LTB00671NAS1

"SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED AND DIAGNOSTIC TROUBLE CODE (DTC [(P0042, P0043, P0044, P0055, P0061, P0062, P0063, P0142, P0143, P0144, P0147, P0162, P0163, P0164, AND/OR P0167]) RELEVANT TO THE POST-CATALYST HEATED OXYGEN SENSORS MAY BE STORED IN THE ENGINE CONTROL MODULE (ECM). CAUSE: THIS MAY BE CAUSED BY A POST-CATALYST HEATED OXYGEN SENSOR SOFTWARE ERROR."