Mode C (Switching valve operation confirmation)
WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Purpose: Measure the pressure increase when switching valve is changed from open to close, and detect the stuck to open/close malfunctions of the switching valve.
Judge as NG when the following conditions are established.
JUDGMENT VALUE REFERENCE CHART
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| Elapsed time after mode change | ≥ 12000 ms | P2404 |
| Pressure sensor output value - Reference pressure for setting the target negative pressure | < 0.2 kPa (1.68 mmHg, 0.1 inHg) |