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Hyundai Tucson: ESC Control unit (HECU) - Adjustment

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Brake System / ESC (Electronic Stability Control) System / ESC Control unit (HECU) - Adjustment

Adjustment

Perform diagnostic procedure by using diagnostic device as shown below :

  1. Connect self-diagnosis connector (16pins) located under the driver side crash pad to self-diagnosis device, and then torn the self-diagnosis device after key is ON.
  2. Select the "vehicle model" and "ABS/ESC" on diagnostic tool vehicle selection screen, then select OK.

Variant Code Reset

Variant Coding

Variant Coding

Longitudinal G Sensor Calibration

Longitudinal G Sensor Calibration

Assembly Check (ECU replacement)

Assembly Check (ECU replacement)

Description

Description

  1. The ESC OFF switch is for the user to turn off the ESC system.
  2. The ESC OFF lamp is on when ESC OFF switch is engaged.

Removal

  1. Disconnect the battery negative ( - ) terminal.
  2. Remove the crash pad lower panel.

    (Refer to Body - "Crash Pad Lower Panel")

  3. Remove the screws and remove the ESC OFF switch (A).

  1. Remove the ESC OFF switch connector (A) by pressing the locking pin.

Installation

Installation

  1. Install in the reverse order of removal

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