1.There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86 terminals.
2.There should be no continuity between the No.30 and No.87 terminals when power is disconnected.



1.Disconnect the negative (-) battery terminal.
2.Push 4 hooks in the engine room relay box out to the arrow direction and put up the PCB block (A).

3.Disconnect the connector and remove the the PCB block (A).
1.Be sure there is no play in the fuse holders, and that the fuses are held securely.
2.Are the fuse capacities for each circuit correct?
3.Are there any blown fuses?
• If a fuse is to be replaced, be sure to use a new fuse of the same capacity. Always determine why the fuse blew first and completely eliminate the problem before installing a new fuse.

• Multi fuse (A) is needed to replace in the mass when it damaged only one fuse.
• Use the multi fuse capacities for each circuit correctly.
Components and Components Location
Relay Box (Passenger Compartment)Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Air intake control
To select outside (fresh) air or
recirculated air, press this button.
Recirculated air position
With the recirculated air
selected, air from the
passenger compartment is
drawn through the climate
control system.
Outside (fresh) air position
With the outside (fresh)
air selected, ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Rear Transverse Trim
- Component Location
1. Rear transverse trim
- Replacement
• When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.
• Put on gloves to prevent hand injuries.
• Take ...