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 Service Manual: Crash Pad Center Panel
- Component Location
1. Crash pad center panel
- 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 your hands.
& ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: UD Clutch Control Solenoid Valve (UD/C_VFS)
- Description
• UD Clutch control solenoid valve is a Variable Force Solenoid (VFS) type.
• When TCM supplies variable current to solenoid valve, hydraulic
pressure of UD clutch is controlled directly by solenoid valve.
- Components Location
1. 28 Brake control solenoid valve ...