pre-inspection and this third party mechanic told me, the car is ok. But I need to pay $300 to update the software to get the rid of these codes.

My question is, all these codes are being logged since the car was produced? Or since the last clear on the ECU?

I scheduled a visit to the BMW dealership to see, I just wanna understand what is happening.

Regards

05-20-2023

Anyone ever see this code 2B4E : misfires impairing exhaust emission on several cylinders? Couldn't find it in the list.

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BMW ECU Error Codes Described (Pxxx codes as well)

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