Some 2011-2022 Explorer and 2020-2022 Aviator vehicles may experience an inoperative roof opening panel motor. If diagnostics lead to a motor replacement, visually inspect the original motor for signs of water intrusion. If found, determine source of water leak prior to replacing the motor. Refer to Workshop Manual (WSM), Section 501-17, Pinpoint Test A for 2011-2016 and Pinpoint Test B for 2017-2022 for identifying the source of the water leak.