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Home >> Toyota >> 2016 >> Highlander LE Plus, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (SFI System [1AR-FE] - Diagnostic Codes - (Except Hybrid) (8 Of 8)) >> SFI System >> DTC P0505: Idle Control System [08/2014 - 11/2016] >> Procedure

DTC P0505: Idle Control System [08/2014 - 11/2016]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    5. Read the DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTC P0505 is output A
      DTC P0505 and other DTCs are output B

      HINT: 

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

    Result: 

    B 

    Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2014 - 11/2015]  or  DIAGNOSTIC TROUBLE CODE CHART [11/2015 - 11/2016] 

    Result: 

    A 

    See step  2

  2. CHECK PCV HOSE CONNECTIONS 

    Refer to COMPONENTS [12/2013 - ]

    OK

    PCV valve and hose are connected correctly and are not damaged.

    Result: 

    NG 

    REPAIR OR REPLACE PCV HOSE 

    Result: 

    OK 

    See step  3

  3. CHECK INTAKE SYSTEM 
    1. Check the intake system for vacuum leaks.

      Refer to ON-VEHICLE INSPECTION [12/2013 - ]

      OK

      No leaks from the intake system.

    Result: 

    NG 

    REPAIR OR REPLACE INTAKE SYSTEM 

    HINT: 

    Perform "Inspection After Repair" after repairing or replacing the intake system.

    Refer to INITIALIZATION [12/2013 - ]

    Result: 

    OK 

    See step  4

  4. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (THROTTLE VALVE) 
    1. Check the throttle body with motor assembly condition.

      OK

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

    Result: 

    NG 

    REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY. Refer to  REMOVAL [12/2013 - ] 

    HINT: 

    Perform "Inspection After Repair" after replacing the throttle body with motor assembly.

    Refer to INITIALIZATION [12/2013 - ]

    Result: 

    OK 

    See step  5

  5. CONFIRM WHETHER DTC OUTPUT RECURS (DTC P0505) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [12/2013 - 11/2016]

      Powertrain > Engine > Clear DTCs 

    5. Turn the ignition switch off and wait for at least 30 seconds.
    6. Turn the ignition switch to ON.
    7. Turn the Techstream on.
    8. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
    10. Read the pending DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      DTC P0505 is output A
      DTCs are not output B

    Result: 

    A 

    REPLACE ECM. Refer to  REMOVAL [12/2013 - ] 

    Result: 

    B 

    END 

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