C1423 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1423 – Master Cylinder Pressure Sensor Zero Point Low Malfunction

 

C1423 Possible Symptoms

 

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

 

C1423 Possible Causes

 

Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor),Brake Actuator Assembly harness is open or shorted,Brake Actuator Assembly circuit poor electrical connection

 

C1423 Description

 

The Master Cylinder Pressure Sensor is connected to the Skid Control ECU in the brake actuator assembly. The Skid Control ECU monitors the Master Cylinder Pressure Sensor. The Skid Control ECU sets the OBDII code when the Master Cylinder Pressure Sensor is not to factory specifications.