JEEP

1805223

2023-04-21 · NHTSA 10236946

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 Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P016F - Closed Loop Fuel Pressure Control At Limit - Pressure Too Low. ? P025C - Fuel Pump Module Control Circuit Low. ? P0300-00 - Multiple Cylinder Misfire. ? P0301-00 - Cylinder 1 Misfire. ? P0302-00 - Cylinder 2 Misfire. ? P0303-00 - Cylinder 3 Misfire. ? P0304-00 - Cylinder 4 Misfire. ? P0305-00 - Cylinder 5 Misfire. ? P0403-00 - EGR Control Circuit Open (Disabled Fault). ? P208B - Reductant Pump 1 Control Performance. Other Software enhancements: ? Low speed engine idle improvements. ? Improved engine restart performance and torque response during low fuel level and/or hot ambient conditions. This bulletin involves reprogramming the PCM with the latest available software.

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.