1.Remove the reservoir tank.
(1)Disconnect the water hose (A).
(2)Disconnect the degassing hose (B).
(3)Remove the reservoir tank (C).
Tightening torque :7.8 - 11.7 N.m (0.8 - 1.2 kgf.m, 5.7 - 8.6 Ib-ft)

2.Install in the reverse order of removal.
Cooling Fan
Integrated Thermal Management Module (ITM)Hyundai Tucson (NX4) 2022-2026 Service Manual: General Service Information. General Information
General Information
- General Service Information
Protection of the VehicleAlways be sure to cover fenders, seats, and floor areas prior to beginning work.
• The support rod must be inserted into the hole near the edge of
the hood whenever you inspect the engine compartmen ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Heater Control Unit
- Components Location
1. Heater control unit
- Component
[Connector Pin Function]
Pin NoConnector AConnector B
1Driver's mode control actuator feedbackSensor ground
2Intake actuator feedbackECV (-)
3Passenger's temperature control actuator feedbackECV (+)
4Driver's temperature co ...