Depressurizing Brake System
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 1992 Mercury Cougar, 1992 Lincoln Mark VII, 1992 Ford Thunderbird, 1991 Mercury Cougar, and 1991 Lincoln Mark VII. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Under normal operating conditions, ABS system is under high pressure. Before servicing any component, or opening fluid reservoir, hydraulic system pressure MUST be discharged.
With ignition off, pump brake pedal a minimum of 20-25 times using full pedal strokes. When definite increase in pedal effort is felt, pump pedal 2 more times.