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Home >> Kia >> 2015 >> Optima Hybrid >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Active Hydraulic Boost (AHB) System - Optima HEV >> Description and Operation >> Description >> AHB System Operation Principals >> Initial Status

Initial Status

Fig 1: AHB System Operation Diagram - Initial Status
G00548725Courtesy 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.

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