Vehicles impacted by this bulletin may show the following OBD DTC.
- P0441 [1] Evaporative Emission Control System Incorrect Purge Flow
- P0442 [1] Evaporative Emission Control System Leak Detected (small leak)
- P0440 [1] Evaporative Emission Control System Malfunction
- P0446 [1] Evaporative Emission Control System Vent Control Circuit Malfunction
- P0456 [1] Evaporative Emissions System Small Leak Detected