C0237 Ford

Ford C0237 OBD-II Trouble Code Definition:

C0237 BUICK Erratic Rear Speed Signal

C0237 Ford OBD-II Trouble CodeDescription:

– Faulty Rear Speed Sensor
– Rear Speed Sensor harness is open or shorted
– Rear Speed Sensor circuit poor electrical connection
– Faulty EBCM
– ABS Warning Light ON
C0237 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.