Alerts

Bad airgap, wheel vibrations or incorrectly mounted WSS.

Will disable VDC/TC and degrade ABS

At least one wheelspeed sensor is mounted in the wrong direction. This error will be set if case one: 1 rotation direction of the sensor signal is in one direction and the other 3 rotations are in the other direction OR case two: 1 rotation direction of the sensor signal has no rotation and 1 rotation in one direction and 2 rotations in other direction.

Will disable VDC/TC and degrade ABS

Large wheel speed diff relative to other sensors detected

Will disable VDC/TC and degrade ABS

WSS signal interferences or disturbances

Will disable VDC/TC and degrade ABS

A wheel speed sensor with wrong sensor type is mounted on wheel FR.

Will disable VDC/TC and degrade ABS

No stop pulses occurred on WSS

Will disable VDC/TC and degrade ABS

Wss fault due to missing wheel speed sensor signal

Will disable VDC/TC and degrade ABS

Signal from WSS is noisy/implausible

Will disable VDC/TC and degrade ABS

Range monitoring for WSS signal which monitors non-plausible high wheel velocity

Will disable VDC/TC and degrade ABS

WSS line failure (no exact failure reason detectable).

Will disable VDC/TC and degrade ABS

Short circuit of the wheel speed sensor line to + voltage.

Will disable VDC/TC and degrade ABS

Short circuit of the sensor line to GND or line interruption (sensor- or supply line) .

Will disable VDC/TC and degrade ABS

Backward power supply of ECU via WSS supply line is detected. One of the WSS power supply lines is shorted to Ubat.

Will disable VDC/TC and degrade ABS

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.

Will disable VDC/TC and degrade ABS

This error will be set if 2 rotation directions of the sensor signal are in one direction, the other 2 rotations are in the other direction OR 2 rotation directions of the sensor signal have no rotation, 1 rotation in one direction, 1 rotation in other direction

Will disable VDC/TC and degrade ABS

If the difference between maximum and minimum wheel speed related to a reference speed exceeds 5%. A generic wheel speed sensor fault is set if no wheel specific fault could be determined. During system mode ABS and backup-EBD (Electr. Brake Force Distribution) and below 20 kilometers per hour the deviation is 6 kilometers per hour for velocities < 100 kilometers per hour and 6% for a velocity > 100 kilometers per hour.

Will disable VDC/TC and degrade ABS

Three or more sensor signals seem to be affected by temporary failure suspicion at the same time (one or several of the above described failure monitoring are triggered by not plausible or missing WSS signals).

Will disable VDC/TC and degrade ABS. Leads to deactivation of BSC and EBD.

One wheel speed sensor is mounted backwards on the rear axle

Will disable VDC/TC and degrade ABS

Front wheel speed sensors are on opposite wheels on the front axle

Will disable VDC/TC and degrade ABS

ESP has detected PARTY or CHASSIS CAN network is under-voltage.

May disable VDC/TC and degrade ABS