BLEEDING
CAUTION / NOTICE / HINT
NOTICE:
HINT:
As the ECB (Electronically Controlled Brake system) contains complicated brake fluid passages, dissolved gases in the brake fluid may form bubbles as the brake fluid pressure decreases.
Replaced/Installed Item | Work Procedure |
---|---|
Flexible hose (front/rear) | Bleed brake line |
Disc brake cylinder assembly (front/rear) | |
Brake booster pump assembly | Bleed brake system |
Brake booster with master cylinder assembly | |
Brake actuator assembly |
HINT:
There are 2 ways of brake line bleeding: using the Techstream or not using the Techstream.
PROCEDURE
1. BLEED BRAKE LINE (When Using the Techstream)
(a) Fill the reservoir with brake fluid.
(1) Remove the brake master cylinder reservoir filler cap assembly. | |
(2) Add brake fluid to the reservoir until the fluid level is between the MAX and MIN lines on the brake fluid reservoir.
Brake Fluid:
SAE J1703 or FMVSS No. 116 DOT3
SAE J1704 or FMVSS No. 116 DOT4
(b) Bleed the brake line.
(1) Connect the Techstream to the DLC3 and turn the power switch on (IG).
(2) Turn the Techstream on and enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Air Bleeding/AHB-R Utility.
Chassis > ABS/VSC/TRAC > Utility Tester Display |
---|
Air Bleeding/AHB-R Utility |
(3) Select "Brake Line Air Bleeding", and bleed air from the brake fluid following the instructions on the Techstream.
HINT:
When the brake pedal is released, the piston inside the master cylinder may take longer than the brake pedal to return to its original position. Therefore, make sure to wait for 1 second or more between each depression of the brake pedal.
(4) After air bleeding, tighten each bleeder plug.
Torque:
8.3 N·m {85 kgf·cm, 73 in·lbf}
(5) Clear the DTCs.
Click here
(6) Turn the Techstream off then turn the power switch off.
(c) Install the brake master cylinder reservoir filler cap assembly.
(d) Inspect for brake fluid leaks.
2. BLEED BRAKE LINE (When Not Using the Techstream)
NOTICE:
The shift lever is moved from P to any other position. |
The power switch is turned on (READY). |
The power switch is turned off. |
The parking brake is released. |
The vehicle speed is more than 0 km/h (0 mph). |
(a) Remove all 4 wheels.
Click here
(b) Enter ECB (Electronically Controlled Brake system) Invalid Mode.
(1) Perform the procedure listed below within 1 minute.
(2) Check that the brake warning light is blinking (yellow). |
|
(c) Fill the reservoir with brake fluid.
(1) Remove the brake master cylinder reservoir filler cap assembly. | |
(2) Add brake fluid to the reservoir until the fluid level is between the MAX and MIN lines on the brake fluid reservoir.
Brake Fluid:
SAE J1703 or FMVSS No. 116 DOT3
SAE J1704 or FMVSS No. 116 DOT4
(d) Bleed the brake lines.
(1) Connect a vinyl tube to the bleeder plug of the front disc brake cylinder assembly RH.
(2) Depress the brake pedal several times with approximately 1 second between each depression, and then loosen the bleeder plug with the pedal depressed.*1
(3) When brake fluid stops coming out, tighten the bleeder plug and then release the brake pedal for 1 second or more.*2
HINT:
When the brake pedal is released, the piston inside the master cylinder may take longer than the brake pedal to return to its original position. Therefore, make sure to wait for 1 second or more between each depression of the brake pedal.
(4) Repeat steps *1 and *2 until all the air in the brake fluid is completely bled out.
(5) Tighten the bleeder plug completely.
Torque:
8.3 N·m {85 kgf·cm, 73 in·lbf}
(6) Bleed the brake lines from the front disc brake cylinder assembly LH using the same procedure as for the RH side.
(7) Connect a vinyl tube to the bleeder plug of the rear disc brake cylinder assembly LH.
(8) Depress the brake pedal several times with approximately 1 second between each depression, and then loosen the bleeder plug with the pedal depressed.*3
(9) When brake fluid stops coming out, tighten the bleeder plug and then release the brake pedal for 1 second or more.*4
HINT:
When the brake pedal is released, the piston inside the master cylinder may take longer than the brake pedal to return to its original position. Therefore, make sure to wait for 1 second or more between each depression of the brake pedal.
(10) Repeat steps *3 and *4 until all the air in the brake fluid is completely bled out.
(11) Tighten the bleeder plug completely.
Torque:
8.3 N·m {85 kgf·cm, 73 in·lbf}
(12) Bleed the brake lines from the rear disc brake cylinder assembly RH using the same procedure as for the LH side.
(13) Turn the power switch off.
(e) Inspect for brake fluid leaks.
(f) Adjust the brake fluid level in the reservoir.
Click here
(g) Install the brake master cylinder reservoir filler cap assembly.
(h) Install the 4 wheels.
Click here
3. BLEED BRAKE SYSTEM
CAUTION:
The Techstream must be used for bleeding the brake system. If not used, the air bleeding will be incomplete, which is hazardous and may lead to an accident.
(a) Fill the reservoir with brake fluid.
(1) Remove the brake master cylinder reservoir filler cap assembly. | |
(2) Add brake fluid to the reservoir until the fluid level is between the MAX and MIN lines on the brake fluid reservoir.
Brake Fluid:
SAE J1703 or FMVSS No. 116 DOT3
SAE J1704 or FMVSS No. 116 DOT4
(b) Bleed the brake system.
(1) Connect the Techstream to the DLC3 and turn the power switch on (IG).
(2) Turn the Techstream on and enter the following menus: Chassis / ABS/VSC/TRAC / Utility / Air Bleeding/AHB-R Utility.
Chassis > ABS/VSC/TRAC > Utility Tester Display |
---|
Air Bleeding/AHB-R Utility |
(3) Select "Brake System Air Bleeding", and bleed air from brake fluid following the instructions on the Techstream.
NOTICE:
Before following the instructions on the Techstream to perform linear valve offset calibration and ABS solenoid valve offset calibration, release the parking brake. When calibration is complete, immediately apply the parking brake.
HINT:
When the brake pedal is released, the piston inside the master cylinder may take longer than the brake pedal to return to its original position. Therefore, make sure to wait for 1 second or more between each depression of the brake pedal.
(4) After air bleeding, tighten each bleeder plug.
Torque:
8.3 N·m {85 kgf·cm, 73 in·lbf}
(5) Clear the DTCs.
Click here
(6) Turn the Techstream off then turn the power switch off.
(c) Install the brake master cylinder reservoir filler cap assembly.
(d) Inspect for brake fluid leaks.