Dtc P0013 Camshaft Position B Actuator Circuit / Open (Bank 1)
Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
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 P0013 Camshaft Position "B" Actuator Circuit / Open (Bank 1) |
DESCRIPTION
The Variable Valve Timing (VVT) system includes the ECM, exhaust camshaft timing oil control valve assembly and VVT controller. The ECM sends a target duty cycle control signal to the exhaust camshaft timing oil control valve assembly. This control signal regulates the oil pressure supplied 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 exhaust camshaft timing oil control valve assembly, based on the signals transmitted by several sensors. The VVT controller regulates the exhaust camshaft angle using oil pressure through the exhaust 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 exhaust 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
|
P0013
| An open or short in the camshaft timing oil control valve for the exhaust camshaft circuit (1 trip detection logic).
| - Open or short in camshaft timing oil control valve circuit for exhaust camshaft
- Camshaft timing oil control valve assembly for exhaust camshaft
- ECM
|
WIRING DIAGRAM
INSPECTION PROCEDURE
- HINT:
- Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions 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 and turn the tester on.
Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust Linear (Bank 1).
Check the engine speed when the oil control valve is operated using the intelligent tester when the engine coolant temperature is 50°C (122°F) or less.
- 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
|
-128% (Oil control valve OFF)
| Normal engine speed
|
127% (Oil control valve ON)
| Engine idles roughly or stalls (soon after oil control valve switched from OFF to ON)
|
| 2.INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY |
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 without harness connected
(Camshaft Timing Oil Control Valve)
|
Apply positive (+) battery voltage to terminal 1 and negative (-) battery voltage 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
|
B115-1 - B32-75 (OE1+)
| Always
| Below 1 Ω
|
B115-2 - B32-97 (OE1-)
| Always
| Below 1 Ω
|
- Standard Resistance (Check for Short):
Tester Connection
| Condition
| Specified Condition
|
B115-1 or B32-75 (OE1+) - Body ground
| Always
| 10 kΩ or higher
|
B115-2 or B32-97 (OE1-) - Body ground
| Always
| 10 kΩ or higher
|
Text in Illustration*1
| Front view of wire harness connector
(to Camshaft Timing Oil Control Valve)
|
*2
| Front view of wire harness connector
(to ECM)
|
Reconnect the camshaft timing oil control valve assembly connector.
Reconnect the ECM connector.
| | REPAIR OR REPLACE HARNESS OR CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM) |
|
|
