Sequoia 4WD V8-4.7L (2UZ-FE) (2006)
Hydraulic Control Assembly - Antilock Brakes: Testing and Inspection
ABS and Traction Actuator
ON-VEHICLE INSPECTION
1. CONNECT INTELLIGENT TESTER
a. Connect the TOYOTA intelligent tester to the DLC3.
b. Start the engine and run it at idle.
c. Select the ACTIVE TEST mode on the TOYOTA intelligent tester.
HINT: Please refer to the TOYOTA intelligent tester operator's manual for further details.
2. INSPECT ACTUATOR MOTOR OPERATION
a. With the motor relay ON, check the actuator motor operation noise.
b. Turn the motor relay OFF.
c. Depress the brake pedal and hold it for about 15 seconds. Check that the pedal does not go down any further while holding.
d. With the motor relay ON, check that the pedal does not pulsate.
NOTE: Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously, set the interval of more than 20
seconds.
e. Turn the motor relay OFF and release the brake pedal.
3. INSPECT RIGHT FRONT WHEEL OPERATION
NOTE: Never turn ON the solenoid which is not described below.
a. With the brake pedal depressed, perform the following operations.
b. Turn the SFRH and SFRR solenoid ON simultaneously, and check that the pedal cannot be depressed.
NOTE: Do not keep solenoid ON for more than 10 seconds continuously. When operating it continuously, set the interval of more than 20
seconds.
c. Turn the SFRH and SFRR solenoid OFF simultaneously, and check that the pedal can be depressed.
d. Turn the motor relay ON and check that the pedal returns.
NOTE: Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously, set the interval of more than 20
seconds.
e. Turn the motor relay OFF and release the brake pedal.
4. INSPECT OTHER WHEEL OPERATION
a. As in the same procedure, check the solenoids of other wheels.
HINT:
Left front wheel: SFLH, SFLR
Right rear wheel: SRRH, SRRR
Left rear wheel: SRLH, SRLR
5. CLEAR DTC
