18-030-14

Flash: Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo Diesel. Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following Transmission Faults. These Faults Are Currently Tripped As A One Trip Fault And Should Have Been A Two Trip Fault: ? P0201 - P0206 - FUEL INJECTOR X CIRCUIT/OPEN ? P049D - EGR CONTROL POSITION EXCEEDED LEARNING LIMIT ? P0711 - TRANSMISSION TEMPERATURE SENSOR PERFORMANCE ? P0712 - TRANSMISSION TEMPERATURE SENSOR LOW ? P0713 - TRANSMISSION TEMPERATURE SENSOR HIGH ? P0714 - TRANSMISSION TEMPERATURE SENSOR INTERMITTENT ? P0740 - TCC OUT OF RANGE ? P0869 - LINE PRESSURE HIGH ? P0933 - HYDRAULIC PRESSURE SENSOR RANGE/PERFORMANCE ? P0934 - LINE PRESSURE SENSOR CIRCUIT LOW ? P0935 - LINE PRESSURE SENSOR CIRCUIT HIGH ? P1775 - SOLENOID SWITCH VALVE LATCHED IN TCC POSITION ? P1776 - SOLENOID SWITCH VALVE LATCHED IN LR POSITION ? U0100 - LOST COMMUNICATION WITH ECM/PCM ? U0002 - CAN C BUS OFF PERFORMANCE - BUS OFF ? U110E - LOST AMBIENT TEMPERATURE MESSAGE Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: ? P026A - CHARGE AIR COOLER EFFICIENCY BELOW THRESHOLD ? P04DB - CRANKCASE VENTILATION SYSTEM DISCONNECTED ? P0544 - EXHAUST GAS TEMPERATURE SENSOR CIRCUIT - BANK 1 SENSOR 1 ? P0562 - BATTERY VOLTAGE LOW ? P0604 - INTERNAL CONTROL MODULE RAM ERROR ? P1451 - DIESEL PARTICULATE FILTER SYSTEM PERFORMANCE ? P20EE - SCR NOx CATALYST EFFICIENCY BELOW THRESHOLD - BANK 1 (Additional software enhancements to prevent false MIL) ? P202E - (DIESEL EXHAUST FLUID) REDUCTANT INJECTOR PERFORMANCE ? P2201 - AFTERTREATMENT NOx SENSOR CIRCUIT PERFORMANCE - BANK 1 SENSOR 1 ? P2281 - AIR LEAK BETWEEN MAF AND THROTTLE BODY ? P24A5 - EGR COO