Inspection Procedure

HINT:

• Read freeze frame data using the Intelligent tester or Techstream. 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.
• This DTC relates to the Accelerator Pedal Position (APP) sensor.

1. READ VALUE OF INTELLIGENT TESTER OR TECHSTREAM (ACCELERATOR POSITION SENSOR) (See  INSPECTION PROCEDURE   ) 

   OK: Go to step   3 

   NG: GO TO NEXT STEP 

2. CHECK HARNESS AND CONNECTOR (ACCELERATOR PEDAL POSITION SENSOR - ECM) (See  DTC P2121 THROTTLE / PEDAL POSITION SENSOR / SWITCH "D" CIRCUIT RANGE / PERFORMANCE   ) 

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: GO TO NEXT STEP 

3. REPLACE ACCELERATOR PEDAL ROD ASSEMBLY 
   1. Replace the accelerator pedal rod assembly (see REMOVAL ).

   NEXT 

4. CHECK WHETHER DTC OUTPUT RECURS (ACCELERATOR PEDAL POSITION SENSOR DTCS) 
   1. Connect the Intelligent tester or Techstream to the DLC3.
   2. Turn the engine switch on (IG) and turn the tester ON.
   3. Clear DTCs (see DTC CHECK / CLEAR ).
   4. Start the engine.
   5. Allow the engine to idle for 15 seconds.
   6. Enter the following menus:
      1. Intelligent tester - Select: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
      2. Techstream - Select: Powertrain / Engine / Trouble Codes.
   7. Read DTCs.

      Result 

      RESULT CHART
      
      

      Display (DTC Output)	Proceed to
      P2121	A
      No output	B

   B: SYSTEM OK 

   A: GO TO NEXT STEP 

   REPLACE ECM (See  REMOVAL  )