18-113-15

Flash: Powertrain Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. The customer may describe a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) has been set: ? P0122 - Throttle Position Sensor 1 Circuit Low (6.4L engine (sales code ESG). ? P0123 - Throttle Position Sensor 1 Circuit High (6.4L engine (sales code ESG). ? P0222 - Throttle Position Sensor 2 Circuit Low (6.4L engine (sales code ESG). ? P0223 - Throttle Position Sensor 2 Circuit High (6.4L engine (sales code ESG). ? P0456 - Evap System Small Leak.