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 | 0.3 ± 0.15 | Low voltage : 0.1V or less High voltage : 4.9V or more |
Recirculated air | 4.7 ± 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 connector (A) and loosen the mounting screws and remove the intake actuator (B).
4.Install in the reverse order of removal.
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Heater Control Unit
- Components Location
1. Heater control unit
- Terminal Function
Connector Pin Function
Pin NoConnector AConnector B
1Mode control actuator feedbackGround
2Intake actuator feedbackSensor ground
3Passenger's temperature control actuator feedbackECV (-)
4Driver's temperature contr ...
Hyundai Santa Cruz (NX4A OB) 2021-2025 Service Manual: Troubleshooting
- Engine Overheat Troubleshooting
Inspection Remedy
Visual inspectionInspect for shortage of coolant in reservoir tank.Reinspect after replenishing coolant.
Inspect for coolant pollution after removing reservoir tank cap.Reinspect after replacing coolant.
• Be careful w ...