RAM

1811322

2022-06-10 · NHTSA 10221481

车型关联可作为查阅线索；具体发动机、生产范围和软件条件请核对厂商资料。

厂商摘要

以下为英文原文

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. There will be a choice between two calibrations. One for vehicles that utilize an ammonia sensor and one for vehicles that have hadthe ammonia sensor removed. Be sure to select the correct software based on vehicle configuration.Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Uponfurther investigation the technician may find that one or more of the following DTCs have been set: P064F - Unauthorized Software/Calibration Detected. P202E - (Diesel Exhaust Fluid) Reductant Injector Performance. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. U0001 - Can C Bus. P20EE - Selective Catalytic Reduction (SCR) NOx Catalyst Efficiency BelowThreshold - Bank 1 (For ammonia sensor equipped vehicles). P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1 (For ammonia sensor deletedsystems only). P218F - Reductant No Flow Detected. P242F - Diesel Particulate Filter Restriction - Ash Accumulation. U110E - Lost Ambient Temperature Message. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor CircuitIntermittent (setting when the block heater is plugged in). P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. U3017 - Control Module Timer/Clock Performance. U1421 - Implausible Ignition Key Off Time Received. P2281 - Air Leak Between MAF And Throttle Body. In addition, the following software enhancements are also available: A/C pressure sensor update. wiTECH engine cooling fan actuation test update. Ambient air temperature improvements. Operational improvement for dual alternators. Selective Catalytic Reduction (SCR) efficiency scan tool test improvement. Fuel filter minder calibration changes. wiTECH Fuel Pressure Override and Fuel System Run Up test improvements. Exhaust Gas Recirculation (EGR) system improvement to help prevent freezeup. Diesel Exhaust Fluid (DEF) system enhancement during stationary regeneration.

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。