18-021-25 REV. B

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):
• P0087-00 - Fuel Rail Pressure Too Low.
• P2540-00 - Low Pressure Fuel System Sensor Circuit Range/performance.
• P2543-00 - Low Pressure Fuel System Sensor Circuit Intermittent.
• P214D-00 - SCR NOX Catalyst Outlet Temperature Too High During Particulate Filter Regeneration.
• P242B-00 - Exhaust Gas Temperature Sensor Circuit Performance - Bank 1 Sensor 3.
• P24DA-00 - Particulate Matter Sensor Exhaust Sample Error Bank 1.
• P20EE-00 - SCR Nox Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1.
• P226C-00 - Turbocharger Boost Control "A" Slow Response.
• P2281-00 - Air Leak Between MAF And Throttle Body.
• P229F-00 - NOX Sensor Circuit Range/performance - Bank 1.
• P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit.
• P203F-00 - Reductant Level Too Low.
• P0423-00 - Heated Catalyst Efficiency Below Threshold Bank 1.
• P0263-00 - Cylinder 1 Contribution-Balance.
• P0266-00 - Cylinder 2 Contribution-Balance.
• P0269-00 - Cylinder 3 Contribution-Balance.
• P0272-00 - Cylinder 4 Contribution-Balance.
• P0275-00 - Cylinder 5 Contribution-Balance.
• P0278-00 - Cylinder 6 Contribution/Balance.
• P026B-00 - Injection Timing Performance.
• P020A-00 - Cylinder 1 Injection Timing.
• P020B-00 - Cylinder 2 Injection Timing.
• P020C-00 - Cylinder 3 Injection Timing.
• P020D-00 - Cylinder 4 Injection Timing.
• P020E-00 - Cylinder 5 Injection Timing.
• P020F-00 - Cylinder 6 Injection Timing.
• P06B9-00 - Cylinder 1 Glow Plug Circuit Performance.
• P06BA-00 - Cylinder 2 Glow Plug Circuit Performance.
• P06BB-00 - Cylinder 3 Glow Plug Circuit Performance.
• P06BC-00 - Cylinder 4 Glow Plug Circuit Performance.
• P06BD-00 - Cylinder 5 Glow Plug Circuit Performance.
• P06BE-00 - Cylinder 6 Glow Plug Circuit Performance. Customers may also comment on one or more of the following:
• **Inverter drops out when shifting from P to D gears.
• Diesel Exhaust Fluid (DEF) level gauge slow to update after a refill.
• Poor cold start performance.**
• Cruise control drops out/cancels on its own.
• Engine stumble, runs rough, or a slight lack of power. The following software enhancements are also available:
• **Improved troubleshooting and repair accuracy for air handling components through APT test in WiTECH. **
• Reduce the occurrence of false faults Diagnostic Trouble Codes (DTCs) P0300-00 and P0315-00.
• DTC P1451-00 re-tune to reduce false faults.
• Improvements to allow DTC P2509-00 faults to be cleared with wiTECH.
• Adaptive Cruise Control (ACC) software fix to prevent cruise control dropouts.
• Engine stumble fix for improved drivability.
• Engine stall detection allowing DTC P032F-00 to clear after a power cycle.
• Allow multiple PROXI rewrites.
• Enable cold re-prime (DTC P208B-00 improvement). This bulletin involves inspecting and possibly reprogramming the Engine Control Module (ECM/PCM) with the latest available software