[auaian]

So my 2015 528i hasn’t been acting weird at all, but when I scanned codes to reprogram a headlight today I found a few extra ones - 801C13, 801C12(intermittent), 1C3101(permanent). Not sure if this just means I have some bad sensors or if anyone else has had this happen? I do have a few things out that i need to replace like the dtc button and the hdc button but luckily i don’t race my car or live in the mountains. Anyone idea though?

[Qsilver7]

The check engine light is OBDII related. OBD II was a 1996 federal mandate for all cars to have the same standard for retrieval and notification of the car’s emissions system (air pollution). So if the codes you listed aren’t related to the car’s emissions system (fuel/air/ignition/etc), then the CEL warning light won’t illuminate.

Here’s a link to a website that you can enter BMW hex (6 digit) codes for an explanation of what sensor set it and possible explanations & solutions: https://bmwfault.codes/

[auaian]

Originally Posted by Qsilver7

The check engine light is OBDII related. OBD II was a 1996 federal mandate for all cars to have the same standard for retrieval and notification of the car’s emissions system (air pollution). So if the codes you listed aren’t related to the car’s emissions system (fuel/air/ignition/etc), then the CEL warning light won’t illuminate.

Here’s a link to a website that you can enter BMW hex (6 digit) codes for an explanation of what sensor set it and possible explanations & solutions: https://bmwfault.codes/

thank you but i just meant no lights are on the dash, sorry. i already know what all the codes mean thanks to my launch device, im just not sure if these are problems i should actually look into