JEEP

18-052-26

2026-05-12 · NHTSA 11032840

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 - 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.

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。