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) 2022-2025 Owner's Manual: Engine Compartment
Smartstream G2.5 GDI
1 Engine coolant reservoir
2 Brake fluid reservoir
3 Air cleaner
4 Engine oil dipstick
5 Engine oil filler cap
6 Windshield washer fluid reservoir
7 Fuse box
8 Battery ...
Hyundai Tucson (NX4) 2022-2025 Owner's Manual: Windshield Wipers
Operates as follows when the ignition
switch is turned ON.
MIST: For a single wiping cycle,
move the lever up (MIST) and
release it. The wipers operate
continuously if the lever is
held in this position.
OFF: Wipers are not in operation.
INT: Wipers operate intermittently
at the same ...