Hyundai i-30: ESP (Electronic Stability Program) System / ESP Control Unit

Hyundai i30 (PD) 2018-2025 Service Manual / Brake System / ESP (Electronic Stability Program) System / ESP Control Unit

Components and components location
Components
[LHD]

1. Front - right tube
2. Rear - left tube
3. Rear - right tube
4. Front - left tube
 5. MC SEC
6. MC PRI
7. ESP Control module (HECU)
8. Bracket

[RHD]

1. Front - right tube
2. Rear - left tube
3. Rear - right tube
4. Front - left tube
 5. MC SEC
6. MC PRI
7. ESP Control module (HECU)
8. Bracket

Repair procedures
Removal
[LHD]
1.
Turn the ignition switch OFF and then disconnect the negative (-) battery cable.
2.
Pull up the lock of the HECU connector (A), then disconnect the connector.
3.
Remove the brake fluid from the master cylinder reservoir with a syringe.
  
•
Be sure to completely remove foreign substances from around brake fluid reservoir and cap before opening the reservoir cap. If not, it may cause contamination of brake fluid and deterioration in braking performance.
•
Do not spill brake fluid on the vehicle, it may damage the paint; if brake fluid does contact the paint, wash it off immediately with water.
4.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque :
12.7 - 16.7 N.m (1.3 - 1.7 kgf.m, 9.4 - 12.3 lb-ft)

Tightening torque :
18.6 - 22.6 N.m (1.9 - 2.3 kgf.m. 13.7 - 16.6 lb-ft)

5.
Loosen the HECU bracket bolts (A), then remove HECU and bracket.
Tightening torque :
16.7 - 25.5 N.m (1.7 - 2.6 kgf.m, 12.3 - 18.8 lb-ft)

6.
Remove the 3 bolts, then remove the bracket from HECU.
Tightening torque :
7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft)
[RHD]
1.
Turn the ignition switch OFF and then disconnect the negative (-) battery cable.
2.
Remove the battery.
(Refer to Engine Electrical System - "Battery")
3.
Remove the ECM
(Refer to Engine Control / Fuel System - "Engine Control Module (ECM)")
4.
Pull up the lock of the HECU connector and then disconnect the connector.
5.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque
A : 110.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 8.0 - 10.1 lb-ft)
B : 18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb-ft)

6.
Loosen the HECU bracket bolts (A) and then remove HECU and bracket.
Tightening torque :
16.7 - 25.5 N.m (1.7 - 2.6 kgf.m, 12.3 - 18.8 lb-ft)

7.
Remove the 3 bolts, then remove the bracket from HECU.
Tightening torque :
10.8 - 13.7 N.m (1.1 - 1.4 kgf.m, 8.0 - 10.1 lb-ft)
Installation
1.
To install, reverse the removal procedure.
2.
Tighten the HECU mounting bolts and nuts to the specified torque.
3.
After installation, bleed the brake system.
(Refer to ESP(Electronic Stability Program) System - "ESP System Bleeding")
4.
Conduct the Variant coding.
5.
Conduct the Auto Detected Sensor Calibration.
6.
Conduct the Longitudinal G Sensor Calibration.
Adjustment
Diagnosis procedure by using diagnostic device
As manual for diagnosis methods by using diagnosis device, the main contents are as follows :
Connect self-diagnosis connector (16pins) located in the lower of driver side crash pad to self-diagnosis device, and then turn the self-diagnosis device after key is ON.
Select the "vehicle model" and "ABS/ESC" on diagnostic tool vehicle selection screen, then select OK.
[Variant Code Reset]

[Auto Detected Sensor Calibration]

[Longitudinal G Sensor Calibration]

    Troubleshooting

    Failure Diagnosis 1. In principle, ESP and TCS controls are prohibited in case of ABS failure. 2...

    ESP OFF Switch

    Description and operation Description 1. The ESP OFF switch is for the user to turn off the ESP system. 2...

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    Categories

    Power windows

    Hyundai i30. Power windows

    (1) Driver’s door power window switch
    (2) Front passenger’s door power window switch
    (3) Rear door (right) power window switch
    (4) Rear door (left) power window switch
    (5) Window opening and closing
    (6) Automatic power window
    (7) Power window lock switch

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