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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 508 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - DTC P0420 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0449 >> Component Testing

Component Testing

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  1. Ignition OFF, disconnect the harness connector at the Q13 evaporative emission vent solenoid valve.
  2. Test for 15-25 Ω between the control terminal A or 1 and the B+ voltage terminal B or 2.
    • If not within the specified range, replace the Q13 evaporative emission vent solenoid valve.
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