The codes originally appeared when the bike was started for an oil change, but soon went off. A couple days later when I was going to ride, the codes came on immediately and stayed on. The dealership has what I consider their best mechanic working on it, he assured us he'd checked all grounding, but sounds like he might have missed something. Trying different parts, and taking a week to get each of those parts, isn't setting well with me. We had a week long trip planned to NW Arkansas, in and around Eureka Springs, so when this happened my husband graciously offered me the use of one of his bikes. I opted for his K1600GT, after riding it for a week I'm tempted...........