Bmw r1200rt lc ASC problem
Posted: Sun Dec 07, 2025 3:41 pm
Hello. Iam new owner of Bmw r1200rt lc 2015.
I bought it with one problem. Yellow warning triangle is present or sometimes is flashing during driving. So i used only motoscan app to figure out what’s going on. I have present 2 faults 21f730 and 21f720 abs front and rear implausible. I deleted codes and went riding with live data vehicle speed, front sensor speed and rear sensor speed and all 3 values are correct and +\- 0,5kmh same. No differences or anomalies during driving.I tried also on central stand moving separate front and rear wheel and checked live data and all looks correct. I cleaned both abs sensors and checked rings for some damages. All ok.
Can you please advise me what to do next? Sensors i think should be ok.
After i deleted codes and start driving warning light flashes, than stay on, sometimes again flashing….but abs is working normally. I tried it in both cases.
Thanks a much for help!
I bought it with one problem. Yellow warning triangle is present or sometimes is flashing during driving. So i used only motoscan app to figure out what’s going on. I have present 2 faults 21f730 and 21f720 abs front and rear implausible. I deleted codes and went riding with live data vehicle speed, front sensor speed and rear sensor speed and all 3 values are correct and +\- 0,5kmh same. No differences or anomalies during driving.I tried also on central stand moving separate front and rear wheel and checked live data and all looks correct. I cleaned both abs sensors and checked rings for some damages. All ok.
Can you please advise me what to do next? Sensors i think should be ok.
After i deleted codes and start driving warning light flashes, than stay on, sometimes again flashing….but abs is working normally. I tried it in both cases.
Thanks a much for help!