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Hyundai Equus: Troubleshooting - Indicators And Gauges - Body Electrical System - Hyundai Equus VI 2009-2022 Service ManualHyundai Equus: 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
2.
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
2.
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
2.
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 1. Disconnect the negative (-) battery terminal. 2. Remove the cluster fascia panel after loosening the screws. (Refer to Body - "Cluster Fascia Panel") 3. Remove the cluster asse ...

    Power Door Locks
    ...

    See also:

    If you have a flat tire while driving
    If a tire goes flat while you are driving: 1.Take your foot off the accelerator pedal and let the car slow down while driving straight ahead. Do not apply the brakes immediately or attempt to pull ...

    Sub Fuel Sender Repair procedures
    Removal 1. Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") 2. Folding the rear seat cushion. 3. Remove the fuel pump ...

    Compass Mirror Repair procedures
    Adjustment Calibration procedure If the display read "C", calibrate the compass. 1. Driving the vehicle in a circle at less than 8km/h 3 times or until the compass heading appears. 2. Drivin ...

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