Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

DTC
NO.
DETECTION ITEM DTC DETECTION CONDITION TROUBLE AREA
kgf/cm
2
, 255 psi), master cylinder pressure does not
increase 0.048 MPa (0.5 kgf/cm
2
, 6.9 psi) or more
continuously for 60 seconds.
When vehicle speed is 7 km/h (4.3 mph) and master
cylinder pressure is 2.45 MPa (25.0 kgf/cm
2
, 355 psi)
or more, master cylinder pressure does not increase
0.048 MPa (0.5 kgf/cm
2
, 6.9 psi) or more continuously
for 30 seconds.
Master cylinder pressure does not increase 0.048 MPa
(0.5 kgf/cm
2
, 6.9 psi) or more 5 times or more while
vehicle speed decreases from 40 km/h (25 mph) to 0
km/h (0 mph).
When vehicle speed is 10 km/h (6 mph) or more, noise in
master cylinder pressure value occurs 7 times or more in
5 seconds.
When vehicle speed is 7 km/h (4.3 mph) or more,
braking is performed (stop light switch assembly is ON)
and master cylinder pressure differential value is below
20 MPa/s, difference between master cylinder pressure
estimated from vehicle deceleration and master cylinder
pressure sensor input value is large for 1 second or more
5 times or more.
pressure
sensor)
C142A
Master Cylinder
Pressure Sensor
Internal
Malfunction
Any of the following is detected:
Master cylinder pressure is 23.328 MPa (237.8 kgf/cm
2
,
3382 psi) or more continuously for 0.1 seconds.
Master cylinder temperature is 150°C (302°F) or more
continuously for 0.1 seconds.
Brake actuator
assembly
(Master
cylinder
pressure
sensor)
C1449
Master Cylinder
Output Value
Malfunction
Master cylinder pressure sensor invalid condition continues for 0.2
seconds or more.
Brake actuator
assembly
(Master
cylinder
pressure
sensor)
HINT:
D
TC will be output when conditions for any of the patterns in the table above are met.
INSPECTION PROCEDURE
NOTICE:
When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store
system information .
PROCEDURE
1. REPLACE BRAKE ACTUATOR ASSEMBLY
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