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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 425 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0449: EVAP Canister Vent Solenoid Control Circuit >> Test Description

Test Description

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

The numbers below refer to the step number in the diagnostic procedures.

  1. 2

    A click should be heard or felt when the valve operates. Ensure both the ON and the OFF states are commanded. Repeat the commands as necessary.

  2. 5

    This step verifies that the control module is providing ground to the EVAP vent solenoid.

  3. 6

    This step tests if the EVAP vent valve control circuit is grounded.
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