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Home >> Suzuki >> 2005 >> Aerio SX, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Electrical Devices >> Repair Instructions >> Idle Air Control (IAC) Valve Operation Check >> Using SUZUKI Scan Tool
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Using SUZUKI Scan Tool

  1. Connect SUZUKI scan tool to DLC with ignition switch OFF.
  2. Warm up engine to normal operating temperature.
  3. Clear DTC and select "MISC. TEST" mode on SUZUKI scan tool.
  4. Check that idle speed increases and/or reduces when IAC valve is opened and/or when closed by SUZUKI scan tool.

    If idle speed does not change, check IAC valve and wire harness.

    Special tool 

    (A): SUZUKI scan tool 

    Fig 1: Connecting SUZUKI Scan Tool To DLC With Ignition Switch Off
    G04013895Courtesy of SUZUKI OF AMERICA CORP.
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