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.
• This is the repair procedure of the throttle position sensor.

1. READ OTHER DTC OUTPUT (IN ADDITION TO DTC P0121) 

   Result 

   RESULT CHART
   
   

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

   HINT:

   If any other codes besides P0121 are output, perform the troubleshooting for those codes first.

   B: GO TO RELEVANT DTC CHART 

   A: REPLACE THROTTLE BODY