SFI SYSTEM, Diagnostic DTC:P0016, P0017, P0018, P0019

DESCRIPTION

The VVT (Variable Valve Timing) system is composed of an ECM, camshaft timing oil control valve assembly, camshaft timing gear assembly (for intake side), and camshaft timing gear assembly (for exhaust side). This VVT system controls the operation of camshaft timing gear assembly (for intake and exhaust sides) to obtain optimum valve timing according to the driving conditions based on various sensor signals such as intake air volume, throttle position, and engine coolant temperature. The ECM controls the camshaft timing oil control valve assembly based on these signals, obtaining the optimum relative positions of the camshafts, in turn improving fuel economy, emission efficiency, and achieving higher output. In addition, the ECM detects the actual valve timing based on the signal from the camshaft position sensor and performs feedback control to obtain ideal valve timing.

MONITOR DESCRIPTION

To monitor the correlation of the intake camshaft position and crankshaft position, the ECM checks the VVT neutral position against the VVT learning value while coasting. If the VVT neutral position is out of the specified VVT learning value range in driving cycles, the ECM illuminates the MIL and stores DTC P0016 (bank 1) or P0018 (bank 2).

To monitor the correlation of the exhaust camshaft position and crankshaft position, the ECM checks the VVT neutral position against VVT learning value while idling. If the VVT neutral position is out of the specified VVT learning value range in driving cycles, the ECM illuminates the MIL and stores DTC P0017 (bank 1) or P0019 (bank 2).

CONFIRMATION DRIVING PATTERN

1. 

2. Connect the GTS to the DLC3.

3. Turn the ignition switch to ON and turn the GTS on.

4. Clear DTCs (even if no DTCs are stored, perform the clear DTC operation) Click here.

5. Turn the ignition switch off and wait for at least 30 seconds.

6. Turn the ignition switch to ON and turn the GTS on.

7. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

8. With the vehicle stationary, depress the accelerator pedal and maintain an engine speed of between 2500 and 3000 rpm for 40 seconds or more [A].

9. When the engine speed exceeds 50 km/h {31.1 MPH}, release the accelerator pedal, brake pedal, and clutch pedal to decelerate without shifting down. Make sure to select the optimum gear in advance so that the engine speed is maintained between 2500 rpm and 1200 rpm for more than 3 seconds [B].

   CAUTION:

   When performing the confirmation driving pattern, obey all speed limits and traffic laws.

10. Stop the vehicle.

11. Idle the engine for 5 minutes or more [C].

12. Enter the following menus: Powertrain / Engine / Trouble Codes.

13. Read pending DTCs.

    Tech Tips

    
    

    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

14. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

15. Input the DTC: P0016, P0017, P0018 or P0019.

16. Check the DTC judgment result.

    GTS Display	Description
    NORMAL	DTC judgment completed System normal
    ABNORMAL	DTC judgment completed System abnormal
    INCOMPLETE	DTC judgment not completed Perform driving pattern after confirming DTC enabling conditions
    N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    Tech Tips

    
    

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

17. If the test result is INCOMPLETE or N/A and no DTC is output, perform a universal trip and check for permanent DTCs Click here.

    Tech Tips

    
    

    • If a permanent DTC is output, the system is malfunctioning.

    • If no permanent DTC is output, the system is normal.

WIRING DIAGRAM

Refer to DTC P0010 for the camshaft timing oil control valve assembly (for intake camshaft) circuit Click here.

Refer to DTC P0013 for the camshaft timing oil control valve assembly (for exhaust camshaft) circuit Click here.

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0016, P0017, P0018 OR P0019)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Enter the following menus: Powertrain / Engine / Trouble Codes.

   5. Read DTCs.

      Result

      Result	Proceed to
      DTC P0016, P0017, P0018 or P0019 is output	A
      DTC P0016, P0017, P0018 or P0019 and other DTCs are output	B

      Tech Tips

      If any DTCs other than P0016, P0017, P0018 or P0019 are output, troubleshoot those DTCs first.

   
   

   B

   GO TO DTC CHART Click here

   A

2. PERFORM ACTIVE TEST USING GTS (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY)

   Tech Tips

   If the VVT system can be operated through the Active Test, it can be assumed that the VVT system is operating normally.

   
   

   1. Connect the GTS to the DLC3.

   2. Start the engine.

   3. Turn the A/C on.

   4. Turn the GTS on.

   5. Warm up the engine.

   6. Enter the following menus: Powertrain / Engine / Active Test / Control the VVT Linear (Bank 1) or Control the VVT Exhaust Linear (Bank 1) / VVT Change Angle #1, VVT Ex Chg Angle #1, VVT Change Angle #2, VVT Ex Chg Angle #2.

   7. Perform the Active Test. Check that the displacement angle varies.

      OK
      Displacement angle varies.

   
   

   NG

   INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE OR EXHAUST CAMSHAFT) Click here

   OK

3. CHECK VALVE TIMING

   
   

   1. Check the valve timing Click here.

      Result

      Result	Proceed to
      NG	A
      OK	B

   
   

   A

   ADJUST VALVE TIMING Click here

   B

   CLEAR DTC Click here

4. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE OR EXHAUST CAMSHAFT)

   
   

   1. Inspect the camshaft timing oil control valve assembly (for intake or exhaust camshaft) Click here.

   
   

   NG

   REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (FOR INTAKE OR EXHAUST CAMSHAFT) Click here

   OK

5. INSPECT OIL CONTROL VALVE FILTER AND OIL PIPE

   
   

   1. Check that the oil control valve filter and oil pipe are not clogged.

      OK
      The oil control valve filter and oil pipe are not clogged.

   
   

   NG

   CLEAN OR REPLACE OIL CONTROL VALVE FILTER AND OIL PIPE

   OK

6. INSPECT CAMSHAFT TIMING GEAR ASSEMBLY (FOR INTAKE OR EXHAUST CAMSHAFT)

   
   

   1. Inspect the camshaft timing gear assembly (for intake camshaft or exhaust camshaft) Click here.

   
   

   NG

   REPLACE CAMSHAFT TIMING GEAR ASSEMBLY (INTAKE OR EXHAUST CAMSHAFT) Click here

   OK

7. CLEAN LUBRICATION SYSTEM

   
   

   1. Replace the engine oil Click here.

   2. Warm up the engine for 5 minutes, and then stop the engine.

   3. Replace the engine oil and filter Click here.

   
   

   NEXT

8. CLEAR DTC

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Clear the DTCs Click here.

   5. Turn the ignition switch off and wait for at least 30 seconds.

   
   

   NEXT

9. CHECK WHETHER DTC OUTPUT RECURS (DTC P0016, P0017, P0018 OR P0019)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Start the engine and warm it up.

   5. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

   6. Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.

   7. Read pending DTCs.

      Result

      Result	Proceed to
      DTC is not output	A
      DTC P0016, P0017, P0018 or P0019 is output	B

   
   

   A

   END

   B

   REPLACE ECM Click here