RAM
18-053-14 REV. A
2014-11-14 · NHTSA 10139839
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厂商摘要
以下为英文原文
Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows: Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following DTCs. These Faults Have Been Changed From One Trip Faults To Two Trip Faults: * P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. * U110E - Lost Ambient Temperature Message. * P049D - EGR Control Position Exceeding Learning Limit. * P226C - Turgocharger Boost Control ?A? Slow Response. The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: * U1A24 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: * P0087 - Fuel Rail Pressure Too Low. * P2281 - Air Leak Between MAF And Throttle Body. * P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. * P0128 - Thermostat Rationality. In cold ambient temperatures. * P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. * P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. * P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. * U3017 - Control Module Timer/Clock Performance. * U1421 - Implausible Ignition Key Off Time Received. * P0420 - Catalyst Efficiency Below Threshold. * P026B - Injection Timing Performance. * P04DB - Crankcase Ventilation System Disconnected. * P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. * P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. * P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. * P2002 - Diesel Particulate Filter Efficiency Below Threshold. * P0604 - Internal Control Module RAM. * P1451 - Diesel Particulate Filter System Performance. Other Updates Included: * Urea system cali
NHTSA 厂商通报资料 ↗仅当厂商、通报编号、发布日期和完整摘要一致时,重复登记才会合并展示,原始编号仍予保留。旧资料继续供查阅;确认明确替代关系后才标示后续版本。1994 年以前的车辆关联与默认结果分开显示;未注明年款不等于适用于所有年款。