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Hyundai Tucson: Smart Key System - Inspection

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Body Electrical System / Smart Key System / 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 features will be major problem in SMART KEY system.

  1. Problem in SMART KEY unit input.
  2. Problem in SMART KEY unit.
  3. Problem in SMART KEY unit output.

    So the following three diagnosis operates will be the major problem solution process.

  4. SMART KEY unit Input problem : switch diagnosis
  5. SMART KEY unit problem : communication diagnosis
  6. SMART KEY unit Output problem : antenna and switch output diagnosis

Switch Diagnosis

  1. In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (diagnostic tool).

    The diagnostic systemf diagnostic tool) provides the following information.

(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

  1. If diagnose the vehicle by diagnostic tool, select "DTC Analysis" and "Vehicle".

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

  1. Select the SMK' to be checked in order to check the vehicle with the tester.

  1. You can see the situation of each switch on scanner after connecting the "current data" process.

Fault Code Searching

Fault Code Searching

  1. Fault code searching that the each linked components operates normal.
  2. Connect the cable of diagnostic tool to the data link connector in driver side crash pad lower panel.
  3. Select the Fault Code Searching' and 'Car model'.

Antenna Actuation Diagnosis

Antenna Actuation Diagnosis

  1. Connect the cable of diagnostic tool to the data link connector in driver side crash pad lower panel.
  2. Select the 'Actuation Test' and 'Car model'.

  1. Set the smart key near the related antenna and operate it with a diagnostic tool.

  1. Set the smart key near the related antenna and operate it with a diagnostic tool.
  2. If the LED of smart key is blinking, the smart key is normal.
  3. If the LED of smart key is not blinking, check the voltage of smart key battery.
  4. Antenna actuation
  • Interior Antenna 1
  • Interior Antenna 2
  • Bumper Antenna
  • Driver Door Antenna
  • Assist Door Antenna

Antenna Status Check

  1. Connect the cable of diagnostic tool to the data link connector in driver side crash pad lower panel.
  2. Select the 'S/W Management' and 'Car model'.

  1. Select the 'Smart Key Unit' and 'Antenna Stams Check'.

  1. Set the smart key near the related antenna and operate it with a diagnostic tool.

  1. If the smart key runs normal, the related antenna, smart key(transmission, reception) and exterior receiver are normal.
  2. Antenna status
  • Interior Antenna 1
  • Interior Antenna 2
  • Bumper Antenna
  • Driver Door Antenna
  • Assist Door Antenna

FOB Status Check

  1. Connect the cable of diagnostic tool to the data link connector in driver side crash pad lower panel.
  2. Select the 'S/W Management' and 'Car model'.

  1. Select the 'Smart Key Unit' and 'FOB KEY STATUS IMFORMATION'.

Smart Key Status Check

Smart Key Status Check

  1. Connect the cable of diagnostic tool to the data link connector in driver side crash pad lower panel.
  2. Select the 'S/W Management' and 'Car model'.

  1. Select the 'Smart Key Unit' and 'SMK STATUS INFORMATION'.

Neutralization Stams Check

Neutralization Stams Check

  1. Connect the cable of diagnostic tool to the data link connector in driver side crash pad lower panel.
  2. Select the 'S/W Management' and 'Car model'.

  1. Select the 'Smart Key Unit' and 'Neutralization Mode'.

Smart Key Code Saving

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     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

     Exterior Bumper Antenna

    Disconnect the negative (-) battery terminal. Lift the vehicle. Disconnect the antenna connector (A) from the rear bumper. Remove the antenna (B) after loosening mounting nuts. Buzzer Disconnect the negative (-) battery terminal.

    SEE MORE:

     CCWD Actuator- Installation

    WARNING When installing the CVVD actuator the shaft gear do not fit properly, rotate the C W D actuator in both directions and installing it uaturally. (Do not impact when installating the component.) Do not damage to the component whe

     When not using the CVVD fixture

    (3) Remove the CVVD assembly. Remove the Intake CVVT (A). Installation Install the Intake CVVT (A). Install the CVVD assembly (A). WARNING After installing the CVVD, check whether the swing arm is separated

    Information