18-018-14

Flash: MIL Illumination - Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any of the following Diagnostic Trouble Code(s) may have been set: ? P0073 - AMBIENT AIR TEMPERATURE SENSOR CIRCUIT HIGH ? P0088 - FUEL RAIL PRESSURE TOO HIGH ? P016F - CLOSED LOOP FUEL PRESSURE CONTROL AT LIMIT - PRESSURE TOO LOW ? P0420 - CATALYST EFFICIENCY (BANK 1) ? P0426 - CATALYST TEMPERATURE SENSOR CIRCUIT PERFORMANCE (BANK 1 SENSOR 1) ? P05F8 - REDUCTANT HEATER CONTROL MODULE PERFORMANCE ? P061B - INTERNAL CONTROL MODULE TORQUE CALCULATION PERFORMANCE ? P062B - INTERNAL CONTROL MODULE FUEL INJECTOR CONTROL CIRCUIT PERFORMANCE ? P200A - INTAKE MANIFOLD RUNNER PERFORMANCE - BANK 1 ? P200B - INTAKE MANIFOLD RUNNER PERFORMANCE - BANK 2 ? P20BA - REDUCTANT HEATER 1 CONTROL CIRCUIT PERFORMANCE ? P20EE - SCR NOX CATALYST EFFICIENCY BELOW THRESHOLD BANK 1 ? P203E - REDUCTANT LEVEL SENSOR 1 CIRCUIT INTERMITTENT/ERRATIC ? P2080 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE ? P2084 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE - BANK 1 SENSOR 2 ? P242B - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE - BANK1 SENSOR 3 ? P2463 - DIESEL PARTICULATE FILTER - SOOT ACCUMULATION ? P24C2 - EXHAUST GAS TEMPERATURE MEASUREMENT SYSTEM - MULTIPLE SENSOR CORRELATION BANK 1 ? P24F2 - EGR TEMPERATURE/CHARGE AIR COOLER TEMPERATURE CORRELATION ? U12A3 - LOST COMMUNICATION WITH PM SENSOR