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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 108 (Engine Control System Diagnosis - 1.6L (2 Of 3) - Optima (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.

■ Visual Check 

  1. Inspect visually/physically the following items:
    • Air cleaner filter element for excessive dirt or any foreign objects
    • Intake system restriction
    • Exhaust system restriction
    • Engine mechanical problem
    • Sludged throttle body
  2. Have any problems been found?

    YES 

    • Repair as necessary and go to "Resetting Adaptive Values" procedure below.

    NO 

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

■ Resetting Adaptive Values 

  1. Connect KDS/GDS to DLC (Data Link Cable).
  2. Ignition "ON" & ENG "OFF"
  3. Select the "Vehicle S/W Management" about related DTC with KDS/GDS.
    Fig 1: Display - Resetting Adaptive Values Screen
    G11833897Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: Display - Pressing Reset Button Screen
    G11833898Courtesy of KIA MOTORS AMERICA, INC.
    Fig 3: Display - Pressing OK Button Screen (IG ON/ENG OFF)
    G11833899Courtesy of KIA MOTORS AMERICA, INC.
    Fig 4: Display - Message Completion Screen
    G11833900Courtesy of KIA MOTORS AMERICA, INC.
  4. When the "Resetting Adaptive Values" has been finished perfectly, press "OK" button and go to "VERIFICATION OF VEHICLE REPAIR " procedure.