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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1991 (Engine Controls And Fuel - 3.6L (LCS) - DTC P0192 To DTC P0629) >> DTC P0443, P0458, or P0459 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, command the EVAP purge solenoid from 0 to 50 percent and back to 0 percent with a scan tool while observing the following control circuit status parameters:
    • EVAP Purge Sol Short Gnd Test Status
    • EVAP Purge Sol Open Test Status
    • EVAP Purge Sol Short Volts Test Status

      Each parameter should display OK or Not Run.

  2. Ignition ON, command the EVAP purge solenoid to 50 percent with a scan tool. You should hear an audible click.
  3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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