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) 2022-2026 Owner's Manual: Highway Driving Assist
Malfunction and Limitations
Highway Driving Assist malfunction
When Highway Driving Assist is not
working properly, the "Check Highway
Driving Assist (HDA) system" warning
message may appear, and the
warning light may illuminate on the
instrument cluster. Have the vehicle
inspected by an authorized HYUNDAI
dea ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Power Liftgate Unit
- Components
- Circuit Diagram
- Removal
1)After replacing with a new power liftgate module, check for DTC
code at all times.If DTC code B24B0 exists, perform power liftgate mode
change.(Refer to Power Liftgate Module - "Troubleshooting")
2)After replac ...