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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Control System Diagnosis - 1.6L (2 Of 3) (Except HEV)) >> DTC P0506: Idle Air Control System-RPM Lower Than Expected >> System Inspection

System Inspection

WARNING: This page is about a different variant/trim than selected.

■ Check intake system for blockage 

  1. Visually/physically inspect the following items:
    • Air cleaner filter element for excessive dirt or for any foreign objects
    • Hoses of intake system for blockage
    • Throttle body inlet for damage or for any foreign objects
    • Throttle plate for carbon deposits
  2. Has a problem been found in any of the above areas?

    YES 

    NO 

    • Clear DTC and Test-drive under enable conditions above-mentioned. After the test, If this DTC is set, go to "Inspection & Repair" procedure. If not, troubleshooting is completed.