How to Deal with BMW ABS System Malfunction?

[VanEmerson]

BMW ABS system malfunction solutions include removing dust and reconnecting the wheel speed sensor wiring. Cause 1: The sensing part of the ABS wheel speed sensor is covered by mud, sludge, or other contaminants, affecting the sensor's ability to detect the corresponding vehicle speed signal. This prevents the ABS computer from determining the vehicle speed and the wheel slip rate, thus failing to issue appropriate commands to adjust braking. Solution: Clean the dirt on the wheel speed sensor and adjust the gap between the sensor and the signal ring to restore normal function. Cause 2: Poor signal quality due to loose connections between system lines or poor contact of the ABS relay can cause system malfunctions. The most common issue is a loose connection of the wheel speed sensor wiring, which will also show as a poor wheel speed sensor signal in the ABS computer's fault memory. Solution: Check the wiring connections and reconnect any loose parts.