Hyundai Tucson: Smart Key System
Component Location (1)

- Integrated body control unit (IBU)
- Interior antenna 2
- Door outside handle
- Interior antenna 1
- Front antenna
- Buzzer
- Door antenna
Component Location (2)


- Tailgate antenna
- Rear bumper antenna
- Tailgate open switch
Specifications
Smart Key Unit (IBU)

Smart Key (FOB Key)

Antenna


- Smart Key System - Inspection
- Smart Key Code Saving
- Interior Antenna
- Exterior Bumper Antenna
- Door Outside Handle
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Smart Key System - Inspection
Self Diagnosis With Scan Tool
It will be able to diagnose defects of SMART KEY system with diagnostic tool
quickly, diagnostic tool can operates actuator
forcefully, input/output value monitoring and self diagnosis.
The following three feature
Smart Key Code Saving
Smart
Connect the DLC cable of diagnostic tool to the data link connector (16
pins) in driver side crash pad lower panel, turn the
power on diagnostic tool.
Select the 'S/W Management' and 'Car model'.
Select the
Interior Antenna
Interior 1 Antenna
Take care not to scratch the crash pad and related parts.
Disconnect the negative (-) battery terminal.
Remove the ecall unit.
(Refer to Emergency Call system - "Emergency Call (eCall) Unit")
Remove the inter
SEE MORE:
Coupling Assembly- Installation
To install, reverse the removal procedures.
WARNING
Smear the splines (A) with molybdenum type high pressure grease.
When install the coupling, be careful not to damage the oil
seal (B).
After replacing the coupling, reset the 4
Rear wheel speed sensor - Inspection
Inspection
Measure the output voltage between the terminal of the wheel speed
sensor and the body ground.
WARNING
In order to protect the wheel speed sensor, when measuring output
voltage, a 100Q resister must be used as shown.
C
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual