Inspection Procedure

HINT:

Read freeze frame data using a Techstream. 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 OUTPUT (IN ADDITION TO DTC P0016) 
   1. Connect a Techstream to the DLC3.
   2. Turn the ignition switch to ON and turn the tester ON.
   3. Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.
   4. Read DTCs.

      Result 

      RESULT CHART
      
      

      Display (DTC Output)	Proceed To
      P0016	A
      P0016 and other DTCs	B

      HINT:

      If any DTCs other than P0016 are output, troubleshoot those DTCs first.

   B: GO TO DTC CHART (See  DIAGNOSTIC TROUBLE CODE CHART   ) 

   A: Go to next step 

2. CHECK VALVE TIMING (CHECK FOR LOOSE TIMING CHAIN OR JUMPED TEETH) (See  INSPECTION PROCEDURE   ) 

   NG: ADJUST VALVE TIMING  (See REMOVAL )

   OK: Go to next step 

3. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (OCV) (See  INSPECTION PROCEDURE   ) 

   NG: REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (See  REMOVAL   ) 

   OK: Go to next step 

4. INSPECT OIL CONTROL VALVE FILTER (See  INSPECTION PROCEDURE   ) 

   NG: CLEAN OIL CONTROL VALVE FILTER 

   OK: Go to next step 

5. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY 
   1. Replace the camshaft timing gear assembly (See REMOVAL ).
6. CHECK WHETHER DTC OUTPUT RECURS 
   NOTE: After replacing the ECM or adjusting intake valve timing, confirm that the DTC output does not recur.
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the tester ON.
   4. Clear DTCs (See DTC CHECK/CLEAR  ).
   5. Switch the ECM from normal mode to check mode using the tester (See CHECK MODE PROCEDURE  ).
   6. Start the engine and warm it up.
   7. Allow the engine to idle for 1 minute or more, and then drive the vehicle for 1 minute or more.
   8. Confirm that no DTC is set, using the tester.

      OK: 

      No DTC output 

   NG: REPLACE ECM (See  REMOVAL   ) 

   OK: END