Kia Cadenza YG: ESC(Electronic Stability Control) System / ESC Control Module Repair procedures

Kia Cadenza YG 2016-2021 Service Manual / Brake System / ESC(Electronic Stability Control) System / ESC Control Module Repair procedures

Removal
1.
Turn the ignition switch OFF.
2.
Remove the air duct (B) and air cleaner assembly (A).

3.
Remove the connector and then arrange the wiring harness (A).

4.
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.
5.
Loosen the flare nuts and then remove the brake tube (A).
Tightening torque:
18.6 ~ 22.6 N.m (1.9 ~ 2.3 kgf.m, 13.7 ~ 11.6 lb-ft)

6.
Pull up the lock of the HECU connector (A) and then disconnect the connector.

7.
Disconnect the brake tubes from the HECU by unlocking the nuts (B) counterclockwise with a spanner.
Tightening torque:
12.7 ~ 16.7 N.m (1.3 ~ 1.7 kgf.m, 9.4 ~ 12.3 lb-ft)
8.
Loosen the HECU bracket bolts (A) and then remove HECU and bracket.
Tightening torque :
19.6 ~ 29.4 N.m (2.0 ~ 3.0 kgf.m, 14.5 ~ 21.7 lb-ft)

   
1)
Never attempt to disassemble the HECU.
2)
Never shock the HECU.
9.
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)
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 ABS bleeding)
4.
When you have replaced the HECU always perform variant coding.
Variant Coding
1.
Connect the GDS to the data link connector.
2.
Turn the ignition "ON".
3.
Select vehicle name and system.
4.
Select the variant coding.

5.
Perform variant coding according to the instructions on the screen.

6.
Ignition "OFF" and then ignition "ON".
7.
The variant coding is completed.

    Components (1) 1. Front - left tube2. Rear - right tube3. Rear - left tube4. Front - right tube5. MC26. MC17. ESC control module (HECU)8. Damper9.

    Components 1. Front wheel speed sensor2. Front wheel speed sensor connector

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