@Gilmax Please make an introductory post in the New Member Section. Also, please go to your account settings and create a "signature" with your XK's info. Thanks.I have a 2008 5.7 HEMI Overland that is having the same issue. Looking over wiring diagrams It looks like either a CAN B issue or a LIN BUS issue. I'm leaning towards a CAN B issue as I was able to pull a U0019 code from the system. I plan to try and dig into this a bit more, and I will keep everyone updated on my findings.