Nissan 47911-CA000 Sensor Assembly-Anti SKID,Front LH

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The Anti-lock Brake System (ABS) is designed to maintain vehicle steerability, directional stability, and optimum deceleration under severe braking conditions and on most road surfaces by monitoring the rotational speed of each wheel and controlling the brake line pressure to prevent wheel lock-up. The actuator assembly includes an electric hydraulic pump and solenoid valves for each wheel, providing hydraulic pressure to the braking system during ABS operation. Speed sensors at each wheel generate a sine wave current that is converted to a digital signal by the ABS Control Module, which processes information to control hydraulic line pressure and monitor for malfunctions. Upon starting the engine, the ABS warning light activates briefly, and a self-test occurs when the vehicle exceeds four mph; any detected issues will cause the light to remain on and store a diagnostic code. For wheel speed sensor removal, the wheel must be taken off after loosening the lug nuts, ensuring the ignition is off, and then the wiring is traced and disconnected before removing the sensor. Installation follows the reverse order, ensuring all components are securely fastened.