Good morning! Well I'm back, the Pre-LCI E90 is about 85% done, just a lot of small things need to be done to it but she's on the road now.
Back to the OBD 😅 I am convinced there is an issue with the FRM. I recently got my hands on an Autel MaxiSys Ultra S2 and attempted to connect but got mixed feedback every time i tried to do so. First issue, it would not auto read the VIN, I had to put it in manually every time. Second issue, the scans were inconsistent. The first scan, it connected and said that every system had an issue and they were all permanent codes, but we could not access any of the systems. The second time, could not establish a connection. The third time, it connected and said that only 3 systems had issues but again, could not access any of the systems.
I did some research, and apparently these Pre-Facelift E90's are notoriously prone to FRM failure. And now that i think about it, I have been noticing issues with my interior lights glitching in addition to the OBD issues. Apparently early FRM1 and FRM2 modules in Pre-LCI E90's would often brick themselves because of software corruption due to voltage fluctuations either from a battery too low on charge or a jumpstart and I'm thinking this is my issue.
I do have two LCI E90's in my yard that I didn't have issues connecting to via OBD II, so I'm thinking that I can just take the FRM out of one of those and swap it into the Pre-LCI E90, would I be able to test it initially or does it need to be programmed to the vehicle?
By
TinoTheGreek ·
