Diagnostic Method: Notes
| Mode | Explanation of Mode | Diagnosis period |
|---|---|---|
| Z | Barometric pressure measurement | 70 s or less |
| A | Vacuum pump operation confirmation and characteristics stability | 7 s or less |
| B | Measurement of reference pressure for setting the target negative pressure | 350 s or less |
| C | Switching valve operation confirmation | 12 s or less |
| D | Clogging of pipe diagnosis and leak pressure measurement | 900 s or less |
| E | Reference pressure measurement for judgment | 50 s or less |