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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 367 (Engine Controls Self-Diagnostics - 3.1L Engine) >> Diagnostic Tests >> DTC P0449: EVAP Vent Solenoid Control Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. 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 procedure.

  1. 2  - Listen or feel for a click when the EVAP vent solenoid operates. Ensure that both the ON and the OFF states are commanded. Repeat the commands as necessary.
  2. 5  - This step verifies that the PCM is providing ground to the EVAP vent solenoid.
  3. 6  - This step tests if the EVAP vent solenoid control circuit is grounded.

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