Using A Lexus Hand-Held Tester

BLEEDING THE BRAKE SYSTEM USING Lexus HAND-HELD TESTER

HINT: If any work is done on the brake system or if air in the brake lines is suspected, bleed the system of air. When bleeding, keep the amount of the fluid within the line of reservoir between Min. and Max.

NOTICE:
- Do not let brake fluid remain on painted surfaces. Wash it off immediately.
- 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 DOT3

2. Bleed hydraulic brake booster.

HINT: If the hydraulic brake booster has been disassembled, disconnect the brake line from the hydraulic brake booster or if the reservoir becomes empty, bleed the hydraulic brake booster.

a. Turn the ignition switch OFF, depress the brake pedal more than 40 times.

HINT: When a pressure in power supply system is released, reaction force becomes light and stroke becomes longer.

b. Turn the ignition switch ON, check that the pump stops after approx. 30 to 40 seconds.

NOTICE: When the pump does not stop, repeat step a) and b) again.

c. With the ignition switch remaining ON, depress the brake pedal more than 20 times.
d. Observe the procedure in step 4 and bleed the right and left front brake caliper.
e. Holding the brake pedal depressed, bleed the right and left rear brake caliper.

HINT: It is not necessary to depress the pedal continuously, as brake fluid flows out by first depression.




f. Connect Lexus hand-held tester.
1) Turn the ignition switch OFF, connect the Lexus hand-held tester to DLC3.
2) Select "AIR BLEEDING" on the Lexus hand-held tester.

HINT: Please refer to the Lexus hand-held tester operator's manual for further details.

g. Bleed right front brake line.
1) Select "FR LINE" on the Lexus hand-held tester.
2) With "FR LINE" turned ON with the Lexus handheld tester, depress the brake pedal and hold it to bleed the right front brake caliper.
3) Repeat step 2) until there are no more air bubbles in the fluid.

h. Bleed left front brake line.
1) Select "FL LINE" on the Lexus hand-held tester.
2) With "FL LINE" turned ON with the Lexus hand held tester, depress the brake pedal and hold it to bleed the left front brake caliper.
3) Repeat step 2) until there are no more air bubbles in the fluid.

i. Disconnect the Lexus hand-held tester from DLC3.
j. Clear the DTC.




3. Bleed brake calipers.
a. Connect the vinyl tube to the brake caliper.
b. Depress the brake pedal several times, then loosen the bleeder plug with the pedal held down.
c. At the point when fluid stops coming out, tighten the bleeder plug, then release the brake pedal.
d. Repeat b) and c) until all the air in the fluid has been bled out.
e. Repeat the above procedure to bleed the brake line for each wheel.
Torque: 11 Nm (8 ft. lbs.)

4. Check fluid level in reservoir.
a. With the ignition switch OFF, depress the brake pedal more than 40 times.

HINT: When a pressure in power supply system is released, reaction force becomes light and stroke becomes longer.

b. Remove the reservoir cap. Add brake fluid up to the "MAX" line.
Fluid: SAE J1703 or FMVSS NO.116 DOT3