Home >> Mazda >> 2016 >> 6 Touring, Standard Trans >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> On-Board Diagnostic - Start Stop Unit >> DTC U0001-88; U0100-00; U0101-00; U0121-00; U0121-87; /U0131-00; U0140-00; U014 6-00; U0151-00; U0155-00: Module Communication Error >> Diagnostic Procedure