Diagnostic Method: Notes
| Mode | Explanation of Mode | Diagnosis period | DTC |
|---|---|---|---|
| A | Vacuum pump operation confirmation and characteristics stability | 7 s or less | P2404 |
| B | Measurement of reference pressure for setting the target negative pressure | 350 s or less | P2404 |
| C | Switching valve operation confirmation | 12 s or less | P2404 |
| D | 0.04 inch leak pressure measurement | 900 s or less | P0455 |
| 0.02 inch leak pressure measurement | P0456 | ||
| Clogging of pipe diagnosis and leak pressure measurement | P1451 | ||
| E | Reference pressure measurement for judgment | 50 s or less | P2401 |