Toyota ZZT230 series Repair Manual page 506

)
DTC
'
CIRCUIT DESCRIPTION
The ASS motor relay supplies power to the ABS pump motor. While the ABS is activated, the ECU
the ABS motor relay
DTCNo.
C0273/ 13
C0274114
• 1
Relay contact OFF condition: MT termtnal voltage
o2
Relay contact ON condition: MT terminal voltage is 3,6
)
)
C0273113, C0274/14
ON
and operates the ABS pump motor.
OTC
Detecting
CondiDon fOr
termlnaiiGl
or2. 0.2 sec.« more:
continues
1 .
when motor
1. ABS ECU voltage
relay Is ON In the
2. Motor controt. • l
operation of ABS
relay Is ON the midst
driving in
tess . •2
of ABS control, ABS ECU terminal IG1
inopel8tion
becomes 9.5 V or
age
Condition below
Is
continues for 4 sec. or
terminal
OFF,
the motor relay
When there Is
of ABS ECU.
-
DIAGNOSTICS
ANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION CEBDJ
ABS Motor Relay Circuit
Condition
Is 9.5 V to 18.5 V, and
mitts! of Initial check or in
of initial ABS
check or
•
ABS
more:
volt·
•
MT
drcuit
open
In
IS
below 3.6
V
or above,
Trouble
Area
motor
relay
motor
relay circuit
V.
01-295
switches