Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 2010 Lincoln Mks trunk button inop › 2010 Lincoln Mks trunk button inop May 11, 2012 at 11:00 am #439750 EricTheCarGuyKeymaster I was going to say the switch since the actuator worked the trunk which would mean that part of the circuit was good but a connector problem is always possible as well. Thanks for your post.