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Home >> Kia >> 2016 >> Optima Hybrid EX >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Active Hydraulic Boost (AHB) System (HEV) >> Active Hydraulic Boost (AHB) System >> Description And Operation >> AHB System Operation Principals >> 1. Initial Status

1. Initial Status

Fig 1: AHB System - Initial Status
G11816747Courtesy of KIA MOTORS AMERICA, INC.

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 to TF HEV.