18-022-26 REV. E

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P2096-00 - Downstream Fuel Trim System 1 Lean.
• P2097-00 - Downstream Fuel Trim System 1 Rich.
• P2098-00 - Downstream Fuel Trim System 2 Lean.
• P2099-00 - Downstream Fuel Trim System 2 Rich.
• P068A-00 - ECM Power De-Energized Performance-Too Early. NOTE: The above DTCs are being falsely set due to lack of robustness to the diagnostic monitor.
• P121B-00 - Active Exhaust Valve 2 Performance.
• P1217-00 - Active Exhaust Valve 1 Performance. Customers may also comment on the following:
• Vehicle exhibits a no crank / no start condition.
• Exhaust pitch does not track with acceleration. This bulletin involves inspecting and possibly reprogramming the PCM, TCM and ISCM with the latest available software.