Of interest to those who use DTC (Diagnostic Trouble Code) readers, this was on OASIS today:
2013-2016 Fusion Hybrid/MKZ Hybrid/C-Max Hybrid - Disregard U3000:04 In The Battery Energy Control Module (BECM)
Some 2013-2016 Fusion Hybrid/MKZ Hybrid/CMAX Hybrid vehicles may exhibit a U3000:04 DTC in the Battery Energy Control Module (BECM) that clears, but may return after a short time. This code is a commonly set DTC in the BECM and can be disregarded. Diagnose all other DTCs first. If no other DTCs are present no further action or repair is necessary. As stated in the Workshop Manual, Section 414-03, this DTC does not affect system operation and does not illuminate a warning indicator.