Mode B: (Negative pressure sealed)
WARNING: This page is about a different variant/trim than selected.
Introduce negative pressure in the intake manifold to the tank.
Approx. 0 → -1.4 kPa (0 → -10.5 mmHg, 0 → -0.4 inHg)
When the pressure above (desired negative pressure) is reached, enters Mode C.
In this case, if the tank pressure does not reach the target negative pressure, judge that there is a large leakage in the system and terminate the evaporative emission control system diagnosis.