Inspection Procedure

HINT:

Read freeze frame data using the intelligent tester. 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 DTC OUTPUT (IN ADDITION TO DTC P0101) 
   1. Connect the intelligent tester to the CAN VIM. Then connect the CAN VIM to the DLC3.
   2. Turn the ignition switch ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   4. Read the DTCs.

      Result 

      RESULT REFERENCE
      
      

      Display (DTC output)	Proceed to
      P0101 and other codes are output	A
      Only P0101 is output	B

      HINT:

      If any other codes besides P0101 are output, perform troubleshooting for those DTCs first.

   B: GO TO RELEVANT DTC CHART 

   A: Go to next step 

2. 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 

3. CHECK VENTILATION HOSE 

   OK: 

   Ventilation hose is connected correctly and is not damaged. 

   NG: REPAIR OR REPLACE VENTILATION HOSE 

   OK: REPLACE MASS AIR FLOW METER