Functional Test
WARNING: This page is about a different car, the 2001 Acura Integra. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Press brake pedal several times. Press and hold pedal firmly for 15 seconds. If pedal sinks, master cylinder, brakeline, or caliper piston is faulty.
- Start engine with pedal pressed. If pedal sinks slightly, vacuum unit is working properly. If pedal height does not change, booster or check valve is faulty.