Hyundai Ioniq: AHB(Active Hydraulic Boost) System / Hydraulic Power Unit. Components and components location

Brake Actuation Unit. Repair procedures

Removal 1.Turn ignition switch OFF and disconnect the negative (-) battery cable.2.Disconnector TCM connector (A).3.Disconnector TCM connector (B).4.Loosen the bolt & nut (A) then remove the ECM, TCM with bracket (B)...

Hydraulic Power Unit. Repair procedures

Removal1.Turn ignition switch OFF and disconnect the negative (-) battery cable.2.Remove the wiring bracket.3.Remove the brake fluid from the reservoir with a syringe...

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Hyundai Ioniq (AE) 2017-2024 Service Manual: HCU (Hybrid Control Unit). Schematic diagrams

HCU Terminal and Input / Output SignalTerminal FunctionConnector [C133-S] Pin No Description Connected to 1HCU GroundChassis ground2HCU GroundChassis ground3HCU GroundChassis ground4Battery power (B+)Battery5Battery power (B+)Battery6Battery power (B+)Battery7-　8-　9-　10-　11-　12-　13-　14-　15Brake Switch 2 signal inputBrake Switch (NC, IG1)16Brake Switch 1 signal inputBrake Switch (NO, B+)17-　18-　19-　20-　21-　22-　23-　24-　25-　26-　27-　28-　29-　30-　31-32-33-34-　35-　36-　37-　38Start signal inputSmart Key Unit39-　40-　41-　42-　43-　44-　45-　46-　47-　48-　49-　50-　51-　52-　53-　54-　55-　56-　57-　58-　59-　60-　61-　62-　63-　64-　65-　66-　67-　68-　69-　70-　71-　72-　73IGN signal inputSmart Key Unit74-　75-　76-　77-　78Powertrain CAN [High] signal inputOther control modules79Powertrain CAN [Low] signal inputOther control modules80-　81Hybrid CAN [High] signal inputOther control modules82Hybrid CAN [Low] signal inputOther control modules83-　84-　85-　86-　87-　88-　89-　90-　91-　92-　93-　94-　Input/Output signalConnector [C133-S] Pin no Description Condition Type Level 1HCU GroundAlwaysDC VoltageMax...

Hyundai Ioniq (AE) 2017-2024 Service Manual: CVVT (Continuously Variable Valve Timing) System. Description and operation

DescriptionContinuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work...