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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Troubleshooting
Trouble symptom/ Suspected area/ Remedy
Abnormal noise
Oil level (Low)
Add oil after inspecting the
parts, (oil seal, drain plug, filler
plug)
Oil (Wrong or contaminated)
Replace the oil.
Transaxle and engine mounting
When Ignition Key Is Turned ON (engine OFF), The ABS Warning Lamp Does Not
Light Up.
Detecting condition
When current flows in the HECU the ABS warning lamp turns from ON
to OFF as the initial check. Therefore if the lamp does not light up. the
cause may be an open in the lamp power supply circuit, a blown bulb, an
open in the bo
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual
- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual