JEEP

1803114

2014-09-03 · NHTSA 10220998

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: MIL Illumination P1239, P0298- Engine Oil Temperature Too Low Or High, P0300 Multiple Cylinder Misfire, Includes Powertrain System Improvements/Enhancements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Code has been set: P1239 - Engine Oil Temperature Too Low, set in cold ambient temperatures. P0298 - Engine Oil Temperature Too High, set in cold ambient temperatures. P0300 - Multiple Cylinder Misfire, may set at a 1-2 upshift above 6000 RPM. Possible rough idle when engaging Drive while in 4 LOW after a cold start .The following system improvements have also been included in this software release: Corrected a generic scan tool display issue regarding Mode 6 data accuracy.

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.