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Home >> Hummer >> 2009 >> H3T Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.7L - Introduction >> Repair Instructions >> Throttle/Idle Learn >> Throttle Learn >> With Scan Tool-Reset
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With Scan Tool-Reset

  1. Ignition ON, engine OFF. With a scan tool, perform the Idle Learn Reset in Module Setup.
  2. Start the engine, monitor the TB Idle Airflow Compensation parameter. The TB Idle Airflow Compensation parameter value should equal 0 percent and the engine should be idling at a normal idle speed.
    • If the engine is not idling normally, proceed with the Learn portion of the diagnostic.
  3. Clear the DTCs and return to the diagnostic that referred you here.
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