What does a BMW ABS fault indicate?

[CalebAnn]

The reasons for the BMW ABS light coming on include the ABS speed sensor sensing part being covered, poor ABS signal, etc. ABS speed sensor sensing part being covered: When the ABS speed sensor sensing part is covered by mud, sludge, or other contaminants, it affects the sensor's ability to detect the corresponding speed signal. This prevents the ABS computer from determining the vehicle speed and the wheel slip rate, thus failing to issue appropriate commands to regulate braking. Solution: Clean the dirt from the speed sensor and adjust the gap between the speed sensor and the signal ring to restore normal function. Poor ABS signal: Poor signal due to loose connections between system lines or poor contact of the ABS relay can cause system failure. The most common issue is a loose speed sensor wire connection, which will also show as a poor speed sensor signal in the ABS computer's fault memory. Solution: Check the line connections and reconnect any loose parts.