Hyundai Elantra: Indicators And Gauges / Troubleshooting

Hyundai Elantra AD (2016-2020) 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

Instrument Cluster Repair procedures

Removal • Put on gloves to protect your hands. • When prying with a flat-tip screwdriver, wrap it with protective tape, and apply protective tape around the re ...

Power Door Locks

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Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: How to deactivate the Smart Trunk function using the smart key
1. Door lock 2. Door unlock 3. Trunk open 4. Panic If you press any button of the smart key during the Detect and Alert stage, the Smart Trunk function will be deactivated. Make sure to be aware of how to deactivate the Smart Trunk function for emergency situations. Information If you ...

Hyundai Elantra AD (2016-2020) Owners Manual: Limitations of the System
The Smart Cruise Control system may have limits to its ability to detect distance to the vehicle ahead due to road and traffic conditions. On curves The Smart Cruise Control system may not detect a moving vehicle in your lane, and then your vehicle could accelerate to the set speed. Also ...