Flash: MIL Illumination - Diagnostic and System Improvements
This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. It also involves replacement of the Oxygen (O2) Sensor and cleaning or replacement of the Exhaust Gas Temperature (EGT) Sensor 1/2 if necessary depending on Diagnostic Trouble Codes (DTC) that may have set.
A small number of customers may experience an intermittent engine shudder or vibration which may not set a Diagnostic Trouble Code (DTC). In addition other customers may experience a Malfunction Indicator Lamp (MIL) illumination upon which the technician may find one or more of the following DTCs have been set:
P016A-00 - Excessive Time To Enter Closed Loop Air/Fuel Ratio Control.
P2459-00 - Diesel Particulate Filter Regeneration Frequency
P0133-00 - O2 Sensor 1/1 Slow Response
P2084-00 - Exhaust Gas Temperature Sensor Circuit Performance - (1/2)
P0171-00 - Fuel System 1/1 Lean
P0426-00 - Catalyst Temperature Sensor Circuit Performance (1/1)
P0045-00 - Turbocharger Boost Control Circuit/Open
P0087-00 - Fuel Rail Pressure Too Low
P009A-00 - Intake Air Temperature/Ambient Air Temperature Correlation
P0128-00 - Thermostat Rationality
P0234-00 - Turbocharger Overboost Condition
P0420-00 - Catalyst Efficiency (Bank 1)
P05F8-00 - Reductant Heater Control Module Performance
P050E-00 - Cold Start Engine Exhaust Temperature Too Low
P200A-00 - Intake Manifold Runner Performance - (Bank 1)
P200B-00 - Intake Manifold Runner Performance - (Bank 2)
P202E-00 - Reductant Injection Valve Circuit Performance
P204F-00 - Reductant System Performance
P2080-00 - Exhaust Gas Temperature Sensor Circuit Performance
P20BA-00 - Reductant Heater 1 Control Circuit Performance
P20BE-00 - Reductant Pressure Line Heater Control Circuit Performance
P20C2-00 - Reductant Heater 3 Control Circuit Performance
P20E9-00 - Reductant Pressure Too High
P225C-00 - NOX Sensor 1/1 Performance - Signal Stuck High
