Brake Bleeding: Service and Repair
BRAKE FLUIDBLEEDING
HINT:
^ If any work is performed on the brake system or if air in the brake lines is suspected, bleed air from the brake system.
^ When bleeding air, keep the amount of brake fluid between the reservoir's MIN and MAX lines.
NOTICE:
^ Wash off brake fluid immediately if it comes in contact with any painted surface.
^ When depressing the brake pedal with the reservoir cap removed, fluid will spray.
1. FILL RESERVOIR WITH BRAKE FLUID
Fluid: SAE J1703 or FMVSS NO. 116 DOT3
2. BLEED AIR FROM HYDRAULIC BRAKE MASTER CYLINDER (When using intelligent tester)
HINT: If the hydraulic brake master cylinder has been disassembled, disconnect the brake line from the hydraulic brake master cylinder; or if the reservoir becomes empty, bleed air from the hydraulic brake master cylinder.
(a) Turn the ignition switch OFF, and then depress the brake pedal more than 40 times.
HINT: When the power supply system's pressure is released, the brake pedal resistance decreases.
(b) Turn the ignition switch ON, and then check that the pump stops after approximately 30 to 40 seconds.
NOTICE: When the pump does not stop, repeat the previous 2 steps again.
(c) With the ignition switch still ON, depress the brake pedal more than 20 times.
(d) Bleed air from the right and left front brake cylinders using the "BLEED AIR FROM BRAKE LINE" procedures.
(e) While depressing and holding the brake pedal, bleed air from the right and left rear brake cylinders.
HINT: It is necessary to depress the brake pedal several times. Depressing and holding the brake pedal will cause the fluid to flow continuously.
(f) Connect the intelligent tester.
(1) Turn the ignition switch OFF, and connect the intelligent tester to the DLC3.
(2) Turn the ignition switch ON, and select "AIR BLEEDING" on the intelligent tester.
HINT: Please refer to the intelligent tester operator's manual for further details.
(g) Bleed air from the right front brake line.
(1) Select "FR LINE" on the intelligent tester.
(2) With "FR LINE" turned ON with the intelligent tester, depress the brake pedal and hold it to bleed air from the right front brake cylinder.
(3) Repeat step (2) until there are no air bubbles in the fluid.
(h) Bleed air from the left front brake line.
(1) Select "FL LINE" on the intelligent tester.
(2) With "FL LINE" turned ON with the intelligent tester, depress the brake pedal and hold it to bleed air from the left front brake cylinder.
(3) Repeat the previous step until there are no air bubbles in the fluid.
(i) Bleed air from the rear brake line.
(1) Select "RR LINE" on the intelligent tester.
(2) With "RR LINE" turned ON with the intelligent tester, depress the brake pedal and hold it to bleed air from the left and right rear brake cylinders.
(j) Disconnect the intelligent tester from the DLC3.
(k) Clear the DTC.
3. BLEED AIR FROM HYDRAULIC BRAKE MASTER CYLINDER (When using ABS actuator checker (SST))
HINT: If the hydraulic brake master cylinder has been disassembled, disconnect the brake line from the hydraulic brake master cylinder; or if the reservoir becomes empty, bleed air from the hydraulic brake master cylinder.
(a) Disconnect the 2 connectors from the hydraulic brake master cylinder.
(b) Connect the actuator checker (SST) to the hydraulic brake master cylinder side wire harness via the sub-wire harness S (SST), as shown in the illustration.
SST 09990-00150, 09990-00480
HINT: Connect the connector with the label "AIR BLEED" attached to the connector of the actuator checker.
(c) Connect the red cable of the actuator checker to the positive (+) battery terminal and the black cable to the negative (-) battery terminal.
(d) Turn the ignition switch OFF, and then depress the brake pedal more than 40 times.
HINT: When the power supply system's pressure is released, the brake pedal resistance decreases.
(e) Turn the ignition switch ON, and then check that the pump stops after approximately 30 to 40 seconds.
NOTICE: If the pump does not stop, repeat the previous 2 steps again.
(f) With the ignition switch still ON, depress the brake pedal more than 20 times.
(g) Bleed air from the right and left front brake cylinders using the "BLEED AIR FROM BRAKE LINE" procedures.
(h) While depressing and holding the brake pedal, bleed air from the right and left rear brake cylinders.
HINT: It is necessary to depress the brake pedal several times. Depressing and holding the brake pedal will cause the fluid to flow continuously.
(i) Bleed air from the right front brake line.
(1) Turn the selector switch of the actuator checker to the "FRONT RH" position.
(2) Push and hold the MAIN switch. Then depress and hold the brake pedal to bleed air from the right front brake cylinder.
NOTICE: Do not keep the MAIN switch pushed for more than 10 seconds. When operating it consecutively, wait 20 seconds between each operation.
(3) Repeat the previous step until there are no air bubbles in the fluid.
(j) Bleed air from the left front brake line.
(1) Turn the selector switch of the actuator checker to the "FRONT LH" position.
(2) Push and hold the MAIN switch. Then depress and hold the brake pedal to bleed air from the left front brake cylinder.
NOTICE: Do not keep the MAIN switch pushed for more than 10 seconds. When operating it consecutively, wait 20 seconds between each operation.
(3) Repeat the previous step until there are no air bubbles in the fluid.
(k) Bleed air from the right rear brake line.
(1) Push and hold the "SUB LH" and "SUB RH" switches. Then bleed air from the right rear brake cylinder.
NOTICE: Do not keep the MAIN switch pushed for more than 10 seconds. When operating it consecutively, wait 20 seconds between each operation.
(2) Repeat the previous step until there are no air bubbles in the fluid.
(l) Use the same procedures described above to bleed air from the left rear brake line.
(m) Disconnect the actuator checker (SST) and sub-wire harness (SST) from the actuator.
SST 09990-00150, 09990-00480
(n) Connect the 2 connectors to the hydraulic brake master cylinder.
(o) Clear the DTC.
4. BLEED AIR FROM BRAKE LINE
(a) Remove the bleeder plug cap.
(b) Connect a vinyl tube to the bleeder plug.
(c) Depress the brake pedal several times, and then loosen the bleeder plug with the brake pedal held down.
(d) When fluid stops coming out, immediately tighten the bleeder plug. Then release the brake pedal.
(e) Repeat the previous 2 steps until all the air in the fluid is gone.
(f) Tighten the bleeder plug.
Torque: 11 N*m (110 kgf*cm, 8 ft.*lbf)
(g) Install the bleeder plug cap.
(h) Repeat the steps above to bleed the air out of the brake line for each wheel.
5. CHECK BRAKE FLUID LEVEL IN RESERVOIR
(a) With the ignition switch OFF, depress the brake pedal more than 40 times.
HINT: When the power supply system's pressure is released, the brake pedal resistance decreases.
(b) Remove the reservoir cap. Add brake fluid up to the MAX line.
Fluid: SAE J1703 or FMVSS NO. 116 DOT3