Follow Clearing BCM Codes September 04, 2019 02:00 Custom Dynamics Help Center Product Troubleshooting Procedures for Body Control Module (BCM) bikes. Turn signal indicator rapid flash. Clearing DTCs on CanBus Models.pdf (80 KB) 1 Comments Date Votes Jeff Sammons September 04, 2019 02:00 I’m getting code b2 156c. After I clear the code and restart the engine, the turn signal still doesn’t work. I’ve cleared the code several times and still have the same problem. Please sign in to leave a comment.