C1473 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1473 – Brake System Valves Calibration Data Failure

 

C1473 Possible Symptoms

 

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

 

C1473 Possible Causes

 

Brake System Bleeding,Faulty Brake Master Cylinder,Faulty Hydraulic Control Unit (HCU),Hydraulic Control Unit (HCU) harness is open or shorted,Hydraulic Control Unit (HCU) circuit poor electrical connection

 

C1473 Description

 

The Hydraulic Control Unit (HCU) monitors the Brake Master Cylinder. The HCU sets the OBDII code when the Brake Master Cylinder is not to factory specifications.