ESC Control Module bleeding procedure

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.

1. Remove the reservoir cap and fill the brake reservoir with brake fluid.
   CAUTION: If there is any brake fluid on any painted surface, wash it off immediately.
   NOTE: 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.
4. Select and operate according to the instructions on the GDS screen.
   CAUTION: 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.
      Fig 1: Screen Display - ID Register

      Courtesy of HYUNDAI MOTOR AMERICA
   4. Press "OK" to operate motor pump and solenoid valve.
      Fig 2: Screen Display - Motor Pump

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   5. Wait 60 seconds before operating the air bleeding. (If not, you may damage the motor.)
      Fig 3: Screen Display - Air Bleeding

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   6. Perform the air bleeding.
      Fig 4: Screen Display - Perform Air Bleeding

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5. Use the air bleeding tool (SST:09580-3D100) and feed oil pressure (0.3~0.35 MPa (43.5~750.7 psi)) into the reservoir.
6. Loosen the bleed screw (A) on the wheel and initiate air bleeding on all the wheels.

   [Front] 

   Fig 5: Identifying Bleed Screw On Wheel (Front)

   Courtesy of HYUNDAI MOTOR AMERICA

   [Rear] 

   Fig 6: Identifying Bleed Screw On Wheel (Rear)

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7. Repeat the procedure for wheel in the sequence shown in illustration below until air bubbles no longer appear in the fluid.
   Fig 7: Brake Bleeding Sequence

   Courtesy of HYUNDAI MOTOR AMERICA
8. Tighten the bleeder screw.

   Bleed screw tightening torque:  6.9 ~ 12.7 N.m (0.7 ~ 1.3 kgf.m, 5.1 ~ 9.4 lb-ft)

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