To reach the brake fluid level sensor/switch, detach the wiring harness connector first from the brake fluid reservoir level switch. After that, press down on the tabs which will also be located on the opposite end of the brake fluid level switch, with your fingers. Hand crushing the retaining tabs, slide the brake fluid level switch's connector end out of the master cylinder brake fluid reservoir. To fit the brake fluid level switch into the reservoir, push it left into the container and lock the retaining tabs. After that, join the vehicle wiring harness connector to the brake fluid level switch.