1. Front - right (FR)
2. Rear - left (RL)
3. Rear - right (RR)
4. Front - left (FL)
5. MC2
6. MC1
7. ESC Control unit (HECU) connector
8. Bracket
1.Disconnect the battery negative ( - ) terminal.
2.Pull up the lock of the ESC control unit (HECU) connector and then disconnect the connector (A).
3.Separate the brake tube 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 kgf·m, 10.1 - 12.3 lb·ft)(B) : 18.6 - 22.6 N·m (1.9 - 2.3 kgf·m, 13.7 - 16.6 lb·ft)
4.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 kgf·m, 12.3 - 18.8 lb·ft)
5.Remove the bolts to remove the bracket (B) from the ESC control unit (HECU) (A).
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.
1.Connect self-diagnosis connector (16pins) located under the driver side crash pad to self-diagnosis device, and then turn 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.
Hyundai Tucson (NX4) 2022-2025 Service Manual: Repair procedures
- Adjustment
1.Place the car on a flat surface and check whether the body and trunk lid are well-aligned.
2.After loosening the liftgate hinge (A) mounting bolt, adjust the liftgate by moving it up and down or from side to side.
3.Adjust the gap between the liftgate and body by turning the ...
Hyundai Tucson (NX4) 2022-2025 Service Manual: Photo Sensor
- Description
1.The photo sensor is located at the center of the defrost nozzles.
2.The photo sensor contains a photovoltaic (sensitive to sunlight)
diode. The solar radiation received by its light receiving portion,
generates an electromotive force in proportion to the amount of
radiati ...