Wheel Sensor 3rd Axle Left
- Check pole-wheel at intermediate axle left wheel for damages. - Check sensor wiring and connectors for intermittent contact. - Check fixing and mounting of the intermediate axle left wheel speed sensor (Can vibrations cause chattering?) - Check foundation brake for inadmissible vibrations at intermediate axle left wheel (return spring defect?) - Read out amplitudes of sensor signals and compare with required values. Remark: A repair can be considered successful only when the vehicle is driven again in order to detect possible dynamic failure.
What you'll see
No driver-visible symptom recorded.
System reaction
ABS wheel disabled ASR, ESC/RSC disabled DTC disabled if driven wheel Hillhold Function disabled
Diagnostic depth
failure mode not identifiable / root cause not known
Wheel Speed Sensor Abnormal Speed Detection (AA left)