Inspection Procedure 12: ASC-ECU power supply circuit system: 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.
ASC-ECU contains the power supply circuit (IG1 terminal) for ASC-ECU. When the ignition switch (IG1) is turned ON, the voltage is applied to the relay incorporated in ETACS-ECU to turn ON the relay, and the power is supplied from the fusible link.
ASC-ECU contains the power supply circuit (+BM terminal) for the pump motor. The pump motor is energized by the motor switch, which is incorporated in ASC-ECU.
When malfunction occurs in ASC-ECU power supply, the communication with scan tool (M.U.T.-III) becomes unavailable.