Increase Mode
ABS OPERATION - INCREASE MODE
| Solenoid valve | State | Valve | Passage | Pump motor |
|---|---|---|---|---|
| IN (NO) | OFF | OPEN | Master cylinder <==> Wheel cylinder | ON |
| OUT (NC) | OFF | CLOSE | Wheel cylinder <==> Reservoir |
If HECU determines there's no lock-up in the wheel, HECU cuts voltage to solenoid valve. So voltage is not supplied to each solenoid valve, brake fluid passes through the inlet valve to wheel cylinder, resulting in pressure increase.