Circuit Operation

WARNING: This page is about a different variant/trim than selected.

The ABS-ECU contains the power supply circuit (terminal 1) for the solenoid valve. The solenoid valve is energized by the valve relay, which is integrated in the ABS-ECU.
The valve relay, which is integrated in the ABS-ECU, is always energizing the solenoid valve unless the initial check is in progress when the ignition switch is turned on.
The ABS-ECU activates the solenoid valve by turning on its driving transistor.