BMW ABS & Traction Control (ASC, DSC, Etc.) Warning Lights – Speed Sensor Fault
This answer is applicable for many BMWs in addition to the one listed below.
I have ABS and traction control warning lights on. When the fault code is read, it says “wheel speed sensor signal, right front”. What should I do?
If the internal fault codes for the ABS system, are saying that the right-front speed sensor signal is at fault, most likely the sensor itself is faulty. There is the possibility that the wiring or the toothed gear wheels that the sensor reads could be at fault. However, the far more likely cure would be to replace the ABS speed sensor.