C0288 GMC – EBCM Detects Sensor Supply Voltage Fluctuating

C0288 GMC Possible Symptoms

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

C0288 GMC Possible Causes

Faulty Master Cylinder Pressure Sensor,Faulty Yaw Rate Sensor/Lateral Accelerometer

C0288 GMC Description

The Electronic Brake Control Module (EBCM) supplies a reference voltage of 5 volts to the yaw rate sensor/lateral accelerometer and the master cylinder pressure sensor. The sensor supply voltage is monitored via an internal feedback circuit to the EBCM microprocessor.