Inspection Procedure

HINT:

• The detection of DTC P0505 may also be caused by: 1) the floor carpet overlapping onto the accelerator pedal, causing the accelerator pedal to be slightly depressed (throttle position to be slightly open); or 2) the accelerator pedal not being fully released.
• Read freeze frame data using the intelligent tester. 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 OTHER DTC OUTPUT (IN ADDITION TO DTC P0505) 
   1. Connect the intelligent tester to the DLC3 with CAN VIM.
   2. Turn the ignition switch ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   4. Read the DTCs.

      HINT:

      If any other codes besides P0505 are output, perform troubleshooting for those DTCs first.

      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  DIAGNOSTIC TROUBLE CODE TABLE 

   A: Go to next step 

2. CHECK CONNECTION OF VENTILATION HOSE 

   OK: 

   PCV hose is connected correctly and is not damaged. 

   NG: REPAIR OR REPLACE VENTILATION HOSE 

   OK: Go to next step 

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

      OK: 

      No leakage from air induction system. 

   NG: REPAIR OR REPLACE AIR INDUCTION SYSTEM 

   OK: Go to next step 

4. CHECK THROTTLE WITH MOTOR BODY ASSEMBLY 
   1. Check the throttle valve condition.

   NG: REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY 

   OK: REPLACE ECM