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: Description and Operation
- Description
The System offers the following features : • Changing the state of engine ignition and power by using the start button.
• Controlling external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.
• Indicating the vehicle ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Master warning light
This warning light illuminates:
If a malfunction is detected in any of the
following:
Forward Collision-Avoidance Assist
malfunction (if equipped)
Forward Collision-Avoidance Assist
radar blocked (if equipped)
Blind-Spot Collision-Avoidance Assist
malfunction (if equipped)
Bl ...