Mode D: (Calculation of negative pressure variation)
Monitor the tank pressure on Mode D, and calculate the tank pressure variation (P2) and time until it returns to the end level of P2 (evpdset). When it returns, change to Mode E. Make advanced OK judgment or cancel depending on the P2 level, when it doesn't return in spite of spending the specified time.
Judge OK when the criteria below are completed.
Judgment Value
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| Advanced OK judgment #1 | P0456 | |
| Mode D time | >/= 30s | |
| Tank pressure | <-1.8kPa(-13.4 mmHg, -0.53 inHg) | |
| Advanced OK judgment #2 | ||
| Mode D time | >/= 200s | |
| P2 | >/= 0.9-1.3 kPa (7-9.6 mmHg, 0.28-0.38 inHg) |