Dtc P0010 Camshaft Position A Actuator Circuit (Bank 1)
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE)
INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM)
DTC P0010 Camshaft Position "A" Actuator Circuit (Bank 1) |
DESCRIPTION
- HINT:
- This DTC relates to the oil control valve.
The Variable Valve Timing (VVT) system includes the ECM, intake camshaft timing oil control valve assembly and VVT controller. The ECM sends a target duty cycle control signal to the intake camshaft timing oil control valve assembly. This control signal regulates the oil pressure applied to the VVT controller. Camshaft timing control is performed according to engine operating conditions such as the intake air volume, throttle valve position and engine coolant temperature. The ECM controls the intake camshaft timing oil control valve assembly based on the signals transmitted by several sensors. The VVT controller regulates the intake camshaft angle using oil pressure through the intake camshaft timing oil control valve assembly. As a result, the relative positions of the camshaft and crankshaft are optimized, the engine torque and fuel economy improve, and the exhaust emissions decrease under overall driving conditions. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors and performs feedback control. This is how the target intake valve timing is verified by the ECM.
DTC No.
| DTC Detection Condition
| Trouble Area
|
P0010
| An open or short in the camshaft timing oil control valve circuit (1 trip detection logic).
| - Open or short in camshaft timing oil control valve circuit
- Camshaft timing oil control valve assembly
- ECM
|
WIRING DIAGRAM
INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. 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.
1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE CAMSHAFT TIMING OIL CONTROL VALVE) |
Connect the intelligent tester to the DLC3.
Start the engine.
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 using the intelligent tester.
- HINT:
- When performing the Active Test, make sure the air conditioning is on.
- Make sure the engine coolant temperature when the engine is started is 30°C (86°F) or less.
- OK:
Tester Operation
| Specified Condition
|
0%
| Normal engine speed
|
100%
| Engine idles roughly or stalls
|
- HINT:
- Refer to "Data List / Active Test" [VVT OCV Duty #1 and VVT Change Angle #1] (HILUX_TGN26 RM000000SXS05CX.html).
2.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY |
Inspect the camshaft timing oil control valve assembly (HILUX_TGN26 RM000000VVX01NX_01_0001.html).
Connect the positive (+) battery terminal to terminal 1 and the negative (-) battery terminal to terminal 2. Check the valve operation.
- OK:
- Valve moves quickly.
Reinstall the camshaft timing oil control valve assembly.
3.CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) |
Disconnect the camshaft timing oil control valve assembly connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
Tester Connection
| Condition
| Specified Condition
|
C74-2 - C96-14 (OC1+)
| Always
| Below 1 Ω
|
C74-1 - C96-9 (OC1-)
| Always
| Below 1 Ω
|
- Standard Resistance (Check for Short):
Tester Connection
| Condition
| Specified Condition
|
C74-2 or C96-14 (OC1+) - Body ground
| Always
| 10 kΩ or higher
|
C74-1 or C96-9 (OC1-) - Body ground
| Always
| 10 kΩ or higher
|
Reconnect the camshaft timing oil control valve assembly connector.
Reconnect the ECM connector.
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|