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 Owner's Manual: Manual Heating and Air
Conditioning
1. Start the engine.
2. Set the mode to the desired position.
For improving the effectiveness of
heating and cooling, select:
- Heating:
- Cooling:
3. Set the temperature control to the
desired position.
4. Set the air intake control to the
outside (fresh) air position.
5. Set the fan ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: CVVT (Continuously Variable Valve Timing) System
- Description
Continuous Variable Valve Timing (CVVT) system advances or retards the
valve timing of the intake and exhaust valve in accordance with the ECM
control signal which is calculated by the engine speed and load.By
controlling CVVT, the valve over-lap or under-lap occurs, which mak ...