Inspection Procedure

HINT:

Read freeze frame data using the hand-held tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, 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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0101) 
   1. Connect the hand-held tester to the DLC3.
   2. Turn the ignition switch on (IG).
   3. Turn the tester on.
   4. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   5. Read DTCs.

   Result: 

   DTC OUTPUT CHART
   
   

   Display (DTC Output)	Proceed To
   P0101 and other DTCs	A
   P0101	B

   HINT:

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

   1. B: REPLACE MASS AIR FLOW METER 
   2. A: GO TO DTC CHART (SEE  DIAGNOSTIC TROUBLE CODE CHART  )