Toyota ZZT230 series, Repair Manual

Page: 503 / 821

Dl-292
DTC
C0226121 - C0256/24
CIRCUIT DESCRIPTION
DIAGNOSTICS
-
ANT�OCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE
ABS Actuator Solenoid Circuit
-·
This solenoid goes on when signals are received from the
ECU
and controls the pressure acting on the wheel
cylinders thus controlling the braking force.
•
DTC No.
OTC Detecting Condition
Condition 1 . or 2. continues
for
0.05 sec. or more:
1 . IG1 terminal voltage of ABS ECU
Is
9.5- 18.5
V,
there
0022612,
is opun or short circuit in actuator solenoid SFRR or
SFAH.
2. IG1 lenninal voltage of ABS ECU is 9.5 - 18.5
V, and
while ABS is oontrolin operation.
•1
Condition 1 . or 2. continues for 0.05 sec. or more:
1. lG1 terminal voltage of ABS ECU
is
9.5 - 18.5
V,
there
00238122
is open or short circuit in actuator
solenoid
SFLR or
SA..H.
2. IGI terminal voltage of ABS ECU is 9.5- 18.5
V,
and
while ABS Is control in operatlon.•1
Condition 1. or 2. continues lor 0.05
sec.
or more:
t .
IG1 terminal voltage of ASS ECU Is 9.5- 16.5
V,
there
C0246123
is open or
Short
circuit in actuator solenoid SAAR or
SRRH.
2. IG1 terminal voltage of ABS ECU is
9.5- 16.5 V, and
while ABS is control In operation."1
Condition 1 . or 2. continues lor 0.05 sec. or more:
1. IG1 terminal voltage of ABS ECU
is
9.5-18.5
V,
there
C0256124
is open or short circuit in actuator solenoid SRLR or
SRLH.
2. IG1 terminal voltage of ABS ECU is 9.5 - 18.5
V,
Md
while ABS Is oontrolln operation:!
. .
1
Solenotd relay contact ON condtt1on:
• ABS actuator
• SFRR or SFRH circuit
• ABS actuatOf
•SFLAor SFLH circuit
• ABS actuator
•SARA or SRRH circuit
• ABS actuator
•SRLR or SRLH circu�
All of solenoid terminal voltage is half of IG1 terminal voltage or less than.
Trouble Area