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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 157 (Engine Controls And Fuel - 4.6L - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0442 >> Conditions for Running the DTC

Conditions for Running the DTC

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

The following conditions must be met prior to ignition OFF.

  • DTCs P0101, P0102, P0103, P0111, P0112, P0113, P0116, P0117, P0118, P0120, P0125, P0128, P0443, P0446, P0449, P0452, P0453, P0455, P0461, P0462, P0463, P0496, P1516, P2101, P2120, P2125, P2138, P2610 are not set.
  • The diagnostic runs once after a cold start drive cycle.
  • The start-up intake air temperature (IAT) is between 4-30°C (39-86°F).
  • The start-up engine coolant temperature (ECT) is less than 30°C (86°F).
  • The start-up IAT and ECT are within 8°C (15°F).
  • The barometric pressure (BARO) is more than 74 kPa.
  • The ambient air temperature is between 2-32°C (36-90°F).
  • The engine run time minimum is 10 minutes.
  • The vehicle has traveled more than 8 kilometers (5 miles) this trip.
  • The ECT is more than 70°C (158°F).
  • The fuel level is between 10-90 percent.
  • The ignition is OFF.
  • A refueling event is not detected.
  • DTC P0442 runs once per drive cycle when the above conditions are met.
  • DTC P0442 runs once per drive cycle during the hot soak period after the ignition is turned OFF and may require up to 45 minutes to complete. The controller will not make more than 2 test attempts per day. The time since the last completed engine off natural vacuum test must be at least 17 hours.
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