Code No. C104B FL inlet valve; Code No. C104F FR inlet valve; Code No. C1053 RL inlet valve; Code No. C1057 RR inlet valve; Code No. C105F FL outlet valve; Code No. C1063 FR outlet valve; Code No. C1067 RL outlet valve; Code No. C105B RR outlet valve; Code No. C1200 FL-RR cut valve; Code No. C1204 FR-RL cut valve; Code No. C1208 FL-RR suction valve; Code No. C120C FR-RL suction valve: Operation

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

ASC-ECU contains the power supply circuit (+BV terminal) for the solenoid valve. The solenoid valve is energized by the valve relay, which is incorporated in ASC-ECU.
The valve relay, which is incorporated in ASC-ECU, is always energizing the solenoid valve unless the initial check is in progress when the ignition switch is turned on, and the recurrent system check is in progress.
ASC-ECU activates the solenoid valve by turning on its driving transistor.