
1. Intake actuator
1.Turn the ignition switch OFF.
2.Disconnect the intake actuator connector.
3.Verify that the intake actuator operates to the fresh air position when connecting 12V to terminal 3 and grounding terminal 4.Verify that the intake actuator operates to the recirculated air position when connected in reverse.

1. -
2. -
3. Recirculated air
4. Fresh air
5. Sensor ground
6. Feedback signal
7. Sensor (+ 5V)
4.Connect the intake actuator connector.
5.Turn the ignition switch ON.
6.Check the voltage between terminal 5 and 6.
| Door position | Voltage (V) | Error detecting |
| Fresh air | 0.5 ± 0.15 | Low voltage : 0.1V or less High voltage : 4.9V or more |
| Recirculated air | 4.5 ± 0.15 |
7.If the intake actuator does not operate well, substitute with a known-good intake actuator and check for proper operation.
8.Replace the intake actuator if it is proved that there is a problem with it.
1.Disconnect the negative (-) battery terminal.
2.Remove the main crash pad assembly.(Refer to Body (Interior and Exterior) - "Main Crash Pad Assembly")
3.Disconnect the intake actuator connector (A) and loosen the mounting screws and remove the intake actuator (B).

4.Install in the reverse order of removal.
Climate Control Air Filtar
ControllerHyundai Tucson (NX4) 2022-2025 Service Manual: Canister
- Removal
• Be careful not to damage the parts located under the vehicle
(floor under cover, canister, fuel tank) when raising the vehicle using
the lift.(Refer to General Information - "Lift and Support Points")
1.Turn the ignition switch OFF and disconnect the batter ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Troubleshooting
- Failure Inspection
Diagnosis with diagnostic tool
1.In the body electrical system, failure can be quickly diagnosed by
using the vehicle diagnostic system (diagnostic tool).The diagnostic
system (diagnostic tool) provides the following information.(1)Fault Code Searching : Checking failure ...