Defect Codes 97-104

Defect Codes 97-104: Speed signal not plausible

- Loose contact in plug and socket connections.

- The pulse wheel has the wrong number of teeth.

- The clearance between sensor and pulse wheel is too great.

- The speed sensor is defective.

- It may be possible that there is no real defect if the defect code is stored for both wheels of one axle which was driven by towing or on the test stand. Speed Sensor Check