Inspection Procedure

HINT:

Read freeze frame data using an intelligent tester or OBD II scan tool. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2111 OR P2112) 
   1. Connect an intelligent 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 RESULT DESCRIPTION
      
      

      Display (DTC Output)	Proceed to
      P2111 or P2112	A
      P2111 or P2112 and other DTCs	B

      HINT:

      If any DTCs other than P2111 or P2112 are output, troubleshoot those DTCs first.

   B: GO TO DTC CHART 

   A: Go to Next Step 

2. CHECK THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) 
   1. Check for contamination between the throttle valve and the housing. If necessary, clean the throttle body. And check that the throttle valve moves smoothly.

      OK: 

      Throttle valve is not contaminated with foreign objects and moves smoothly. 

   NG: REPLACE THROTTLE BODY ASSEMBLY 

   OK : Go to Next Step 

3. CHECK WHETHER DTC OUTPUT RECURS (DTC P2111 OR P2112) 
   1. Connect the intelligent tester or the 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. Start the engine, and fully depress and release the accelerator pedal quickly (to fully open and close the throttle valve).
   6. On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.
   7. Read DTCs.
   8. If using an OBD II scan tool, refer to the instruction manual.

      Result 

      DTC RESULT DESCRIPTION
      
      

      Display (DTC Output)	Proceed to
      No DTC	A
      P2111 or P2112	B

   B: REPLACE ECM 

   A: CHECK FOR INTERMITTENT PROBLEMS