TSB-16-0078

SOME 2016 MKX VEHICLES EQUIPPED WITH A 3.7L DURATEC ENGINE AND BUILT ON OR BEFORE 4/21/2016 MAY EXHIBIT AN ILLUMINATED MIL WITH DTC P013C STORED IN THE POWERTRAIN CONTROL MODULE (PCM). THIS MAY BE CAUSED BY IMPROPER SEALING OF THE LEFT SIDE EXHAUST Y-PIPE FLANGE DUE TO WELD SPLATTER OR EXHAUST PIPE INTRUSION INTO THE FLANGE SEALING SURFACE.