C12B4 CHEVROLET – ABS Master Cylinder Pressure Sensor Performance

C12B4 CHEVROLET Possible Symptoms

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

C12B4 CHEVROLET Possible Causes

Faulty Brake Pressure Modulator,Brake Pressure Modulator harness is open or shorted,Brake Pressure Modulator circuit poor electrical connection

C12B4 CHEVROLET Description

The Electronic Brake Control Module (EBCM) uses input from the master cylinder pressure sensor for more accurate control during a vehicle stability enhancement system event. The master cylinder pressure sensor is internal to the brake pressure modulator.