JEEP

18-161-22

2022-12-03 · NHTSA 10229791

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P02EE - Cylinder 1 Injector Circuit Performance. P02EF - Cylinder 2 Injector Circuit Performance. P02F0 - Cylinder 3 Injector Circuit Performance. P02F1 - Cylinder 4 Injector Circuit Performance. P2C90 - Crankcase Ventilation System - Hose "A" Disconnected. P1D73 - AGS performance fault. P04FC - Crankcase Ventilation System Performance. P152F - Engine Hood Switch 2 / Engine Hood Switch 1 Correlation(Enlarged Europe and Middle East/Africa) only equipped with Gas ParticulateFilter (GPF))(DTC will set when driving above 72 kph (45 mph). P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. P050B - Cold Start Ignition Timing Performance. P258B - Electric Vacuum Pump Performance. C1252-92 - Vacuum Pump Control Circuit - Performance Or Incorrect Operation. P2B95 - Cold Start Injection Pulse Performance. P062A - Fuel Pump Control Performance. P058C - Battery Monitor Module Temperature Monitoring Performance. P0607 - ECU Internal Performance. Injector performance faults for cylinders 2 - 4 map to DTC for incorrect cylinders. In addition the following software enhancement are included: AGS stuck condition (The customer won't see an issue, but this calibrationallows AGS performance fault - P1D73, to work correctly). Software corrects an issue with the wrong cylinder identification if an injectorcircuit performance fault is set in the PCM: If any of the series of injector control circuit faults are set, please refer tothe bullet-pointed list below to determine which injector to address.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.