SFI SYSTEM, Diagnostic DTC:P0010, P0020
| DTC Code | DTC Name |
|---|---|
| P0010 | Camshaft Position "A" Actuator Circuit (Bank 1) |
| P0020 | Camshaft Position "A" Actuator Circuit (Bank 2) |
DESCRIPTION
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These DTCs are designed to detect opens or shorts in the camshaft timing oil control valve circuit. If the duty-cycle for the camshaft timing oil control valve is excessively high or low while the engine is running, the ECM will illuminate the MIL and store the DTC.
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The VVT (Variable Valve Timing) system adjusts the intake valve timing to improve driveability. The engine oil pressure turns the camshaft actuator to adjust the valve timing. The camshaft timing oil control valve is a solenoid valve and switches the engine oil line. The valve moves when the ECM applies 12 V to the solenoid. The ECM changes the energizing time of the solenoid (duty-cycle) in accordance with the camshaft position, crankshaft position, throttle position, etc.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| P0010 | Open or short in the camshaft timing oil control valve (for intake side of bank 1) circuit (1 trip detection logic). |
|
| P0020 | Open or short in the camshaft timing oil control valve (for intake side of bank 2) circuit (1 trip detection logic). |
|
Tech Tips
These DTCs relate to the camshaft timing oil control valves.
MONITOR DESCRIPTION
These DTCs are designed to detect opens or shorts in the camshaft timing oil control valve circuit. If the duty-cycle for the camshaft timing oil control valve is excessively high or low while the engine is running, the ECM will illuminate the MIL and store the DTC.
WIRING DIAGRAM
INSPECTION PROCEDURE
Tech Tips
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Read freeze frame data using the GTS. 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.
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Bank 1 refers to the bank that includes the No. 1 cylinder*.
*: The No. 1 cylinder is the cylinder which is farthest from the transmission.
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Bank 2 refers to the bank that does not include the No. 1 cylinder.
PROCEDURE
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CHECK DTC (DTC P0010 OR P0020)
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Clear the DTCs after recording the freeze frame data and DTCs.
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Turn the ignition switch off.
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Allow the engine to idle and check for DTCs.
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Check that P0010 or P0020 is output.
OK P0010 or P0020 is output.
NG 
CHECK FOR INTERMITTENT PROBLEMS Click here
OK 
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INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY
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Inspect the camshaft timing oil control valve assembly (for Intake Side of Bank 1, 2) Click here.
NG
REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY Click here
OK
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CHECK HARNESS AND CONNECTOR (CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY - ECM)
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Disconnect the camshaft timing oil control valve assembly connector.
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Disconnect the ECM connector.
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Measure the resistance according to the value(s) in the table below.
Standard Resistance for LHD Tester Connection Condition Specified Condition C27-1 - C45-58 (OC1+) Always Below 1 Ω C28-1 - C45-52 (OC2+) Always Below 1 Ω C27-2 - C45-57 (OC1-) Always Below 1 Ω C28-2 - C45-51 (OC2-) Always Below 1 Ω C27-1 or C45-58 (OC1+) - Body ground Always 10 kΩ or higher C28-1 or C45-52 (OC2+) - Body ground Always 10 kΩ or higher C27-2 or C45-57 (OC1-) - Body ground Always 10 kΩ or higher C28-2 or C45-51 (OC2-) - Body ground Always 10 kΩ or higher for RHD Tester Connection Condition Specified Condition C27-1 - C46-58 (OC1+) Always Below 1 Ω C28-1 - C46-52 (OC2+) Always Below 1 Ω C27-2 - C46-57 (OC1-) Always Below 1 Ω C28-2 - C46-51 (OC2-) Always Below 1 Ω C27-1 or C46-58 (OC1+) - Body ground Always 10 kΩ or higher C28-1 or C46-52 (OC2+) - Body ground Always 10 kΩ or higher C27-2 or C46-57 (OC1-) - Body ground Always 10 kΩ or higher C28-2 or C46-51 (OC2-) - Body ground Always 10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK 
REPLACE ECM Click here
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