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: Seat Heater Switch
- Components
1. Front seat heater switch2. Rear seat heater switch
- Circuit Diagram
Connector Pin Information
PinDescriptionPinDescription
1IGN 117PDW switch
2ILL (+)18PDW IND
34WD lock swtich19-
4Grip control swtich (+)20Heater LH
5Grip control swtich (-)21Heater IND High_LH
...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Door Step Trim
- Component Location
1. Front door step trim2. Rear door step trim
- Replacement
• When prying with a flat-tip screwdriver, wrap it with protective
tape, and apply protective tape around the related parts, to prevent
damage.
• Put on gloves to protect you ...