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.
