Toyota Tundra 2005 Service - Repair - Maintenance page 2639

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)
BR−63