Some 2016 Ford Econoline vans equipped with a 6.8L engine and built on or before May 5, 2015, may exhibit a MIL on with DTC P2610 (ECM/PCM engine off timer performance) stored in the PCM memory after the 12-volt battery is disconnected.
Reprogram the PCM to the latest calibration using IDS release 95.05 or higher.