Inspection Procedure

HINT:

• This DTC relates to the Throttle Position (TP) sensor.
• Read freeze frame data using the intelligent 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 P0121) 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch 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 CHART
   
   

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

   B:  GO TO DTC CHART 

   A: REPLACE THROTTLE BODY ASSEMBLY