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 Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction

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 the DTCs

      Result 

      RESULT CHART
      
      

      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.

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

   A: Go to next step 

2. CHECK PCV HOSE (HOSE CONNECTIONS) 
   1. Inspect the PCV hose connections (See ON-VEHICLE INSPECTION )

      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 INTAKE SYSTEM 
   1. Check the intake system for vacuum leaks

      OK: No leaks from intake system. 

   NG: REPAIR OR REPLACE INTAKE SYSTEM 

   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 )