Hyundai i-30: ESP (Electronic Stability Program) System / Repair procedures

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

Inspection

ESP System Bleeding

This procedure should be followed to ensure adequate bleeding of air and filling of the ESC unit, brake lines and master cylinder with brake fluid.

Remove the reservoir cap and fill the brake reservoir with brake fluid.

•	If there is any brake fluid on any painted surface, wash it off immediately.

•	When pressure bleeding, do not depress the brake pedal.

•	Recommended fluid........ DOT3 or DOT4

2.	Connect a clear plastic tube to the wheel cylinder bleeder plug and insert the other end of the tube into a half filled clear plastic bottle.

3.	Connect the diagnostic tool to the data link connector located underneath the dash panel.

Select and operate according to the instructions on the diagnostic tool screen

•	You must obey the maximum operating time of the ESC motor with the diagnostic tool to prevent the motor pump from burning.

1)	Select vehicle name.

2)	Select ABS/ESC system.

3)	Select HCU air bleeding mode.

5.	Pump the brake pedal several times, and then loosen the bleeder screw until fluid starts to run out without bubbles. Then close the bleeder screw (A). [Front] [Rear Disc Brake] [Rear Durm Brake]

6.	Repeat the procedure for wheel in the sequence shown below until air bubbles no longer appear in the fluid.

7.	Refill the master cylinder reservoir to MAX (upper) level line.

Schematic diagrams

Schematic Diagrams [Without EPB] [With EPB] Terminal Function [EPB None Apply] PIN No Desciption Current max min 1 Voltage supply for pump motor 40A 10 MΩ 2 - 1...

Troubleshooting

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

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