Conditions For Running DTC

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0105, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0125, P0131, P0132, P0133, P0134, P0135, P0452, P0453, P0502, P0601, P0602, or P1621 not set.
EVAP vent solenoid is commanded ON (closed).
EVAP purge solenoid is commanded OFF (closed).
Engine is running.
Fuel level is 15-85 percent.
Barometric Pressure (BARO) is greater than 21.3 in. Hg (75 kPa).
Engine Coolant Temperature (ECT) and Intake Air Temperature (IAT) is 39°-86°F (4°-30°C) at engine start-up.
ECT and IAT are within 15°F (8°C) of each other.
Throttle Position (TP) angle is 7-35 percent.
Vehicle speed is less than 70 MPH (113 km/h).
DTC P0442 diagnostic runs once per ignition cycle after the conditions have been met.