JEEP

1800122

2022-01-05 · NHTSA 10222968

車型關聯可作查閱線索；引擎、生產範圍與軟體條件請核對原廠資料。

原廠摘要

以下為英文原文

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P04DB - Crankcase Ventilation System Disconnected. P040F - EGR Temperature Sensor A-B Correlation. P225D - Nox Sensor 1/1 Performance - Signal Stuck Low. P0088 - Fuel Rail Pressure Too High. P0404 - EGR ?A? Control Circuit Range/Performance. P20C6 - Reductant Heater 4 Control Circuit Performance. P208B - Reductant Pump 1 Control Performance. P0524 - Low oil pressure (during start up in cold ambient temps). P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P02E8-00 - Diesel Intake Air Flow Position Sensor Circuit Low. P20FB-00 - Reductant Pump 2 Control Performance. P065A-00 - Generator System Performance. Customers may experience one or more of the following:Slow acceleration. Reduced vehicle speed&torque in high and 4 low. Poor cold idle stability. Poor idle quality with AC on. Excessive engine speed oscillations at tachometer red-line. Following a long key-on situation, poor cold start and idle stability. Cold hard start/extended crank. Block heater not providing a proper cold start and stable idle. High idle speeds at altitude when remote start is active. The cruise control and speed limited set speed doesn?t match the speedometer. It could be up to 2.5 kph (1.5 mph) difference. Other Software enhancements:Corrects instances of vehicles restarting once SRC Inducement is active, and the mileage countdown has expired. Reduce engine delay during cold start garage shifts. Improve idle stability, Improvement of cold start and combustion stability after start during cold ambient temperatures. Eliminate turbocharger surge on tip-out. Eliminate idle oscillation in park and drive. Speedometer accuracy improvement(s). Cruise control updates.

僅在原廠、通報編號、發布日期和完整摘要一致時，才合併重複登錄，並保留原始編號。舊資料仍可查閱；確認明確取代關係後才標示後續版本。1994 年以前的車輛關聯與預設結果分開顯示；未註明年式不等於所有年式適用。