Circuit/System Verification
- Ignition ON, verify DTCs P0444, P0445, P0447, P0448, P0451, P0452, P0453, or P0454 are not set.
- If a DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Verify the scan tool fuel tank pressure (FTP) sensor parameter is near 0 mmHg (0 in H2O).
- If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.