"SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED. UPON DIAGNOSIS, THE TECHNICIAN MAY FIND NO HARDWARE FAULT AND ONE OR MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTC ) STORED IN THE ECM: P050B-92, P050B-93, P1315-00, P0300-00, P0301-00, P0302-00, P0303-00, AND/OR P0304-00.
CAUSE: THIS MAY BE CAUSED BY AN ON-BOARD DIAGNOSTICS (OBD) CALIBRATION ERROR."
