Hyundai Sonata: Indicators And Gauges / Troubleshooting

Hyundai Sonata LF 2014-2019 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 Sonata LF 2014-2019 Owners Manual: Side view mirrors control
Adjusting the rearview mirrors: 1. Move the lever (1) towards the L(Left) or R(Right) to select the rearview mirror you would like to adjust. 2. Use the mirror adjustment control switch to position the selected mirror up, down, left or right. 3. After adjustment, place the lever (1) in the center ...

Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
Description The charging system included a battery, an alternator with a built-in regulator, and the charging indicator light and wire. The Alternator has eight built-in diodes, each rectifying AC current to DC current. Therefore, DC current appears at alternator "B" terminal. In addition, the ...