June 15, 2023 Service bulletin

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL)...

Jeep technical service bulletin 1804923 for 2022 Jeep Wrangler.

Bulletin number: 1804923
Component: Power train
Summary: Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P02EE - Cylinder 1 Injector Circuit Performance. China only. ? P02EF - Cylinder 2 Injector Circuit Performance. China only. ? P02F0 - Cylinder 3 Injector Circuit Performance. China only. ? P02F1 - Cylinder 4 Injector Circuit Performance. China only. ? P2B95 - Cold Start Injection Pulse Performance. ? P152E - Engine Hood Switch Two Circuit High. ? P152F - Engine Hood Switch Two Engine Hood Switch One Correlation. The customer may also comment on the following: ? ?Performance Limited Service Fuel System? message in the Instrument Panel Cluster (IPC). This bulletin involves reprogramming the PCM with the latest available software.

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