Inspection Procedure

HINT:

Read freeze frame data using a hand-held tester or OBD II scan tool. Freeze frame data record 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 OUTPUT0N ADDITION TO DTC P2121) 
   1. Connect a hand-held tester or OBD II scan tool to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the tester or scan tool ON.
   4. On the tester, select the following menu items: DIAGNOSIS/ENHANCED OBD II/DTC INFO/CURRENT CODES.
   5. Read DTCs.
   6. If using an OBD II scan tool, refer to the instruction manual.

   Result: 

   DTC OUTPUT REFERENCE (DTC P2121)
   
   

   Display (DTC Output)	Proceed To
   P2121	A
   P2121 and other DTCs	B

   HINT:

   If any DTCs other than P2121 are output, troubleshoot those DTCs first.

   B: GO TO  DIAGNOSTIC TROUBLE CODE CHART  ) 

   A 

2. REPLACE ACCELERATOR PEDAL ASSY 

   NEXT 

3. CHECK WHETHER DTC OUTPUT RECURS (DTC P2121) 
   1. Connect the hand-held tester or OBD II scan tool to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the tester or scan tool ON.
   4. Clear DTCs (see DTC CHECK/CLEAR ).
   5. Allow the engine to idle for a minute.
   6. Rev up the engine several times.
   7. On the tester, select the following menu items: DIAGNOSIS/ENHANCED OBD II/DTC INFO/CURRENT CODES.
   8. Read DTCs.
   9. If using an OBD II scan tool, refer to the instruction manual.

   Result: 

   DTC OUTPUT REFERENCE (DTC P2121)
   
   

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

   B: (See  CHECK FOR INTERMITTENT PROBLEMS  ) 

   A: REPLACE ECM (See  ECM (1ZZ-FE/2ZZ-GE)  )