Conditions For Running DTC

• DTCs P0030, P0031, P0032, P0036, P0037, P0038, P0050, P0051, P0052, P0056, P0057, P0058, P0116, P0117, P0118, P0121, P0122, P0123, P0125, P0128, P0131, P0132, P0133, P0134, P0135, P0136, P0137, P0138, P0139, P0140, P0141, P0150, P0151, P0152, P0153, P0154, P0155, P0156, P0157, P0158, P0159, P0160, P0161, P0221, P0222, P0223, P0442, P0443, P0444, P0445, P0446, P0447, P0448, P0449, P0451, P0452, P0453, P0455, P0506, P0507, P1271, P1277, P1278, P1282, P1283, P1511, P1516, P1519, P1523, P1526, P1530, P1551, P2100, P2101, P2107, P2119, P2122, P2123, P2127, P2128, P2138, P2176 are not set.
• The EVAP purge solenoid is commanded OFF.
• The EVAP vent solenoid is commanded ON.
• The engine is at idle.
• The vehicle speed is 0 MPH.
• The engine load is less than 35 percent.
• The Manifold Absolute Pressure (MAP) is less than 40 kPa.
• The battery voltage is more than 11 volts.
• The Engine Coolant Temperature (ECT) at engine start-up is between 46-167°F (8-75°C).
• The intake air temperature (IAT) is between 46-167°F (8-75°C).
• The long term FT cells learned (if not learned, the engine must run longer than 16 minutes and 45 seconds).
• The fuel level is between 1.6-12.7 gallons (6-48 L).

DTC P0440 diagnostic runs once per ignition cycle.