Inspection Procedure

HINT:

Read freeze frame data using the hand-held tester or the OBD II scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, 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 OTHER PTC OUTPUT (IN ADDITION TO PTC P0505) 
   1. Read the DTC using the hand-held tester or the OBD II scan tool.

      Result: 

      DTC OUTPUT RESULT
      
      

      Display (DTC Output)	Proceed to
      Only P0505 is output	A
      P0505 and other DTCs are output	B

      HINT:

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

   1. B: GO TO RELEVANT DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART  ) 
   2. A: GO TO NEXT STEP. 
2. CHECK CONNECTION OF PCV HOSE 

   OK: PCV hose is connected correctly and PCV hose has no damage. 

   1. NG: REPAIR OR REPLACE PCV HOSE 
   2. OK: GO TO NEXT STEP. 
3. CHECK AIR INDUCTION SYSTEM 
   1. Check for vacuum leaks in the air induction system.

      OK: No leak in air induction system. 

   1. NG: REPAIR OR REPLACE AIR INDUCTION SYSTEM 
   2. OK: CHECK ELECTRIC THROTTLE CONTROL SYSTEM (See  ON-VEHICLE INSPECTION  )