18-060-24

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P2463 - Particulate Filter Restriction - Soot Accumulation Bank 1. (EE Market Only)**
• 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.
• P04DB - Crankcase Ventilation System Disconnected.
• P040F - EGR Temperature Sensor A-B Correlation.
• P225D - Nox Sensor 1/1 Performance - Signal Stuck Low.
• P0088 - Fuel Rail Pressure Too High.
• P0404 - EGR “A” Control Circuit Range/Performance.
• P20C6 - Reductant Heater 4 Control Circuit Performance.
• P0524 - Low oil pressure (during start up in cold ambient temps).
• P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control.
• P02E8-00 - Diesel Intake Air Flow Position Sensor Circuit Low.
• P20FB-00 - Reductant Pump 2 Control Performance.
• P065A-00 - Generator System Performance. Customers may experience one or more of the following:
• Slow acceleration.
• Reduced vehicle speed & torque in high and 4 low.
• Poor cold idle stability.
• Poor idle quality with AC on.
• Excessive engine speed oscillations at tachometer red-line.
• Following a long key-on situation, poor cold start and idle stability.
• Cold hard start/extended crank.
• Block heater not providing a proper cold start and stable idle.
• High idle speeds at altitude when remote start is active.
• The cruise control and speed limited set speed doesn’t match the speedometer. It could be up to 2.5 kph (1.5 mph) difference. Other Software enhancements:
• Low speed engine idle improvements.
• Improved engine restart performance and torque response during low fuel level and/or hot ambient conditions.
• Corrects instances of vehicles restarting once SRC Inducement is active, and the mileage countdown has expired.
• Reduce engine delay during cold start garage shifts.
• Improve idle stability, Improvement of cold start and combustion stability after start during cold ambient temperatures.
• Eliminate turbocharger surge on tip-out.
• Eliminate idle oscillation in park and drive.
• Speedometer accuracy improvement(s).
• Cruise control updates.
• Battery durability improvements in hot ambient temperatures. This bulletin involves reprogramming the PCM with the latest available software."