TucsonDataManu

.com

Hyundai Tucson: ESC Control unit (HECU)

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

Components

  1. Front - right (FR)
  2. Rear - left (RL)
  3. Rear - right (RR)
  4. Front - left (FL)
  5. MC2
  6. MCI
  7. ESC Control unit (HECU) connector
  8. Bracket

ESC Control unit (HECU)- Removal

Removal

  1. Disconnect the battery negative ( - ) terminal.
  2. Remove the glow relay unit assembly. U 1.6 (Refer to Engine Electrical System - "Glow Relay Unit Assembly")
  3. Pull up the lock of the ESC control unit (HECU) connector and then disconnect the connector (A).

  1. Separate the brake mbe by removing the flare nuts (A), (B) connected to the ESC control unit (HECU).

Tightening torque :

(A): 13.7 - 16.7 N m (1.4 - 1.7 kgfrn. 10.1 - 12.3 lb ft)

(B) : 18.6 - 22.6 N m (1.9 - 2.3 kgfrn, 13.7 - 16.6 lb ft)

  1. Remove the bracket mounting nuts and remove the ESC control unit (HECU) (A) from the vehicle.

Tightening torque : 16.7 - 25.5 N m (1.7 - 2.6 kgfm, 12.3 - 18.8 lb ft)

  1. Remove the bolts to remove the bracket (B) from the ESC control unit (HECU) (A).

Installation

Installation

  1. Install in the reverse order of removal.
  2. After installation, bleed the brake system.

    (Refer to Brake System - "Brake Bleeding Procedures")

  3. Conduct the Variant Coding.
  4. Conduct the Auto Detected Sensor Calibration.
  5. Conduct the Longitudinal G Sensor Calibration.
  6. After replacing the ESC control unit execute the "Assembly Check (ECU replacement)" of the additional function to check that the mounting is successful.

    READ NEXT:

     ESC Control unit (HECU) - Adjustment

    Adjustment Perform diagnostic procedure by using diagnostic device as shown below : Connect self-diagnosis connector (16pins) located under the driver side crash pad to self-diagnosis device, and then torn the self-diagnosis device after ke

     Front wheel speed sensor/ Front wheel speed sensor connector

    Components Front wheel speed sensor Front wheel speed sensor connector Removal Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported. Remove the front wheel and tire (A) from the front hub.

     Rear wheel speed sensor

    Components 2WD Rear wheel speed sensor 4WD Rear wheel speed sensor Rear wheel speed sensor- Removal- 2WD Removal 2WD Loosen the wheel nuts slightly. Raise the vehicle, and make sure it is securely supported. Remove th

    SEE MORE:

     Ignition Switch Assembly

    Removal Disconnect the negative (-) batteiy terminal. Remove the steering column upper and lower shrouds. (Refer to Body - "Steering Column Shroud Panel") Remove the ignition switch (A) after disconnecting the 6P connector (B).

     Transfer Assembly- Installation

    To install, reverse the removal procedures. WARNING Be careful not to damage the O-ring (A). If the O-ring is damaged, replace with a new one. Smear and cover splines (B) with molybdenum type high pressure grease. GREASE SPL-1 eq

    Information

    2022-2025 © - www.tucsondatamanu.com