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 ANY OTHER DTC OUTPUT (IN ADDITION TO DTC P0121) 
   1. Connect a intelligent tester to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the tester ON.
   4. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   5. Read DTCs.

      Result 

      RESULT REFERENCE CHART
      
      

      Display (DTC output)	Proceed to
      P0121 and other DTCs	B
      P0121	A

      HINT:

      If any DTCs other than P0121 are output, troubleshoot those DTCs first.

   B:  Go TO DTC CHART 

   A: REPLACE THROTTLE BODY