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: Smart Cruise Control (SCC) Switch
- Components
1. Remote control switch (LH : Audio)2. Remote control switch (RH : Trip + Cruise)
- Circuit Diagram
Trip+SCC+MSLA+LFA
- Inspection
1.Check for resistance between terminals in right switch position.
[Trip/Cruise]
SwitchConnector terminalResistance (± 3%)
CANCE ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Smart key antenna
- Removal
Interior 1 Antenna
• Take care not to scratch the crash pad and related parts.
1.Disconnect the negative (-) battery terminal.
2.Remove the crash pad center panel.(Refer to Body - "Crash Pad Center Panel")
3.Remove the interior 1 antenna (B) after loosening ...