1.Turn ignition switch OFF and disconnect the battery negative (-) terminal.
2.Remove the fuse box cover.
3.Remove the starter relay (A).

4.Check for continuity between the terminals (30 and 87) using an ohmmeter.
| Terminal | Resistance | Measure | ||
| 30 - 87 | 1 MΩ or higher | If there is continuity between the terminals, replace the relay. | ||

5.Apply 12V to the terminal 85 and ground to the terminal 86 and then check for continuity between the terminals (30 and 87).
| Terminal | Resistance | Measure | ||
| 30 - 87 | 1Ω or less | If there is no continuity between the terminals, replace the relay. | ||

6.Install the starter relay.
7. Install the fuse box cover.
Starter
Ignition SystemHyundai Tucson (NX4) 2022-2026 Service Manual: Side Sill Molding
- Replacement
• When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components.
• Put on gloves to prevent hand injuries.
1.Loosen the mounting screws, remove the side seal molding (A).
2.To install, rev ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Troubleshooting
- Troubleshooting
Problem Symptoms Table
Before replacing or repairing air conditioning components, first
determine if the malfunction is due to the refrigerant charge, air flow
or compressor.Use the table below to help you find the cause of the
problem. The numbers indicate the priority ...