1.Disconnect the negative (-) battery terminal.
2.Remove the heater control unit.(Refer to Heating, Ventilation And Air Conditioning - "Heater Control Unit")
3.Remove the IBU (A) after loosening mounting bolt, nut and screw.

4.Disconnect IBU connectors and then remove the IBU (A).

1.Install in the reverse order of removal.
• When replacing the intergated body control unit, perform the procedure below using a diagnostic device.(Refer to Integrated Body Control Unit (IBU) - "Variant Coding")(Refer to Smart Key System- "Smart Key Code Saving")(Refer to Suspension System - "Register Sensor")
1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system.
(1)Fault Code Searching : Checking failure and code number (DTC)
(2)Data Analysis : Checking the system input/output data state
(3)Actuation test : Checking the system operation condition
(4)S/W Management : Controlling other features including system option setting and zero point adjustment
2.If diagnose the vehicle by diagnostic tool, select "DTC Analysis" and "Vehicle".

3.If check current status, select the "Data Analysis" and "Car model".

4.Select the 'IBU_BCM' to search the current state of the input/output data.


– If the integrated body control unit is replaced with a new one, variant coding is performed.
– If a warning light is on or a DTC is displayed, perform the variant coding.
• Integrated body control unit (IBU) variant coding makes it possible to operate functions for each vehicle type.
• If the variant coding differs from the vehicle specification, a DTC is displayed.
1.If the integrated body control unit (IBU) is replaced with a new one, perform the "Variant Coding" procedure using diagnostic tool.
(1)Connect the diagnostic device to the data link connector, turn on the ignition (IGN ON), and then activate the diagnostic tool.
(2)Select the'Car model' and "Integrated Body Control Unit-BCM".
(3)Select the 'Variant Coding' and follow the instructions on the screen.

Schematic DiagramsHyundai Tucson (NX4) 2022-2026 Service Manual: Components and Components Location
- Components
1. Front oil seal2. E-CVVT cover plug 3. E-CVVT cover4. Variable Force Solenoid Valve (VFS)5. Timing chain cover 6. E-CVVT plug7. Timing chain cam to cam guide8. Timing chain9. Timing chain tensioner arm10. Timing chain guide11. Timing chain tensioner12. Balance shaft chain sprock ...
Hyundai Tucson (NX4) 2022-2026 Owner's Manual: Tires and Wheels
WARNING
Tire failure may cause loss of vehicle
control and result in a collision. To
reduce risk of serious injury or death:
Inspect your tires monthly for
proper inflation as well as wear
and damage.
The recommended cold tire
pressure for your vehicle can be
found in this man ...