Hyundai Tucson: IBU Diagnosis With Diagnostic Tool
Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Body Electrical System / Integrated Body Control Unit (IBU) / IBU Diagnosis With Diagnostic Tool
- 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
- If diagnose the vehicle by diagnostic tool, select "DTC Analysis" and "Vehicle".

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

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


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IMS (Integrated Memory)
Description
The optimal seat position set by the driver is memorized into the power seat
unit by using IMS switch.
In case of the position change, the seat can restore its preset position by IMS
switch.
It has safety functions of restoring
Fuel Filler Door
Component Location
Fuel filler door release actuator
Inspection
Disconnect the negative (-) battery terminal.
Remove the fuel filler housing after opening the fuel filler door.
(Refer to Body - "Fuel Filler Door")
Dis
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Crash pad center panel
Component Location
Crash pad center panel
Replacement
WARNING
When piying with a flat-tip screwdriver, wrap it with
protective tape, and apply protective tape
around the related parts, to prevent damage.
Put on gloves to protec
BMS ECU Terminal and Input/Output Signal
Terminal Function
Connector B10-A
Connector B01-B
Removal
Turn ignition switch OFF and disconnect the battery (-) terminal.
Remove the 48V battery assembly.
(Refer to 48V Battery System - "Repair procedures")
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual
- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual