C1474 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1474 – High Pressure Accumulator Sensor Calibration Data Failure

 

C1474 Possible Symptoms

 

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

 

C1474 Possible Causes

 

Faulty High Pressure Accumulator (HPA) Sensor,High Pressure Accumulator (HPA) Sensor harness is open or shorted,High Pressure Accumulator (HPA) Sensor circuit poor electrical connection,Faulty Hydraulic Control Unit (HCU)

 

C1474 Description

 

The Hydraulic Control Unit (HCU) monitors the High Pressure Accumulator (HPA) Sensor. The HCU sets the OBDII code when the High Pressure Accumulator (HPA) Sensor is not to factory specifications.