Wheel Speed Sensor Speed Drop-Out Upward (RA left)
- Check relevant wheel speed sensor and its fixing. In case the distance between pole-wheel and sensor (air gap) is too wide, push the wheel speed sensor back to the pole wheel to adjust the air gap - Check sensor wiring and connectors for intermittent contact.
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
- Temporary loss of wheel speed signal - An upward signaljump failure on the left side of the rear axle was detected.
- distance between pole-wheel and sensor (air gap) too wide - sensor wiring and connectors have intermittent contact