Inspection Procedure

HINT:

• The following conditions may also cause DTC P0505 to be set:
  1. The floor carpet overlapping onto the accelerator pedal, causing the accelerator pedal to be slightly depressed and therefore the throttle valve position to be slightly open.
  2. The accelerator pedal being not fully released.
• Read freeze frame data using the intelligent tester or Techstream. Freeze frame data records the engine condition when malfunctions are detected When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505) 
   1. Connect the intelligent tester or Techstream to the DLC3.
   2. Turn the power switch ON (IG).
   3. Turn the tester O N.
   4. Enter the following menus.
      1. Intelligent tester - Select: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
      2. Techstream - Select. Powertrain / Engine and ECT / Trouble Codes.
   5. Read DTCs.

      Result 

      RESULT REFERENCE
      
      

      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.

   B: GO TO DTC CHART  (See DIAGNOSTIC TROUBLE CODE CHART )

   A: Go to next step 

2. CHECK PCV HOSE (HOSE CONNECTIONS) 

   OK: PCV hose is connected correctly and is not damaged. 

   NG: REPAIR OR REPLACE PCV HOSE  (See REMOVAL )

   OK: Go to next step 

3. CHECK AIR INDUCTION SYSTEM 
   1. Check the air induction system for vacuum leakage (see ON-VEHICLE INSPECTION ).

      OK: No leakage from air induction system. 

   NG: REPAIR OR REPLACE AIR INDUCTION SYSTEM  (See REMOVAL )

   OK: Go to next step 

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. 

   NG: REPLACE THROTTLE BODY  (See REMOVAL )

   OK: REPLACE ECM  (See REMOVAL )