Kia Sportage: ESP(Electronic Stability Program) System / ESP Control Module Repair procedures

Kia Sportage QL (2015-2020) Service Manual / Brake System / ESP(Electronic Stability Program) System / ESP Control Module Repair procedures

Removal
[LHD]
1.
Turn the ignition switch OFF and disconnect the negative (-) batrery terminal.
2.
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.
3.
Pull up the lock of the HECU connector (A) and then disconnect the connector.

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)&nut(B) and then remove HECU and bracket.
Tightening torque:
Mounting bolts : 16.7 - 25.5 N·m (1.7 - 2.6 kgf·m, 12.3 - 18.8 lb·ft)
Mounting nut : 24.5 - 29.4 N·m (2.5 - 3.0 kgf·m, 18.1 - 21.7 lb·ft)

6.
Remove the bolts and 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)

  
1)
Never attempt to disassemble the HECU.
2)
Never shock the HECU.
[RHD]
1.
Turn the ignition switch OFF and disconnect the negative (-) batrery terminal.
2.
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.
3.
Pull up the lock of the HECU connector (A) and then disconnect the connector.

4.
Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner.
Tightening torque :
A : 12.7 - 16.7 N·m (1.3 - 1.7 kgf·m, 9.4 - 12.3 lb·ft)
B : 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) & nut(B) and then remove HECU and bracket.
Tightening torque:
24.5 - 29.4 N·m (2.5 - 3.0 kgf·m, 18.1 - 21.7 lb·ft)

6.
Remove the bolts and then remove the bracket from HECU.
  
1)
Never attempt to disassemble the HECU.
2)
Never shock the HECU.
Installation
1.
Installation is the reverse of removal.
2.
Tighten the HECU mounting bolts and nuts to the specified torque.
3.
After installation, bleed the brake system.
(Refer to Brake system - "Brake system Bleeding")
4.
Conduct the Variant coding.
5.
Conduct the Auto Detected Sensor Calibration.
6.
Conduct the Longitudinal G Sensor Calibration.
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 GDS vehicle selection screen, then select OK.
[Variant Coding]

[Auto Detected Sensor Calibration]

[Longitudinal G Sensor Calibration]

ESP Control Module Components and components location
Components 1. Front - right tube (FR) 2. Rear - left tube (RL) 3. Rear - right tube (RR) 4. Front - left tube (FL) 5. MC2 (SEC) 6. MC1 (PRI) ...

ESP OFF Switch Description and operation
Description 1. The ESP OFF switch is for the user to turn off the ESP system. 2. The ESP OFF lamp is on when ESP OFF switch is engaged. ...

Other information:

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