Hyundai Ioniq (AE): Smart Key System / Smart Key Unit. Schematic diagrams

Components (1) No Connector A Connector B Connector C 1Battery (+)_LOADIGN2 Relay outputImmobilizer antenna power input2Battery (+)_CPUIGN1 Relay outputWheel speed signal input3Antenna ground (Internal1)-SSB Switch1 signal input4---5Antenna ground (Internal2)B-CAN (Low)ESCL Unlock switch signal input6Antenna ground (Assist)EMS CANP Position switch signal input7Antenna ground (Trunk)B-CAN (High)Brake switch signal input8Antenna ground (Driver)B-CAN (Low)Ignition 2 signal input9-P-CAN (Low)Ignition 1 signal input10SSB Illumination power (Output)P-CAN (High)Starter relay output11External buzzer output-Immoblizer antenna ground12ESCL Power outputACC Relay outputRPM Signal input13--SSB Switch2 signal input14Antenna power (Internal1)Signal groundDriver toggle button switch signal input15--Assiste toggle button switch signal input16Antenna power (Internal2)SSB ACC LED OutputStarter relay feedback signal input17Antenna power (Assist)SSB IGN LED Output　Stop lamp fuse signal input18Antenna power (Trunk)-ACC Signal input19Antenna power (Driver)--20-SSB Illumination groundPower ground21ESCL Enable output-22ESCL Ground outputWireless charging module output

RemovalSmart Key Unit1.Disconnect the negative (-) battery terminal.2.Remove the glove box.(Refer to Body - "Glove Box Upper Cover Assembly")3.Remove the smart key unit (A) after disconnecting the connectors (B) and loosening the bolt and nut.