Description

PDWA Brake Failure Switch for the dual-circuit braking system, mounted on the brake master cylinder.

The PDWA (Pressure Differential Warning Actuator) switch monitors hydraulic pressure across both independent brake circuits. If a pressure differential is detected – indicating a fluid leak or circuit failure in one circuit – the switch activates the brake failure warning lamp on the instrument panel. This is the metric-thread type and installs directly onto the master cylinder.