pennstatejeff
New Member
Folks: Owned the bike for 4 years, just passed 37K miles, been running like a champ since I got it. Check Engine Light started popping up a few weeks ago, recently pulled codes and got a P0603. I know it's supposedly related to the ECM, but can't determine what may be going on. It seems to be running like normal, good power when accelerating, smooth operation, but I also don't want to get left high and dry by the side of the road if it breaks down. Any clues as to what might be causing the code to appear, diagnostics I could run before taking it to my local bike mechanic or the stealership? Many thx.