Inspection Procedure

HINT:

Read freeze frame data using the hand-held 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 hand-held tester to the DLC3.
   2. Turn the ignition switch ON.
   3. Enter the following menus: DIAGNOSIS / ENHANCED OBDII / DTC INFO / CURRENT CODES.

   Result: 

   DTC OUTPUT SPECIFICATIONS
   
   

   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 the troubleshooting for those codes first.

   1. B: REPLACE MASS AIR FLOW METER 
   2. A: Go to RELEVANT DTC TABLE (See  DIAGNOSTIC TROUBLE CODE TABLE   )