Inspection Procedure

HINT:

• The following conditions may also cause DTC P0505 to be set: 1) the floor carpet overlapping slightly onto the accelerator pedal, causing the accelerator pedal to be slightly depressed and therefore the throttle valve position to be slightly open; or 2) the accelerator pedal being not fully released.
• Read freeze frame data using an intelligent tester or OBD II scan tool. 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.

When using intelligent tester: 

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0505) 
   1. Connect an intelligent tester or OBD II scan tool to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the tester or scan tool ON.
   4. On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   5. Read DTCs.
   6. If using an OBD II scan tool, refer to the instruction manual.

      Result 

      DTC RESULT DESCRIPTION
      
      

      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 

   A: Go to Next Step 

2. CHECK PCV HOSE (CONNECTIONS) 

   OK: 

   PCV hose is connected correctly and is not damaged. 

   NG: REPAIR OR REPLACE PCV HOSE 

   OK : Go to Next Step 

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

      OK: 

      No leakage from air induction system. 

   NG: REPAIR OR REPLACE AIR INDUCTION SYSTEM 

   OK : Go to Next Step 

4. CHECK THROTTLE VALVE 
   1. Check the throttle valve condition.

   NG: REPLACE THROTTLE BODY ASSEMBLY 

   OK : REPLACE ECM