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: Special Service Tools
- Special Service Tools
Tool (Number and name)IllustrationUse
Crankshaft front oil seal installer09214-L1100Handle09231-H1100
Installation of the crankshaft front oil seal
Valve stem seal installer09222-4A000
Installation of the valve steam seal
Valve spring compressor09222-3K000Valve spring c ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Fuel Filler Door
Components and Components Location
- Component Location
1. Fuel filler door release actuator
Fuel Filler Door Release Actuator
- Inspection
1.Disconnect the negative (-) battery terminal.
2.Remove the fuel filler housing after opening the fuel filler door.(Refer to Body - "Fuel Filler ...