1.Disconnect the negative (-) battery terminal.
2.Remove the heater control unit.(Refer to Heating,Ventilation And Air Conditioning - "Heater Control Unit")
3.Loosen the mounting bolt,nut,screw and remove the Integrated Body Control Unit (A).

4.Disconnect the connectors and remove the Integrated Body Control Unit (A).

1.Install the Integrated Body Control Unit.
2.Install the heater control unit.
3.Connect the negative (-) terminal
Repair procedures
Antenna CoilHyundai Tucson (NX4) 2022-2026 Service Manual: Troubleshooting
- Failure Inspection
Diagnosis with diagnostic tool
1.In the body electrical system, failure can be quickly diagnosed by
using the vehicle diagnostic system (diagnostic tool).The diagnostic
system (diagnostic tool) provides the following information.(1)Fault Code Searching : Checking failure ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: View Modes
The information provided may differ depending on which functions are
available on
your vehicle.
Trip computer mode
The trip computer mode displays
information related to the vehicle driving
parameters including fuel economy,
tripmeter information, and vehicle
speed.
For more informa ...