18-002-25

"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):
• **P0300 - Multiple Cylinder Misfire.
• P0301 - Cylinder 1 Misfire.
• P0304 - Cylinder 4 Misfire.
• P0306 - Cylinder 6 Misfire.
• P0307 - Cylinder 7 Misfire.
• P3400 - Cylinder Deactivation System - Bank 1.
• P3497 - Cylinder Deactivation System - Bank 2.
• P3401 - Cylinder 1 Deactivation Control Circuit.
• P3425 - Cylinder 4 Deactivation Control Circuit.
• P3441 - Cylinder 6 Deactivation Control Circuit.
• P3449 - Cylinder 7 Deactivation Control Circuit.
• P1411 - Cylinder 1 Reactivation Control Performance.
• P1414 - Cylinder 4 Reactivation Control Performance.
• P1416 - Cylinder 6 Reactivation Control Performance.
• P1417 - Cylinder 7 Reactivation Control Performance.**
• P2097 - Downstream Fuel Trim System 1 Rich.
• P219A - Bank 1 Air-Fuel Ratio Imbalance.
• P1524 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. **Customers may experience the following:
• Noticeable rough idle and/or misfire during engine warm up.** This bulletin involves reprogramming the PCM with the latest available software. "