Flash: 6.2L Powertrain Diagnostic And System Enhancements This bulletin involves selectively erasing and...

Bulletin number

18-047-16

Component

Power train

Summary

Flash: 6.2L Powertrain Diagnostic And System Enhancements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) and Transmission Control Module (TCM) with new 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 Codes (DTCs) stored in the PCM memory: P0456 - EVAP System Small Leak. P1611 - Supercharger Bypass Valve Position Sensor 1 Circuit High. P0513 - Invalid Skim Key. P0300 - Multiple Cylinder Misfire (manual transmission applications only). P1613 - Turbocharger/Supercharger Boost Pressure Sensor/Mass Air Flow Sensor Correlation. P2227 - Barometric Pressure Circuit Performance. P1217 - Active Exhaust Valve 1 Performance. P121B - Active Exhaust Valve 2 Performance. The P0513 code is set during remote starting the vehicle and nearly simultaneously pressing the Key Fob button against the Keyless Ignition Node (KIN) causing an engine stall. In addition the PCM software also enables freeze frame/failure records to be stored for the following Diagnostic Trouble Codes: P0102 - MAF sensor circuit shorted to ground. P0103 - MAF Sensor Circuit shorted High. P0607 - ECU Internal Performance. P060E - Level 2 TPS sensor coherency check has failed. P1610 - Supercharger Bypass Valve Position Sensor 1 Circuit Low. P1611 - Supercharger Bypass Valve Position Sensor 1 Circuit High. P1616 - Supercharger Bypass Valve Position Sensor 2 Circuit Low. P1617 - Supercharger Bypass Valve Position Sensor 2 Circuit High. P1620 - Supercharger Bypass Valve Control Open Circuit. P1627 - Supercharger Bypass Valve Position Sensor 1/2 Correlation. P162A - Supercharger Bypass Valve Actuator Control System - Max PWM Exceeded. P162C - Supercharger Bypass Valve Control Circuit. In addition, customers may also comment on the following:

Owners of these vehicles have filed 61 complaints in the transmission category.