Possible causes
– Faulty Left Front Speed Sensor
– Left Front Speed Sensor harness is open or shorted
– Left Front Speed Sensor circuit poor electrical connection
– Faulty EBCM
– Left Front Speed Sensor harness is open or shorted
– Left Front Speed Sensor circuit poor electrical connection
– Faulty EBCM
Symptoms
– ABS Warning Light ON
C0226 BUICK OBD Code Description
As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake Control Module (EBCM) uses the frequency of the AC signal to calculate the wheel speed.