Inspection Procedure

HINT:

Read freeze frame data using the Techstream. 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 P0016) 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the Techstream on.
   4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
   5. Read DTCs.

   Result 

   DTC RESULT REFERENCE
   
   

   Result	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. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY) 
   1. Connect the Techstream to the DLC3.
   2. Start the engine.
   3. Turn the Techstream on.
   4. Warm up the engine.
   5. Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT System (Bank 1).
   6. Enter the following menus: Powertrain / Engine and ECT / Data List / VVT Change Angle (Bank 1) and VVT OCV Duty (Bank 1).
   7. Check that the VVT change angle varies when operating the camshaft timing oil control valve using the Techstream.

      OK: The VVT change angle value and engine speed vary. 

   NG: Go to step  4

   OK: Go to next step 

3. ADJUST VALVE TIMING  (See INSPECTION PROCEDURE )

   NEXT: Go to step  7

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

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

   OK: Go to next step 

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

   NG: REPLACE OIL CONTROL VALVE FILTER 

   OK: Go to next step 

6. REPLACE CAMSHAFT TIMING GEAR ASSEMBLY 
   1. Replace camshaft timing gear assembly (See CAMSHAFT ).
7. CHECK WHETHER DTC OUTPUT RECURS (DTC P0016) 
   1. In order to erase the ECM learned values for valve timing, disconnect the cable from the negative (-) battery terminal for 1 minute.
   2. Reconnect the cable to the negative (-) battery terminal.
   3. Connect the Techstream to the DLC3.
   4. Turn the ignition switch to ON.
   5. Turn the Techstream on.
   6. Clear the DTCs (See DTC CHECK / CLEAR ).
   7. Start the engine and idle it for 5 minutes.
   8. Drive the vehicle with a city driving pattern for approximately 10 minutes.
   9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
   10. Read DTCs.

   Result 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   No output	A
   P0016	B

   B: REPLACE ECM  (See ECM )

   A: END