Wheel Speed Sensor, Detection of Inadmissable High Frequencies (RA left)
- Check sensor wiring at relevant wheel and its connectors for intermittent contact - Check whether brake squeezes or whether sensor fixing is oscillating - Replace the ABS ECU if the fault still occurrs without other causes mentioned above
What you'll see
No driver-visible symptom recorded.
System reaction
ABS function at relevant wheel is switched off ABS function at other wheels is still available ATC engine and brake control is switched off HSA is deactivated EBL is not deactivated Drag Torque Control is deactivated
Diagnostic depth
An inadmissable high wheel speed frequency on the left side of the rear axle was detected.
- intermittent contact at relevant sensor wiring or connectors - brake squeezes or sensor fixing is oscillating - ABS ECU defective