Toyota Tundra 2005 Service - Repair - Maintenance page 2638

BR−62
DLC3
BRAKE
ABS ACTUATOR
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:
Please refer to the hand−held tester operator's manual for fur-
D05981
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.
− ABS ACTUATOR
BR10Z−02