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
- Front - right (FR)
- Rear - left (RL)
- Rear - right (RR)
- Front - left (FL)
- MC2
- MCI
- ESC Control unit (HECU) connector
- Bracket
ESC Control unit (HECU)- Removal
Removal
- Disconnect the battery negative ( - ) terminal.
- Remove the glow relay unit assembly. U 1.6 (Refer to Engine Electrical System - "Glow Relay Unit Assembly")
- Pull up the lock of the ESC control unit (HECU) connector and then disconnect the connector (A).
- 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)
- 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)
- Remove the bolts to remove the bracket (B) from the ESC control unit (HECU) (A).
Installation
- Install in the reverse order of removal.
- After installation, bleed the brake system.
(Refer to Brake System - "Brake Bleeding Procedures")
- Conduct the Variant Coding.
- Conduct the Auto Detected Sensor Calibration.
- Conduct the Longitudinal G Sensor Calibration.
- After replacing the ESC control unit execute the "Assembly Check (ECU replacement)" of the additional function to check that the mounting is successful.
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Owner's Manual
- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual