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 the air from the brake system.
^ When bleeding air, keep the amount of the brake fluid within the reservoir's MIN and MAX lines.
NOTICE:
^ Wash off brake fluid immediately if it comes in contact with any painted surface.
^ With the reservoir cap removed when depressing the brake pedal, the fluid will spray.
1. FILL RESERVOIR WITH BRAKE FLUID
Fluid: SAE J1703 or FMVSS NO. 116 DOT 3
2. When using hand-held tester: BLEED AIR FROM HYDRAULIC BRAKE MASTER CYLINDER
HINT: If the hydraulic brake master cylinder has been disassembled, disconnect the brake line from the hydraulic brake master cylinder; or if reservoir becomes empty, bleed air from the hydraulic brake master cylinder.
a. Turn the ignition switch OFF, and then depress the pedal more than 40 times.
HINT: When the power supply system's pressure is released, the 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 steps (a) and (b) again.
c. With the ignition switch still ON, depress the pedal more than 20 times.
d. Observe the procedure in step 4 and bleed air from the right and left front brake cylinders.
e. While depressing and holding the pedal, bleed air from the right and left rear brake cylinders.
HINT: It is not necessary to depress the pedal several times. Depressing and holding the pedal will cause the fluid to flow continuously.
f. Connect the hand-held tester.
1. Turn the ignition switch OFF, and connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON, and select AIR BLEEDING on the hand-held tester.
HINT: Please refer to the hand-held tester operator's manual for further details.
g. Bleed air from the right front brake line.
1. Select FR LINE on the hand-held tester.
2. With FR LINE turned ON with the hand-held tester, depress the 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 hand-held tester.
2. With FL LINE turned ON with the hand-held tester, depress the pedal and hold it to bleed air from the left front brake cylinder.
3. Repeat step (2) until there are no air bubbles in the fluid.
i. Bleed air from the rear brake line.
1. Select RR LINE on the hand-held tester.
2. With RR LINE turned ON with the hand-held tester, bleed air from the left and right rear brake cylinders.
j. Disconnect the hand-held tester from the DLC3.
k. Clear the DTC.
3. When using ABS actuator checker (SST): BLEED AIR FROM HYDRAULIC BRAKE MASTER CYLINDER
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 of 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 pedal more than 40 times.
HINT: When the power supply system's pressure is released, the pedal resistance decreases.
e. 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 steps (d) and (e) again.
f. With the ignition switch still ON, depress the pedal more than 20 times.
g. Observe the procedure in step 4 and bleed air from the right and left front brake cylinders.
h. While depressing and holding the pedal, bleed air from the right and left rear brake cylinders.
HINT: It is not necessary to depress the pedal several times. Depressing and holding the 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 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 continuously, wait 20 seconds between each operation.
3. Repeat step (2) 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 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 continuously, wait 20 seconds between each operation.
3. Repeat step (2) 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 continuously, wait 20 seconds between each operation.
2. Repeat step (1) until there are no air bubbles in the fluid.
l. Observe the procedure in step (k) and bleed air from the left rear brake cylinder.
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 pedal several times, and then loosen the bleeder plug with the pedal held down.
d. When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.
e. Repeat (c) and (d) until all the air in the fluid is gone.
f. Tighten the bleeder plug.
Torque: 11 Nm (110 kgf-cm, 8 ft. lbs.)
g. Install the bleeder plug cap.
h. Repeat steps (a) to (g) to bleed the air out of the brake line for each wheel.
5. CHECK FLUID LEVEL IN RESERVOIR
a. With the ignition switch OFF, depress the pedal more than 40 times.
HINT: When the power supply system's pressure is released, the pedal resistance decreases.
b. Remove the reservoir cap. Add brake fluid up to the MAX line.
Fluid: SAE J1703 or FMVSS NO. 116 DOT 3