General Information

Active Hydraulic Booster
C2402 Motor Electrical - General Information

Component Location





General Description

The AHB ECU(Electronic Control Unit) supplies battery power to the electric motor by way of a motor relay which is controlled by the Electronic Control Unit(ECU).
The electric motor pump supplies hydraulic pressure to all wheel brake calipers by operating the piston inside the pump.

DTC Description

The AHB ECU monitors the pump motor relay. If the ECU detects an open or short in the motor circuit, it then sets this code.

DTC Detecting Condition





Diagnostic Circuit Diagram