General Information

Active Hydraulic Booster
C1604 ECU Hardware Error - General Information

Component Location





General Description

These inputs are used to make decisions regarding HCU component operation.
AHB unit consists of ECU(Electronic Control Unit ), HPU(Hydraulic Power Unit), BAU(Brake Actuation Unit).
HPU consists of pump motor, solenoid valves, high pressure accumulator, pressure sensors.
The function of the HPU is to increase, decrease or maintain the hydraulic pressure supplied to a booster and pedal simulator.
AHB ECU monitors various sensor signals and determines specified datas related to HPU operating.

DTC Description

The AHB ECU monitors the operation of the IC components such as memory, register, A/D converter and so on.
The ECU sets this code when the EEPROM data read by the master processor is different than prior data , or when the processor detects abnormal operation in RAM, Status Register, Interrupt, Timer, A/D converter or cycle time.

DTC Detecting Condition