Page 460 of 1943
IN0002
Example
± INTRODUCTIONREPAIR INSTRUCTIONS
IN±7
7 Author: Date:
2001 PRIUS (RM778U)
(m) Installation and removal of vacuum hose:
(1) When disconnecting vacuum hoses, use tags to
identify how they should be reconnected to.
(2) After completing a job, double check that the vacu-
um hoses are properly connected. A label under the
hood shows the proper layout.
(n) Bleeding of hydraulic brake booster system:
When repairing the hydraulic brake booster or ABS,
bleeding the air out of the hydraulic brake booster (See
page BR±4).
(o) Unless otherwise stated, all resistance is measured at an
ambient temperature of 20°C (68°F). Because the resis-
tance may be outside specifications if measured at high
temperatures immediately after the vehicle has been run-
ning, measurement should be made when the engine has
cooled down.
Page 1679 of 1943
BR1J6±01
BR±4
± BRAKEBRAKE FLUID
1519 Author: Date:
2001 PRIUS (RM778U)
BRAKE FLUID
BLEEDING
HINT:
If any work is done on the brake system or if air in the
brake lines is suspected, bleed the air from the system.
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. RELEASE PRESSURE FROM POWER SUPPLY SYS-
TEM
HINT:
If the hydraulic brake booster has been disassembled, discon-
nect the brake line from the hydraulic brake booster or if the res-
ervoir becomes empty, bleed the hydraulic brake booster.
(a) Turn the ignition switch OFF, depress the brake pedal
more than 40 times.
(b) Turn the ignition switch ON, check that the pump stops af-
ter 30 to 40 seconds.
NOTICE:
When the pump does not stop, repeat step (a) and (b) again.
3. BLEED AIR
(a) Turning the ignition switch OFF, bleed the right and left
front brake caliper.
HINT:
Perform air bleeding for each wheel, depress the brake pedal
more than 20 times or more for each.
(b) Turning the ignition switch ON, check that the pump motor
stops.
(c) Fully open the bleeder plug of the right or left rear brake
cylinder and drain the fluid while depressing the brake
pedal for 3 seconds.
HINT:
Perform air bleeding for both wheels on the right or left
side and then do the same on the other side.
It is not necessary to depress the pedal continuously, as
brake fluid flows out by first depressing.
(d) Release the brake pedal and wait until the pump motor
stops.
(e) Repeat step (c) and (d) 7 times or more.
(f) Tighten the bleeder plug of the rear brake cylinder.
Torque: 8.5 N´m (87 kgf´cm, 75 in.´lbf)
(g) While depressing the brake pedal, let air out from the rear
brake cylinder mentioned in (f).
Page 1680 of 1943
F12396
T
TOYOTA
Hand±held Tester
DLC3
± BRAKEBRAKE FLUID
BR±5
1520 Author: Date:
2001 PRIUS (RM778U)
HINT:
Hold the brake pedal depressed, and it is not necessary
to repeat depressing of the pedal.
Do not continuously drain the fluid from the bleeder plug
for more than 3 seconds.
When closing the bleeder plug, wait until the pump motor
stops if it is operated.
Repeat the procedure until air is completely removed.
(h) Perform step (c) to (g) on the other rear brake cylinder.
(i) With the ignition switch ON, check that the pump motor is
stopped.
(j) Fully the bleeder plug of the front left brake cylinder and
drain the fluid while depressing the brake pedal for 3 se-
conds.
(k) Release the brake pedal and wait until the pump motor
stops.
(l) Repeat step (j) and (k) 4 times.
(m) Tighten the bleeder plug of the front left brake cylinder.
Torque: 8.5 N´m (87 kgf´cm, 75 in.´lbf)
(n) While depressing the brake pedal, let air out from the front
left brake cylinder.
HINT:
Hold the brake pedal depressed, and it is not necessary
to repeat depressing of the pedal.
Do not continuously drain the fluid from the bleeder plug
for more than 3 seconds.
When closing the bleeder plug, wait until the pump motor
stops if it is operated.
Repeat the procedure until air is completely removed.
(o) Check that the pump motor is stopped.
(p) Connect TOYOTA hand±held tester.
(1) Turn the ignition switch OFF, connect the TOYOTA
hand±held tester to DLC3.
(2) Turn the ignition switch ON, and select ºAIR
BLEEDINGº on the TOYOTA hand±held tester.
HINT:
Please refer to the TOYOTA hand±held tester operator's manu-
al for further details.
(q) Holding the brake pedal depressed, turn SRRR solenoid
ON with the TOYOTA hand±held tester.
