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BR-62
BRAKE - ABS ACTUATOR

ABS ACTUATOR BR10Z-02

ON-VEHICLE INSPECTION
1. CONNECT HAND-HELD TESTER
(a) Connect the hand-held tester to the DLC3.
(b) Start the engine and run it at idle.
Hand-held (c) Select ACTIVE TEST mode on the hand-held tester.
Tester
HINT:
DLC3 D05981
Please refer to the hand-held tester operator's manual for fur-
ther details.
2. INSPECT ABS ACTUATOR MOTOR OPERATION
(a) Select the "ABS MOT RELAY" on the hand-held tester
display, then operate the ABS actuator motor.
(b) Check that the operation sound of the ABS motor can be
heard when the ABS actuator relay is turned ON by the
hand-held tester.
NOTICE:
Do not keep the motor relay ON for more than 5 seconds
continuously. When operating it continuously, set the inter-
val of more than 20 seconds.
If the operation sound cannot be heard, replace the ABS actua-
tor because motor operation is in failure.
(c) Turn the motor relay OFF.
3. INSPECT RIGHT FRONT WHEEL SOLENOID
(a) Depress the brake pedal and hold it for about 15 seconds,
and then check that the brake pedal does not go down fur-
ther.
If the brake pedal goes down, replace the ABS actuator be-
cause the sealing condition of the reduction solenoid valve is
abnormal.
(b) Select the "ABS MOT RELAY" on the hand-held tester
display, then operate the ABS actuator motor.
(c) Check that the brake pedal does not pulsate when the
motor relay is turned ON by the hand-held tester.
NOTICE:
Do not keep the motor relay ON for more than 5 seconds
continuously. When operating it continuously, set the inter-
val of more than 20 seconds.
If there is pulsation in the brake pedal, replace the ABS actuator
because the sealing condition of the reduction solenoid valve
is abnormal.
(d) Turn the ABS actuator motor OFF.
(e) Depress the brake pedal and hold it until step (j) is com-
pleted.
(f) Select the "SFRH" on the hand-held tester display, then
operate the solenoid.
(g) Check that the brake pedal does not go down further
when the SFRH solenoid is turned ON by the hand-held
tester.
BR-63
BRAKE - ABS ACTUATOR

NOTICE:
Do not keep the solenoid ON for more than 2 seconds con-
tinuously. When operating it continuously, set the interval
of more than 20 seconds.
If the brake pedal goes down, replace the ABS actuator be-
cause holding solenoid valve operation is abnormal.
HINT:
To protect the solenoid, the hand-held tester turns OFF auto-
matically 2 seconds after the solenoid has been turned ON.
(h) Select the "SFRR" on the hand-held tester display, then
operate the solenoid.
(i) Check that the brake pedal goes down further when the
SFRR solenoid is turned ON by the hand-held tester.
If the brake pedal does not go down, replace the ABS actuator
because reduction solenoid valve operation is abnormal.
(j) Check that the brake pedal returns when the motor relay
is turned ON by the hand-held tester.
NOTICE:
Do not keep the motor relay ON for more than 5 seconds
continuously. When operating it continuously, set the inter-
val of more than 20 seconds.
If the brake pedal does not return, replace the ABS actuator be-
cause motor operation is in failure.
(k) Turn the motor relay OFF and release the brake pedal.
4. INSPECT OTHER WHEEL SOLENOIDS OPERATION
Check the solenoids of the other wheels by following the same
inspection procedures as for the right front wheel solenoids.
HINT:
Left front wheel: "SFLH" and "SFLR"
Right rear wheel: "SRRH" and "SRRR"
Right front wheel: "SFRR" and SFRH"
NOTICE:
Never depress the brake pedal when the reduction sole-
noid alone is turned ON and the ABS ECU is reset.
5. CLEAR DTC (See page DI-1397)

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