18-023-15

Flash: 3.0 L MIL Illumination Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Code(s) may have been set: ? P20C2 - Reductant Heater 3 Control Circuit Performance. ? P204F - Reductant System Performance. ? P20E9 - Reductant Pressure Too High. ? P0087-00 - Fuel Rail Pressure Too Low. ? P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. ? P0171-00 - System Too Lean (Bank 1). ? P0172-00 - System Too Rich (Bank 1). ? P225C-00 - NOX Sensor Performance - Signal Stuck High Bank 1 Sensor 1. ? P225D-00 - NOX Sensor 1/1 Performance - Signal Stuck Low. ? P1288-00 - NOX Sensor 1/2 Zero Offset Too High. ? P1289-00 - NOX Sensor 1/2 Zero Offset Too Low. ? P1296-00 - EGR Slow Response - Increasing Flow. ? P1297-00 - EGR Slow Response - Decreasing Flow. ? P2BA9-00 - NOX Exceedence - Insufficient Reagent Quality. ? P2080-00 - Exhaust Gas Temperature Sensor Circuit Performance. ? P2084-00 - Exhaust Gas Temperature Sensor Circuit Performance-Bank 1 Sensor 2. ? P0426-00 - Catalyst Temperature Sensor Circuit Performance Bank 1 Sensor 1. ? P242B-00 - Exhaust Gas Temperature Sensor Circuit Performance-Bank 1 Sensor 3. ? P062B-00 - Internal Control Module Fuel Injector Control Circuit Performance. ? P0088-00 - Fuel Rail Pressure Too High. ? P016F-00 - Closed Loop fuel Pressure Control At Limit - Pressure Too Low. ? P009A-00 - Intake Air Temperature / Ambient Air Temperature Correlation. ? P0234-00 - Turbocharger Overboost Condition. ? P0420-00 - Catalyst Efficiency (Bank 1). ? P050E-00 - Cold Start Engine Exhaust Temperature Too Low. ? P05F8-00 - Reductant Heater Control Module Performance. ? P061B-00 - Internal Control Module Torque Calculation