Inspection Procedure

HINT

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 P0101) 
   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 P0101 is output	A
      DTC P0101 and other	DTCs are output B

      HINT

      If any DTCs other than P0101 are output, troubleshoot those DTCs first

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

   A: Go to next step 

2. 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 

3. CHECK PCV HOSE CONNECTIONS 

   OK: PCV hose is connected correctly and is not damaged. 

   NG: REPLACE PCV HOSE  (See REMOVAL )

   OK: REPLACE MASS AIR FLOW METER  (See REMOVAL )