SFI SYSTEM(w/ Canister Pump Module), 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
The electric VVT changes the valve timing using a motor. In comparison to a conventional hydraulic VVT, the valve timing range is greater and the VVT operates even when the engine speed is low or the engine is cold. As a result, it is possible to increase engine output and mileage.
The cam timing control motor with EDU assembly is equipped with a self diagnostic function, which is used to output diagnosis signals (VTM) to the ECM.
| Part and Terminal Name | Function |
|---|---|
| Cam timing control motor with EDU assembly | Through its electric motor, operates camshaft timing intake gear assembly. Interior driver detects and performs malfunction diagnosis of motor control, motor speed and rotation direction. |
| Camshaft timing intake gear assembly | Changes valve timing by rotating timing chain sprocket. |
| ECM | Outputs target speed and motor rotation direction in response to driving conditions. |
| +B | Power supply (when engine switch on (IG), 12 V or higher) |
| PGND | Power supply ground |
| VTP | Inputs motor activation signal from ECM. |
| VTS | Outputs actual motor speed. |
| VTD | Outputs actual rotation direction. |
| VTM | Outputs malfunction diagnosis results as a duty ratio.
|
| *a | Motor Rotation Signal Output | *b | Motor Operation Request |
| *c | Diagnostic Signal Output | *d | Logic Circuit |
| *e | Overcurrent Protection | *f | Power Transistor |
| *g | Motor | *h | Rotation Sensor |
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P0010 | Camshaft Position "A" Actuator Circuit (Bank 1) | One of the following conditions is met for 3 seconds or more (1 trip detection logic).
|
|
Comes on | DTC stored |
| P0020 | Camshaft Position "A" Actuator Circuit (Bank 2) | One of the following conditions is met for 3 seconds or more (1 trip detection logic).
|
|
Comes on | DTC stored |
| Vehicle Condition | Fail-Safe |
|---|---|
|
|
MONITOR DESCRIPTION
These DTCs are output when an IC overheat malfunction or an overcurrent malfunction is detected in the intake side cam timing control motor with EDU assembly. The cam timing control motor with EDU assembly is equipped with a self diagnostic function, which is used to output diagnosis signals (VTM) to the ECM. If the ECM receives a motor driver interior malfunction signal, a DTC is output immediately (1 trip detection logic).
CONFIRMATION DRIVING PATTERN
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Connect the GTS to the DLC3.
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Turn the engine switch on (IG).
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Turn the GTS on.
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Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the engine switch off and wait for at least 30 seconds.
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Turn the engine switch on (IG).
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Turn the GTS on.
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Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.
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Idle the engine for 10 seconds.
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Enter the following menus: Powertrain / Engine / Trouble Codes.
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Read the pending DTCs.
Tech Tips
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If a pending DTC is output, the system is malfunctioning.
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If a pending DTC is not output, perform the following procedure.
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Enter the following menus: Powertrain / Engine / Utility / All Readiness.
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Input the DTC: P0010 or P0020.
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Check the DTC judgment result.
GTS Display Description NORMAL
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DTC judgment completed
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System normal
ABNORMAL
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DTC judgment completed
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System abnormal
INCOMPLETE
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DTC judgment not completed
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Perform driving pattern after confirming DTC enabling conditions
N/A
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Unable to perform DTC judgment
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Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
Tech Tips
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If the judgment result shows NORMAL, the system is normal.
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If the judgment result shows ABNORMAL, the system has a malfunction.
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If the judgment result shows INCOMPLETE or N/A, perform the Confirmation Driving Pattern and check the DTC judgment result again.
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CAUTION / NOTICE / HINT
Tech Tips
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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.
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Read freeze frame data using the GTS. 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.
PROCEDURE
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INSPECT CAMSHAFT TIMING GEAR ASSEMBLY (BANK 1 OR BANK 2)
*1 Camshaft Timing Intake Gear Assembly *2 Eccentric Shaft *a Spline
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Turn the engine switch off.
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Remove the cam timing control motor with EDU assembly.
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Check if the camshaft timing intake gear assembly eccentric shaft rotates smoothly.
OK Rotates smoothly. Tech Tips
Perform "Inspection After Repair" after repairing or replacing the camshaft timing intake gear assembly or cam timing control motor with EDU assembly.
Result Proceed to OK NG
OK 
REPLACE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY (BANK 1 OR BANK 2) Click here
NG
REPLACE CAMSHAFT TIMING INTAKE GEAR ASSEMBLY (BANK 1 OR BANK 2) Click here
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