Toyota
Camry ACV40 GSV40
Repair Manual
2Az-Fe Engine Control System
Sfi System
DTC P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
DESCRIPTION
The ECM optimizes the valve timing by using the Variable Valve Timing (VVT) system to control the intake camshaft. The VVT system includes the ECM, the camshaft timing oil control valve assembly and the VVT controller (camshaft timing gear assembly). The ECM sends a target duty-cycle control signal to the camshaft timing oil control valve assembly. This control signal regulates the oil pressure supplied to the VVT controller. The VVT controller can advance or retard the intake camshaft.| DTC No. | Detection Condition | Trouble Area |
| P0016 | Deviation between crankshaft and camshaft position sensor signals (2 trip detection logic) |
|
WIRING DIAGRAM
Refer to DTC P0010 (Click here)INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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.
Connect the intelligent tester to the DLC3.
Turn the ignition switch to ON.
Turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the DTCs.
- Result:
Result Proceed to DTC P0016 is output A DTC P0016 and other DTCs are output B
- HINT:
- If any DTCs other than P0016 are output, troubleshoot those DTCs first.
| GO TO DTC CHART (Click here) | |||
| A | |
 |
Connect the intelligent tester to the DLC3.
Start the engine and turn the tester on.
Turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Linear (Bank 1).
Check the engine speed while operating the camshaft timing oil control valve assembly using the tester.
- OK:
Tester Operation Specified Condition 0% Normal engine speed 100% Engine idles roughly or stalls
| Go to step 4 | |||
| OK | |
|
Connect the intelligent tester to the DLC 3.
Turn the ignition switch to ON.
Turn the tester on.
Clear the DTCs (Click here).
Start the engine and warm it up.
Idle the engine for 5 minutes or more.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the pending DTCs.
- HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Drive the vehicle for 2 to 3 minutes.
- CAUTION:
- When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Idle the engine for 5 minutes or more.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the pending DTCs.
- Result:
Result Proceed to DTC is not output A DTC P0016 is output B
- HINT:
- DTC P0016 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. These foreign objects may then be captured by the oil filter.
| Go to step 4 | |||
| A | |
 | |
| CHECK FOR INTERMITTENT PROBLEMS (Click here) | |
Remove the camshaft timing oil control valve assembly.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 6.9 to 7.9 Ω
Text in Illustration *1 Component with harness connected
(Camshaft Timing Oil Control Valve Assembly)
Connect the positive (+) battery terminal to terminal 1 and connect the negative (-) battery terminal to terminal 2. Check the valve operation.
- OK:
- Valve moves quickly.
Reinstall the camshaft timing oil control valve assembly.
| REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (Click here) | |||
| OK | |
|
Remove the cylinder head cover.
Turn the crankshaft pulley, then align its groove with the timing mark "0" on the timing chain cover.
Check that the point marks on the camshaft timing gears are aligned with the timing chain cover surface as shown in the illustration.
If not, turn the crankshaft 1 revolution (360°), then align the marks as above.- OK:
- Alignment marks on camshaft timing gears are aligned as shown in the illustration.
Text in Illustration *1 Alignment Marks *2 Groove
Reinstall the cylinder head cover.
| ADJUST VALVE TIMING (Click here) | |||
| OK | |
|
Remove the oil control valve filter (Click here).
Check that the oil control valve filter is not clogged.
- OK:
- Filter is not clogged.
Text in Illustration *1 Oil Control Valve Filter
Reinstall the oil control valve filter (Click here).
| REPLACE OIL CONTROL VALVE FILTER (Click here) | |||
| OK | |
|
Inspect the camshaft timing gear assembly (Click here).
| REPLACE CAMSHAFT TIMING GEAR ASSEMBLY (Click here) | |||
| OK | |
|
Connect the intelligent tester to the DLC 3.
Turn the ignition switch to ON.
Turn the tester on.
Clear the DTCs (Click here).
Start the engine and warm it up.
Idle the engine for 5 minutes or more.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the pending DTCs.
- HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
Drive the vehicle for 2 to 3 minutes.
- CAUTION:
- When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Idle the engine for 5 minutes or more.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read the pending DTCs.
- Result:
Result Proceed to DTC is not output A DTC P0016 is output B
- HINT:
- DTC P0016 may be stored when foreign objects in the engine oil are caught in some parts of the system. The DTC will remain stored even if the system returns to normal after a short time. These foreign objects may then be captured by the oil filter.
| REPLACE ECM (Click here) | |||
| A | |
| |
| CHECK FOR INTERMITTENT PROBLEMS (Click here) | |