ESP_a023 — WSS Several Suspected
Full alert identifier: ESP_a023_WSSSeveralSuspected
Message shown in the car
ABS (anti-lock braking system) disabled Drive with caution
Alert description
Wheel Speed Sensor: General Fault.
Potential impact
Will disable VDC/TC and degrade ABS
Set condition
More than one suspected wheel speed sensor failures occur at the same time for more than 500ms. A suspected wheel speed sensor failure is set in the following situation: Noise monitoring- slip monitoring- dynamic monitoring- monitoring of absent signal or monitoring of flat tire sets a suspicious flag.
Clear condition
Check connection integrity and power cycle, replace WSS if necessary.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of ESP_a023.