Hyundai Sonata: ESP(Electronic Stability Program) System / Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Brake System / ESP(Electronic Stability Program) System / Repair procedures

Repair procedures

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 GDS to the data link connector located underneath the dash panel.

Select and operate according to the instructions on the GDS screen.

You must obey the maximum operating time of the ABS motor with the GDS to prevent the motor pump from burning.

(1)	Select vehicle name.

(2)	Select Anti-Lock Brake system.

(3)	Select HCU air bleeding mode.

5.	Have someone slowly pump the brake pedal several times, and then apply pressure.

6.	Loosen the right-rear brake bleed screw (A) to allow air to escape from the system. Then tighten the bleed screw securely. [Front] [Rear] [General] [EPB]

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

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

Troubleshooting

Failure Diagnosis 1. In principle, ESP and TCS controls are prohibited in case of ABS failure. 2. When ESP or TCS fails, only the failed system control is prohibited. 3. However, when the ...

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. ...

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