DTC P2004: Intake Manifold Runner Control Stuck Open (Bank 1); DTC P2006: Intake Manifold Runner Control Stuck Closed (Bank 1) [04/2013 - 08/2015]: Description
The Swirl Control Valves (SCV) are built into the intake manifold. The swirl control valves use a position sensor and a DC motor. A swirl control valve is located at one side of each pair of independent intake ports. Depending on signals from the ECM, the DC motor opens and closes the swirl control valves. The position sensor detects the opening angle of the swirl control valves. When the swirl control valves close, the velocity of the intake air flow that passes through the port on the other side of the independent intake port will become faster, enhancing lateral turbulent flow in the combustion chamber. As a result, when engine coolant temperature is low, atomization of fuel will be enhanced, stabilizing combustion in the cylinder. Also fuel consumption is decreased due to increased combustion efficiency when the engine is running at a low speed with a light load.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| P2004 | Intake Manifold Runner Control Stuck Open (Bank 1) | The swirl control valve opening angle is 20°CA or more after requesting the swirl control valve to fully close (2 trip detection logic). |
|
Comes on | DTC stored |
| P2006 | Intake Manifold Runner Control Stuck Closed (Bank 1) | The swirl control valve opening angle is less than 35°CA after requesting the swirl control valve to fully open (2 trip detection logic). |
|
Comes on | DTC stored |
HINT:
When P2004 and/or P2006 is output, use the Techstream to confirm IAC Sensor Voltage (swirl control sensor output voltage) while performing Control the SCV Duty Ratio of the Active Test.
| Control the SCV Duty Ratio | IAC Sensor Voltage |
|---|---|
| 100% | 3.2 to 4.8 V |
| -100% | 0.2 to 1.0 V |