Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

A
DTC
NO.
DTC DETECTING CONDITION TROUBLE AREAS
Master cylinder solenoid (Accumulator
pressure sensor)
Hydraulic brake booster assembly
INSPECTION PROCEDURE
PROCEDURE
1. RECONFIRM DTC
(a) Clear the DTCs .
(b) Turn the ignition switch to OFF.
(c) Depress the brake pedal 20 times or more.
(d) Turn the ignition switch to the ON position.
(e) Wait for 99 seconds.
(f) Check if the same DTCs are recorded.
RESULT PROCEED TO
DTC output A
DTC not output B
B
END
2. INSPECT HYDRAULIC BRAKE BOOSTER ASSEMBLY FUNCTION
(a) Inspect brake booster pump power supply system function.
(1) Turn the ignition switch off.
(2) Depress the brake pedal 20 times or more to release the pressure in the accumulator.
HINT:
W
hen the pressure is released, the brake pedal stroke becomes longer.
(3) Check that the brake fluid level is at the MAX level.
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