1991 Honda Accord Owner's Manual - Page 19
1991 Honda Accord Manual
Page 19 highlights
Anti-lock Brake System (SE) Anti-lock brake system helps to maintain the road holding and tractability of your car during severe braking, and under slippery road conditions. The Anti-lock brake system provides assistance to help prevent the wheels from locking (thus reducing the chance of skidding) to ensure controllable deceleration. When sudden braking might otherwise lock one or more wheels, the Anti-lock brake system temporarily reduces the braking pressure to the wheel or wheels about to lock to ensure continued braking efficiency. When the Anti-lock brake system is regulating the braking pressure, the brake pedal pulsates slightly to make the driver aware that the system is compensating for critical braking conditions. The pulsating brake pedal can be an indication of hazardous road conditions, and a reminder for you to take extra care. Under such conditions, you should continue braking hard without pumping the brake. Don't mix different diameter tires; it will confuse the Anti-lock brake system computer which monitors the road speed of each wheel. For example, if one or more tires are larger than the others, the computer will think they are rolling more slowly (as if they are about to lock-up) and reduce brake pressure to those wheels. On loose or uneven surfaces (gravel, ruts etc.) where all four wheels lose traction intermittently, the Anti-lock brake system may require a longer stopping distance than an equivalent car with a conventional braking system. The Anti-lock brake system cannot make up for extreme road conditions or driver misjudgement. It is still the driver's responsibility to drive at a suitable speed and provide a margin of safety for the road, weather and traffic conditions at hand. CAUTION: Be careful not to damage the wiring or the speed sensors at the back of each wheel when removing mud or snow from the wheel housings. NOTE: You may hear a sound like a small motor running, coming from the engine while driving or after the Anti-lock brake system is applied. This indicates the Anti-lock brake system pump is in service and the system is working properly.