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Home › Hummer › 2009 › H3 Alpha › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 5.3L - Troubleshooting & Diagnosis › Service Bay Test › Test Procedure

Test Procedure

NOTE: If the Service Bay Test aborts or fails, a DTC will NOT be set.
  1. Install a scan tool.
  2. Select the Service Bay Test with the scan tool.
    3. WARNING: Refer to Road Test Warning .
  3. Follow the instructions on the scan tool.
    • If the test aborts, correct the condition for running the test, then retest.
    • If the test fails, repair the vehicle for the condition indicated by the failure message on the scan tool.
  4. Verify that the EVAP inspection/maintenance system status is set to YES.
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