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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Engine Control System Self-Diagnostics - 3.4L) >> Diagnostic Tests >> DTC P0449: EVAP Canister Vent Solenoid Control Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Pontiac Grand Am, 2002 Oldsmobile Alero, 2002 Chevrolet Monte Carlo, and 2002 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. 2

    Listen or feel for a click when the valve operates. Ensure that 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 valve.

  3. 6

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