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Home >> Hyundai >> 2018 >> Ioniq Plug-In Hybrid >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Active Hydraulic Boost (AHB) System (PHEV) >> Description And Operation >> Description >> AHB System Operation Principals >> Initial Status

Initial Status

G12729460Courtesy of HYUNDAI MOTOR AMERICA

High pressure (180 bar) between the PSU and the IBAU is generated consistently. Therefore, before removing the PSU or the IBAU, high pressure between them should be reduced for safety by conducting "High pressure release mode" of GDS connected.