C0237 GMC Erratic Rear Speed Signal
Possible causes
– Faulty Rear Speed Sensor
– Rear Speed Sensor harness is open or shorted
– Rear Speed Sensor circuit poor electrical connection
– Faulty EBCM
– Rear Speed Sensor harness is open or shorted
– Rear Speed Sensor circuit poor electrical connection
– Faulty EBCM
Symptoms
– ABS Warning Light ON
C0237 GMC 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.
GMC Vehicle:GMC Acadia,GMC Canyon,GMC Envoy,GMC Savana 1500,GMC Savana 2500,GMC Savana 3500,GMC Sierra 1500,GMC Sierra 2500 HD,GMC Sierra 3500 HD,GMC Terrain,GMC Yukon,GMC Yukon XL 1500,GMC Yukon XL 2500,