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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 2.0L (LSY) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P0449, P0498, or P0499 >> Component Testing

Component Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition/Vehicle - Off
  2. Disconnect the electrical connector: Q13 Evaporative Emission Vent Solenoid Valve
  3. Test for 10 to 30 ohms between the test points: Control terminal 1/A & B+ terminal 2/B
    • If not between 10 and 30 ohms 

      Replace the component: Q13 Evaporative Emission Vent Solenoid Valve

    • Go to next step: If between 10 and 30 ohms 
  4. All OK.
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