Mode C: (Check increasing pressure)

WARNING: This page is about a different variant/trim than selected.

Stop the introduction of negative pressure. (Wait until the tank pressure returns to the start level of P2 calculation.)

Change to Mode D when the tank pressure returns to the start level of P2 calculation.

Judge immediate OK and change to Mode E when it does not return in spite of spending the specified time.

MODE C (CHECK INCREASING PRESSURE)

Tank pressure when P2 calculation started	Time for immediate OK judgment
-1.3 kPa (-9.75 mmHg, - 0.38 inHg)	15 seconds

Mode D: (Measurement of negative pressure changes)

Monitor the pressure variation in the tank in Mode Z. In this case, the tank pressure increases, that is, the pressure becomes as high as the atmospheric air pressure, because evaporator is generated. However, if any leakage exists, the pressure increases additionally in proportion to this leakage. The pressure variation of this tank is P2.

After calculating P2, perform following small leak diagnosis.