Circuit Operation
WARNING: This page is about a different variant/trim than selected.
- ASC-ECU contains the power supply circuit (terminal No. 1) for the motor. The pump motor is energized by the pump motor switch, which is incorporated in ASC-ECU.
- The pump motor switch in ASC-ECU is turned off at all times unless during the motor solenoid valve check performed when the vehicle is started.
- ASC-ECU activates the pump motor by turning on the ECU built-in pump motor switch.