18-090-19

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0340 - Cam Position Sensor Circuit - Bank 1 Intake. P0345 - Cam Position Sensor Circuit - Bank 2 Intake. P0365 - Cam Position Sensor Circuit - Bank 1 Exhaust. P0390 - Cam Position Sensor Circuit - Bank 2 Exhaust. The following software enhancements are also available:OBD calibration turned offDTC U0463 - Fuel Level Implausiblemessage code and will now be detected withDTC P0463 - Fuel Level Sensor 1 Circuit High. More robust trailer brake module enhancements for 3rd party aftermarket designs. Cam/crank diagnostic has been turned from a 1-trip to a 2-trip MIL. Change fuel level legislative reporting from a voltage to a percent scale.