Hyundai Tucson Owners & Service Manuals

Hyundai Tucson: Immobilizer System / Immobilizer Control Unit

- Removal

1.Disconnect the negative (-) battery terminal.

2.Remove the heater control unit.(Refer to Heating,Ventilation And Air Conditioning - "Heater Control Unit")

3.Loosen the mounting bolt,nut,screw and remove the Integrated Body Control Unit (A).

4.Disconnect the connectors and remove the Integrated Body Control Unit (A).

- Installation

1.Install the Integrated Body Control Unit.

2.Install the heater control unit.

3.Connect the negative (-) terminal

    Repair procedures
    - Adjustment 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 foll ...

    Antenna Coil
    - Removal 1.Disconnect the negative (-) battery terminal. 2.Remove the crash pad lower panel.(Refer to Body - "Crash Pad Lower Panel") 3.Disconnect the 6P connector (B) of the coil antenna and ...

    Other information:

    Hyundai Tucson (NX4) 2022-2025 Service Manual: General Safety Information and Caution
    - Instructions (R-134a) When Handling Refrigerant 1.R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. 2.It is standard practice to wear goggles or glasses to protect your ...

    Hyundai Tucson (NX4) 2022-2025 Service Manual: Troubleshooting
    - Failure Diagnosis 1.In principle, ESC and TCS controls are prohibited in case of ABS failure. 2.When ESC or TCS fails, only the failed system control is prohibited. 3.However, when the solenoid valve relay should be turned off in case of ESC failure, refer to the ABS fail-safe. 4.Informat ...

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