Hyundai Ioniq: Indicators And Gauges / Troubleshooting

Hyundai Ioniq (AE) 2017-2024 Service Manual / Body Electrical System / Indicators And Gauges / Troubleshooting

Troubleshooting

Error Item

Failure symptom

Inspection items

Detailed inspections

Relevant Parts/
Components

Screen display

TFT-LCD screen does not turn on

1)	Connector attachments

2)	Components

1)	Check the connector attachments

2)	Check B+, IGN and GND wiring

3)	Check the components

Connectors, wiring, fuses, dashboard

Warning light

Airbag warning lamp malfunction

1)	Connector attachments

C-CAN

3)	Components

1)	Check airbag + signal (connectors)

2)	Check C-CAN (ACU4) signal

3)	Check the FPC attachment inside the dashboard

ACU Connectors, wiring, fuses, dashboard

Mode conversion

Integrated driving mode malfunction

1)	Connector attachments

Switch

3)	Components

1)	Check the switch input (connector)

2)	Check the switch signal input (disconnection or shorting)

3)	Check conversion with dashboard component

Switch connector, wiring dashboard

Illumination

Interior light brightness cannot be controlled.

1)	Connector attachments

Switch

3)	Components

1)	Check if the light switch's input signal reaches the connector

2)	Check ILL- and DETENT signals

3)	Check the TAIL+ signal input

Switch connector, wiring dashboard

Warning Sound

No dashboard alarm

1)	Connector attachments

2)	Car speakers

3)	Components

1)	Check the speaker output connector

2)	Check the car speakers

Speaker connectors, wiring dashboard

Fuel indicator

Faulty fuel gauge indication

1)	Connector attachments

2)	Fuel sender

3)	Components

1)	Check fuel input and GND connectors (open, short or input resistance values)

2)	Check fuel sender

Fuel sender connector, wiring dashboard

Indicators And Gauges

Instrument Cluster. Components and components location

C..

Other information:

Hyundai Ioniq (AE) 2017-2024 Owner's Manual: FCA Sensor

In order for the FCA system to operate properly, always make sure the radar sensor cover is clean and free of dirt, snow, and debris. Dirt, snow, or foreign substances on the lens may adversely affect the sensing performance of the sensor. NOTICE Do not apply license plate frame or foreign objects such as a bumper sticker or a bumper guard near the radar sensor...

Hyundai Ioniq (AE) 2017-2024 Service Manual: Repair procedures

Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A)...