Conditions for Running the DTC

P0450

• The engine is running.
• The estimated ambient air temperature is warmer than -7°C (+19.4°F).
• The EVAP canister vent valve has been open for more than 3 seconds.
• The vehicle speed is less than 29 km/h (18 mph).
• DTC P0450 runs continuously when the above conditions have been met.

P0451 - Part 1

• The engine is running.
• The vehicle speed is greater than 0 km/h (0 mph).
• The ambient pressure is greater than 68 kPa.
• The estimated ambient air temperature is warmer than -7°C (+19.4°F).
• The fuel level is between 12-88 percent.
• DTC P0451 runs continuously when the above conditions have been met.

P0451 - Part 2

• The EVAP canister purge solenoid valve is closed and the EVAP canister vent solenoid valve is open.
• The vehicle speed is between 10-75 km/h (6-46 mph).
• The time since engine start is greater than 450 seconds.
• DTC P0451 runs whenever the above conditions have been met.

P0452 and P0453

• The engine is running.
• DTCs P0452 and P0453 run continuously when the above condition has been met.