Ensures accurate wheel speed detection for ABS control Maintains stable braking on varied terrain Essential for preventing wheel lock under hard braking Supports optimal ABS response and vehicle safety A front ABS sensor is a critical safety component on the Land Rover Defender 1999–2005, as it continuously monitors the rotational speed of the wheels and sends precise data to the anti‑lock braking system. This information allows the ABS module to regulate brake pressure in real time, preventing wheel lock‑up and maintaining steering control during emergency stops or low‑traction conditions.