yeah, but that doesn't really disable it, from what i hear. i know for sure that it does leave certain systems active. putting it into dyno mode disables everything.

however, i'm not surprised that there are malfunction messages when that stuff is shut off. what does concern me though is i wonder if the ECU logs them. one day a tech will check the logs and say... "hmm, this guy had it in dyno mode and tach'ed it out like 30 times in the span of an hour.. hmm.. warranty voided!" hehe