Precautions For Brake Control

During ABS operation, the brake pedal vibrates lightly and its mechanical noise may be heard. This is a normal condition.
Just after starting the vehicle after ignition switch ON, the brake pedal may vibrate or the motor operating noise may be heard from the engine compartment. This is a normal status of the operation check.
The stopping distance may be longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or snowy (fresh deep snow) road.
If a malfunction is indicated by the ABS warning lamp, or other warning lamps, collect the necessary information from the customer (what symptoms are present under what conditions) and find out the possible cause before starting the service. Besides the electrical system inspection, check the booster operation, brake fluid level, and oil leaks.
If the tire size and type are used in an improper combination, or the brake pads are not NISSAN genuine parts, the stopping distance or steering stability may deteriorate.
If there is a radio, antenna, or antenna lead-in wire (including wiring) near the control unit, the ABS function may have a malfunction or error.
If aftermarket parts (e.g. car stereo equipment, CD player) have been installed, check the electrical harnesses for pinches, open, and improper wiring.