JEEP

18-040-15

2015-05-05 · NHTSA 10148897

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: Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that Diagnostic Trouble Code (DTC) P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM. In addition, customers may report that the vehicle has failed the emissions certification test. Upon further investigation, it may be found that the Individual Cylinder Fuel Control (ICFC) monitors are reporting as failing to the scan tool even though the monitors have actually passed.

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.