Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

OK
(b) Turn the ignition switch to the ON position.
(c) Turn Techstream ON.
(d) Select the "Data List" mode on the Techstream.
ABS/VSC/TRAC
TESTER
DISPLAY
MEASUREMENT ITEM / RANGE NORMAL
CONDITION
DIAGNOSTIC NOTE
Accumulator
Sensor
Accumulator pressure sensor
reading / min.: 0 V, max.: 5 V
3.58 to 5 V
If value constant regardless of pump
operation, accumulator pressure sensor
malfunction suspected.
(e) Check that the accumulator's output value is in the Normal Condition range.
OK:
Accumulator pressure sensor value is in the Normal Condition.
NG
REPLACE MASTER CYLINDER SOLENOID
4. RECONFIRM DTC
(a) Clear the DTCs .
(b) Check if the same DTCs are recorded.
RESULT PROCEED TO
DTC output A
DTC not output B
B
END
A
REPLACE MASTER CYLINDER SOLENOID
5. INSPECT BRAKE BOOSTER PUMP ASSEMBLY
(a) Remove the hydraulic brake booster assembly .
(b) Using a screwdriver, remove the 2 screws and pull out the wire harness from the master cylinder
solenoid.
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