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DTC P0505: Idle Control System [09/2016 - ]: Procedure

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Trouble Codes.
    5. Read DTCs.

      Result

      Display (DTC output) Proceed to
      P0505 A
      P0505 and other DTCs B

      HINT: 

      If any DTCs other than P0505 are output, troubleshoot those DTCs first.

    Result:  B

    GO TO DTC CHART 

    (Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2016 - ] )

    Result:  A

    See step  2

  2. CHECK VENTILATION HOSE (HOSE CONNECTIONS) 

    OK

    Ventilation hose is connected correctly and is not damaged.

    Result:  NG

    NG 

    REPAIR OR REPLACE VENTILATION HOSE 

    (Refer to ON-VEHICLE INSPECTION [09/2015 - ] )

    Result:  OK

    OK 

    See step  3

  3. CHECK AIR INDUCTION SYSTEM 
    1. Check the air induction system for vacuum leakage.

      OK

      No leakage from air induction system.

      HINT: 

      Perform "Inspection After Repair" after repairing or replacing the air induction system (Refer to INITIALIZATION [09/2015 - ] ).

    Result:  NG

    NG 

    REPAIR OR REPLACE AIR INDUCTION SYSTEM 

    Result:  OK

    OK 

    See step  4

  4. CHECK THROTTLE BODY (VISUALLY CHECK THROTTLE VALVE) 
    1. Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body. And check that the throttle valve moves smoothly.

      OK

      Throttle valve is not contaminated with foreign objects and moves smoothly.

      HINT: 

      Perform "Inspection After Repair" after replacing the throttle body (Refer to INITIALIZATION [09/2015 - ] ).

    Result:  OK

    OK 

    REPLACE ECM 

    (Refer to REMOVAL [09/2015 - ] )

    Result:  NG

    NG 

    REPLACE THROTTLE BODY 

    (Refer to REMOVAL [09/2015 - ] )