2. Dump Mode
WARNING: This page is about a different car, the 2007 Kia Optima, 2007 Kia Magentis, 2006 Kia Optima, and 2006 Kia Magentis. However, it is still accessible from the selected car via links, so may be relevant.
Under the emergency braking, if the wheels start to lock up, HECU sends a signal to the solenoid valve to decrease the brake fluid, then voltage is supplied to each solenoid. At this time inlet valve is closed and brake fluid is blocked from the master cylinder. Conversely outlet valve is opened and brake fluid passes through wheel cylinder to reservoir, resulting in pressure decrease.
SOLENOID VALVE REFERENCE CHART
| Solenoid | State | Valve | Passage | Pump motor |
|---|---|---|---|---|
| Inlet valve (NO) | ON | Close | Master cylinder <=> Wheel cylinder | ON |
| Outlet valve (NC) | ON | Open | Wheel cylinder <=> Reservoir |