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 Service Manual: External Amplifier
- Components
Connector Pin Information
NoConnector AConnector B
1Battery (+)Front right door tweeter speaker (+)
2Battery (+)Front left door tweeter speaker (+)
3Battery (+)Sub woofer speaker (+)
4Battery (+)-
5--
6--
7-Navigation voice (+)
8ACC-
9--
10M- CAN (High)-
11M- CAN (Low) ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Drive Mode Integrated Control System
Type A
Type B
The drive mode can be selected
according to the driver’s preference or
road condition.
The system resets to NORMAL mode,
when the engine is restarted.
Information
If there is a problem with the instrument
cluster, the drive mode is in NORMAL
mode and may not change ...