Hyundai Ioniq: Body Electrical System / Indicators And Gauges

ICM (Integrated Circuit Module) Relay Box. Repair procedures

InspectionOut Side Mirror Folding RelayCheck for continuity between the terminals.1.There should be continuity between the No.17 and No.16 terminals when power and ground are connected to the No...

Troubleshooting

Troubleshooting Error Item Failure symptom Inspection items Detailed inspections Relevant Parts/ Components Screen displayTFT-LCD screen does not turn on1)Connector attachments2)Components1)Check the connector attachments2)Check B+, IGN and GND wiring3)Check the components Connectors, wiring, fuses, dashboardWarning lightAirbag warning lamp malfunction1)Connector attachments2)C-CAN3)Components1)Check airbag + signal (connectors)2)Check C-CAN (ACU4) signal3)Check the FPC attachment inside the dashboardACU Connectors, wiring, fuses, dashboardMode conversionIntegrated driving mode malfunction1)Connector attachments2)Switch3)Components1)Check the switch input (connector)2)Check the switch signal input(disconnection or shorting)3)Check conversion with dashboard componentSwitch connector, wiring dashboardIlluminationInterior light brightness cannot be controlled...

Other information:

Hyundai Ioniq (AE) 2017-2025 Service Manual: Schematic diagrams

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Hyundai Ioniq (AE) 2017-2025 Owner's Manual: Hybrid battery SOC (State of Charge) gauge

This gauge indicates the remaining hybrid battery power. If the SOC is near the "L (Low)" level, the vehicle automatically operates the engine to charge the battery. However, if the Service Indicator () and Malfunction Indicator Lamp (MIL) () turn on when the SOC gauge is near the "L (Low)" level, have the vehicle be checked by an authorized HYUNDAI dealer...