JEEP

18-052-26

2026-05-12 · NHTSA 11032840

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 - PCR8A3 Technicians may find the following Diagnostic Trouble Code (DTC): ● P04B6-00 - Fuel Fill Door Stuck Closed (Stored Status). NOTE: There will be no Malfunction Indicator Lamp (MIL) for this DTC. Customers may also experience one or more of the following: ● The vehicle will not start and cannot be keyed off. NOTE: The vehicles 12V system remains powered up. ● Poor combustion stability or "wavy" engine RPM oscillations during engine warm-ups. ● Engine Stop/Start (ESS) bumps or lack of refinement. ● Noisy/poor starts in extreme cold temperatures. ● Perceived after-run pump noise after vehicle is turned off. The following software enhancements are also available: ● Diagnostic improvements for DTCs, P013A-00, P013B-00, P013E-00 and P013F-00. ● Improved transitions between engine operating modes for emissions robustness. ● Scan tool improvement to show accurate state of after-run pump. ● Scan tool improvements for EVAP system data. ● Improved combustion stability during warm-up and catalyst-reheating mode. ● Improved ESS refinements. ● Optimization of after-run pump usage for lower 12V usage and perceived customer noise. ● Disablement of DTC P04B6-00 for falsely setting. ● Calibration update for EVAP system Service Leak Test. ● Improved engine starts at extreme low temperatures. This bulletin involves inspecting and possibly reprogramming the Battery Pack Control Module (BPCM), Drive Motor Power Inverter (DMPI), Electric Vehicle Control Unit (EVCU) and PCM with the latest available software.

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。