Brake Bleeding Procedure

AHB Brake Bleeding Procedure

1. 1
   Before installing the SST on the vehicle, close the air shut-off valve (A) to set the gauge to the standard value.

   

2. 2
   After connecting the air hose and opening the air shut-off valve (A), adjust the gauge (B) to the standard value.

   Standard pressure value: 0.3 ~ 0.5 MPa (43.5 ~ 72.5 psi)

   

3. 3
   Close the air shut-off valve (A) and remove the cap (B).

   

4. 4
   Remove the brake fluid reservoir cap.
5. 5
   Install the cap (A) SST (0K585-E8100) onto the reservoir.

   

6. 6
   Make sure the check valve (A) is closed, then connect SST (09580-3D100) (A) to the adapter (B).

   

7. 7
   To remove SST (09580-3D100) from the vehicle, first close the air shut-off valve (A).

   

8. 8
   After disconnecting the air hose (B), bleed air from the reservoir by slowly opening the air shut-off valve (A).

   

9. 9
   Remove SST (09580-3D100) and the SST cap (0K585-E8100) from the reservoir.

   

10. 10
    Install the brake fluid reservoir cap.

For bleeding, use the IBAU filled with brake fluid.

1. 1
   Disconnect the negative (-) battery terminal to turn off the IBAU ECU.
2. 2
   Install the air bleeding device (Special Service Tool: 09580-3D100) and stainless steel cap (0K585-E8100) on the reservoir, and apply pressure (0.3–0.5 MPa (43.5–72.5 psi)) to it.

   

3. 3
   Start air bleeding at all bleeder screws until no more air bubbles appear in the fluid. After bleeding is complete, close the bleeder screws.PSBIBAU (2 bleeder screws)4 wheels (15 seconds each)

   

4. 4
   Bleed air by depressing the brake pedal and opening the bleeder screws; then close the bleeder screws and release the brake pedal. Repeat this procedure 10 times.

   • Bleeder screw sequence:IBAU (2 bleeder screws)4 wheels
   • Repeat until no more air bubbles appear in the fluid.
   • Be careful not to draw air into the brake line by opening the bleeder screws too far.
5. 5
   Connect the negative (-) battery terminal to turn on the IBAU ECU.
6. 6
   Set the ECU S/W to brake bleeding mode.

   Set the ECU S/W to air bleeding mode for 30 seconds.

   1. After turning the ignition on with the engine start button, set the front wheels straight ahead and the shift lever to the P (Park) position.
   2. Depress and release the brake pedal 10 times while depressing the brake pedal. DC switch. Make sure the brake pedal is depressed more than 40 mm and fully released without stepping on it.
   3. Turn off the engine start button; then start the engine and turn on the "VDC OFF" switch.

   Air bleeding mode is canceled in each subsequent state.

   1. IGN OFF and shift lever in D/R/N position
   2. Diagnostic Trouble Code Detection
   3. Brake fluid level is below "MIN".
   4. Turn off the "VDC OFF" switch.
7. 7
   Using the air bleeding tool (Special Service Tools: 09580-3D100, 0K585-E8100), supply brake fluid under pressure of 0.3–0.5 MPa (43.5–72.5 psi) to the reservoir. Loosen the bleeder screws on all 4 wheels; then start air bleeding and close them while depressing the brake pedal halfway continuously. Perform 10 times; then release the brake pedal.

   

8. 8
   Connect the GDS to the data link connector located under the instrument panel, and perform "Fluid Circulation Mode" on the GDS. Fluid circulation mode is used to remove air bubbles in the brake fluid that are released into the reservoir when brake fluid circulates inside the IBAU.