DESCRIPTION
In the VVT (Variable Valve Timing) system, the appropriate intake and exhaust valve open and close timing is controlled by the ECM. The ECM performs intake and exhaust valve control by performing the following: 1) controlling the camshaft, cam timing oil control solenoid assembly, camshaft timing gear bolt (camshaft timing oil control valve) and operating the camshaft timing gear; and 2) changing the relative positions of the camshaft and crankshaft.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
---|---|---|---|---|---|
P001600 | Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A | Deviation in the crankshaft position sensor signal and camshaft sensor (for intake camshaft) signal (2 trip detection logic). |
| Comes on | SAE: P0016 |
P001700 | Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B | Deviation in the crankshaft position sensor signal and camshaft position sensor (for exhaust camshaft) signal (2 trip detection logic). |
| Comes on | SAE: P0017 |
MONITOR DESCRIPTION
To monitor the correlation of the intake 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 intake 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 illuminates the MIL and stores DTC P001600.
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 most advanced angle while the engine is idling. If the VVT learned value is out of the specified range in consecutive driving cycles, the ECM illuminates the MIL and stores DTC P001700.
MONITOR STRATEGY
Required Sensors/Components (Main) | Camshaft timing gear assembly Camshaft timing exhaust gear assembly |
Required Sensors/Components (Related) | Camshaft position sensor Crankshaft position sensor |
Frequency of Operation | Continuous |
TYPICAL ENABLING CONDITIONS
Engine speed | 500 to 1000 rpm |
CONFIRMATION DRIVING PATTERN
HINT:
GTS Display | Description |
---|---|
NORMAL |
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ABNORMAL |
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INCOMPLETE |
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HINT:
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
HINT:
HINT:
CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. | CHECK FOR ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P001600 OR P001700) |
(a) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
P001600 or P001700 and other DTCs are output | A |
P001600 or P001700 is output | B |
HINT:
If any DTCs other than P001600 or P001700 is output, troubleshoot those DTCs first.
A | GO TO DTC CHART |
|
2. | PERFORM ACTIVE TEST USING GTS (CONTROL THE INTAKE VVT OCV DUTY RATIO BANK 1 OR CONTROL THE EXHAUST VVT OCV DUTY RATIO BANK 1) |
HINT:
If the VVT system can be operated through the Active Test, it can be assumed that the VVT system is operating normally.
(a) Start the engine.
(b) Perform the Active Test. Check that the displacement angle varies.
Powertrain > Engine > Active Test Active Test Display |
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Control the Intake VVT OCV Duty Ratio Bank 1 |
Data List Display |
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Intake VVT Change Angle Bank 1 |
Intake VVT OCV Control Duty Ratio Bank 1 |
OK:
Displacement angle varies.
NG | GO TO STEP 4 |
|
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:
Click here
OK | GO TO STEP 9 |
NG | REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA |
4. | INSPECT CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (FOR INTAKE CAMSHAFT) |
Click here
NG | REPLACE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY (FOR INTAKE CAMSHAFT) |
|
5. | INSPECT 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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6. | INSPECT CAMSHAFT TIMING GEAR BOLT (INTAKE CAMSHAFT TIMING OIL CONTROL VALVE) |
Click here
NG | REPLACE CAMSHAFT TIMING GEAR BOLT (INTAKE CAMSHAFT TIMING OIL CONTROL VALVE) |
|
7. | INSPECT CAMSHAFT TIMING VALVE ASSEMBLY (EXHAUST CAMSHAFT TIMING OIL CONTROL VALVE) |
Click here
NG | REPLACE CAMSHAFT TIMING VALVE ASSEMBLY (EXHAUST CAMSHAFT TIMING OIL CONTROL VALVE) |
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8. | CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
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9. | CHECK WHETHER DTC OUTPUT RECURS (DTC P001600 OR P001700) |
(a) Start the engine and warm it up.
(b) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
(c) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
DTCs are not output | A |
P001600 or P001700 is output | B |
A | CHECK FOR INTERMITTENT PROBLEMS |
|
10. | REPLACE CAMSHAFT TIMING GEAR ASSEMBLY OR CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY |
HINT:
Click here
Perform "Inspection After Repair" after replacing the camshaft timing gear assembly or camshaft timing exhaust gear assembly.
Click here
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11. | CLEAR DTC |
(a) Clear the DTCs.
Powertrain > Engine > Clear DTCs(b) Turn the ignition switch off and wait for at least 30 seconds.
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12. | CHECK WHETHER DTC OUTPUT RECURS (DTC P001600 OR P001700) |
(a) Start the engine and warm it up.
(b) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
(c) Read the DTCs.
Powertrain > Engine > Trouble Codes Result | Proceed to |
---|---|
DTCs are not output | A |
P001600 or P001700 is output | B |
A | CHECK FOR INTERMITTENT PROBLEMS |
B | REPLACE ECM |
No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.
Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.