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: Lane Following Assist Operation
Turning Lane Following Assist On/
Off
With the ignition switch ON, press
the Lane Driving Assist button on the
steering wheel to turn on Lane Following
Assist. The white or green
indicator
light illuminates on the instrument
cluster.
Press the button again to turn off the
functio ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Front Door Inside Handle
- Replacement
1.Disconnect the negative ( - ) battery terminal.
2.Remove the front door trim.(Refer to Front Door - "Front Door Trim")
3.Loosen the mounting screws and remove the front door inside handle (A).
4.To install, reverse removal procedure.
• Make sure the doo ...