Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

(1) Turn the ignition switch to ON, and wait until the pump motor has stopped (step A).
HINT:
Pump operating sound can be heard.
(2) Turn the ignition switch to OFF, and depress the brake pedal more than 20 times (step B).
HINT:
When pressure in the accumulator is released, the reaction force becomes lighter and the stroke becomes
longer.
(3) Repeat step A and B 5 times (step C).
(
4) Turn the ignition switch to ON, and check that the pump stops after approximately 8 to 14 seconds.
NOTICE:
If the pump does not stop, repeat step C again.
(5) Depress the brake pedal and check the fluid pressure.
At 49 N (5 kgf, 11 lbf):
FRONT BRAKE PRESSURE REAR BRAKE PRESSURE
770 to 1,280 kPa
(7.9 to 13.1 kgf/cm
2
, 112 to 186 psi)
800 to 1,330 kPa
(8.2 to 13.6 kgf/cm
2
, 116 to 193 psi)
At 98 N (10 kgf, 22 lbf):
FRONT BRAKE PRESSURE REAR BRAKE PRESSURE
2,650 to 3,590 kPa
(27.0 to 36.6 kgf/cm
2
, 384 to 521 psi)
2
,680 to 3,630 kPa
(27.3 to 37.0 kgf/cm
2
, 389 to 526 psi)
At 147 N (15 kgf, 33 lbf):
FRONT BRAKE PRESSURE REAR BRAKE PRESSURE
4,680 to 5,720 kPa
(47.7 to 58.3 kgf/cm
2
, 679 to 830 psi)
4,710 to 5,760 kPa
(48.0 to 58.7 kgf/cm
2
, 683 to 835 psi)
At 196 N (20 kgf, 44 lbf):
FRONT BRAKE PRESSURE REAR BRAKE PRESSURE
6,610 to 7,680 kPa
(67.4 to 78.3 kgf/cm
2
, 959 to 1,114 psi)
6,640 to 7,720 kPa
(67.7 to 78.7 kgf/cm
2
, 963 to 1,120 psi)
2. INSPECT BRAKE MASTER CYLINDER OPERATION
(a) Inspect the battery positive voltage.
Battery positive voltage:
10 to 14 V
(b) Turn the ignition switch to OFF, and depress the brake pedal more than 20 times.
HINT:
W
hen pressure in the accumulator is released, the reaction force becomes lighter and the stroke becomes
longer.
cardiagn.com

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