DESCRIPTION
In the VVT (Variable Valve Timing) system, the appropriate exhaust valve open and close timing is controlled by the ECM. The ECM performs exhaust valve control by performing the following: 1) controlling the exhaust camshaft cam timing oil control solenoid assembly, camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]) and operating the camshaft timing exhaust gear; and 2) changing the relative positions of the camshaft and crankshaft.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
---|---|---|---|---|---|---|
P001700 | Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B | Deviation in the crankshaft position sensor signal and VVT sensor (for exhaust camshaft of bank 1) signal (2 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0017 |
P001900 | Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor B | Deviation in the crankshaft position sensor signal and VVT sensor (for exhaust camshaft of bank 2) signal (2 trip detection logic). |
| Comes on | DTC stored | SAE Code: P0019 |
MONITOR DESCRIPTION
To monitor the correlation of the exhaust camshaft position and crankshaft position, the ECM checks the VVT learned value while the engine is idling. The VVT learned value is calibrated based on the camshaft position and crankshaft position. The exhaust valve timing is set to the neutral position while the engine is idling. If the VVT learned value is out of the specified range in consecutive driving cycles, the ECM stores a DTC.
MONITOR STRATEGY
Related DTCs | P0017: Camshaft timing misalignment at idling (for exhaust camshaft of bank 1) P0019: Camshaft timing misalignment at idling (for exhaust camshaft of bank 2) |
Required Sensors/Components (Main) | Camshaft timing exhaust gear assembly |
Required Sensors/Components (Related) | VVT sensor Crankshaft position sensor |
Frequency of Operation | Continuous |
Duration | Within 1 minute |
MIL Operation | 2 driving cycles |
Sequence of Operation | None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored | None |
Engine speed | 500 to 1000 rpm |
TYPICAL MALFUNCTION THRESHOLDS
Either of the following conditions is met | A or B |
A. VVT learned value at maximum advanced valve timing | Less than 105.3°CA (Crankshaft Angle) |
B. VVT learned value at maximum advanced valve timing | More than 130.4°CA (Crankshaft Angle) |
CONFIRMATION DRIVING PATTERN
HINT:
Click here
Click here
HINT:
Techstream Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
HINT:
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
CAUTION / NOTICE / HINT
HINT:
*: The No. 1 cylinder is the cylinder which is farthest from the transaxle.
PROCEDURE
1. | CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P001700 OR P001900) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Trouble Codes.
(e) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
DTC P001700 or P001900 is output | A |
DTC P001700 or P001900 and other DTCs are output | B |
HINT:
If any DTCs other P001700 or P001900 are output, troubleshoot those DTCs first.
B | GO TO DTC CHART |
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2. | PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EXHAUST VVT OCV DUTY RATIO) |
HINT:
If the VVT system can be operated through the Active Test, it can be assumed that the VVT system is operating normally.
(a) Connect the Techstream to the DLC3.
(b) Start the engine.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine / Active Test / Control the Exhaust VVT OCV Duty Ratio Bank 1 or Control the Exhaust VVT OCV Duty Ratio Bank 2 / Data List / Exhaust VVT Change Angle Bank 1 or Exhaust VVT Change Angle Bank 2.
Powertrain > Engine > Active Test Active Test Display |
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Control the Exhaust VVT OCV Duty Ratio Bank 1 |
Data List Display |
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Exhaust VVT Change Angle Bank 1 |
Active Test Display |
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Control the Exhaust VVT OCV Duty Ratio Bank 2 |
Data List Display |
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Exhaust VVT Change Angle Bank 2 |
(e) Perform the Active Test. Check that the displacement angle varies.
OK:
Displacement angle varies.
NG | GO TO STEP 4 |
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3. | CHECK ENGINE MECHANICAL SYSTEM |
(a) Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain.
HINT:
Perform "Inspection After Repair" after repairing or replacing the engine mechanical system.
Click here
OK | GO TO STEP 7 |
NG | REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |
4. | INSPECT CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (FOR EXHAUST CAMSHAFT) |
(a) Inspect the cam timing oil control solenoid assembly (for exhaust camshaft).
Click here
NG | REPLACE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (FOR EXHAUST CAMSHAFT) |
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5. | INSPECT CAMSHAFT TIMING GEAR BOLT (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY [FOR EXHAUST CAMSHAFT]) |
(a) Inspect the camshaft timing gear bolt (camshaft timing oil control valve assembly [for exhaust camshaft]).
NG | REPLACE CAMSHAFT TIMING GEAR BOLT (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY [FOR EXHAUST CAMSHAFT]) |
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6. | INSPECT OIL CONTROL VALVE FILTER (FOR EXHAUST CAMSHAFT) |
*A | for Exhaust Camshaft of Bank 1 | *B | for Exhaust Camshaft of Bank 2 |
*1 | Oil Control Valve Filter | - | - |
(a) Remove the oil control valve filter (for exhaust camshaft of bank 1) or oil control valve filter (for exhaust camshaft of bank 2).
(b) Check that the filter is not clogged.
OK:
Filter is not clogged.
NG | REPLACE OIL CONTROL VALVE FILTER (FOR EXHAUST CAMSHAFT) |
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7. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTC.
Powertrain > Engine > Clear DTCs(e) Turn the engine switch off and wait for at least 30 seconds.
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8. | CHECK WHETHER DTC OUTPUT RECURS (DTC P001700 OR P001900) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
(c) Read the pending DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
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DTCs are not output | A |
DTC P001700 or P001900 is output | B |
A | CHECK FOR INTERMITTENT PROBLEMS |
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9. | REPLACE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY |
(a) Replace the camshaft timing exhaust gear assembly.
Click here
HINT:
Perform "Inspection After Repair" after replacing the camshaft timing exhaust gear assembly.
Click here
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10. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Clear the DTC.
Powertrain > Engine > Clear DTCs(e) Turn the engine switch off and wait for at least 30 seconds.
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11. | CHECK WHETHER DTC OUTPUT RECURS (DTC P001700 OR P001900) |
(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
(b) Enter the following menus: Powertrain / Engine / Trouble Codes / Pending.
(c) Read the pending DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
DTCs are not output | A |
DTC P001700 or P001900 is output | B |
A | END |
B | REPLACE ECM |