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Home >> Toyota >> 2001 >> Camry LE Sedan V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Brakes and Traction Control >> Antilock Brakes / Traction Control Systems >> Hydraulic Control Assembly - Antilock Brakes >> Testing and Inspection >> ABS Actuator

ABS Actuator

ON-VEHICLE INSPECTION





1. In case of using TOYOTA hand-held tester: INSPECT ACTUATOR
a. Connect the TOYOTA hand-held tester.
1. Connect the TOYOTA hand-held tester to the DLC3.
2. Start the engine and run it at idle.
3. Select the ACTIVE TEST mode on the TOYOTA hand-held tester.

HINT: Please refer to the TOYOTA hand-held tester operator's manual for further details.

b. Inspect the actuator motor operation.
1. With the motor relay ON, check the actuator motor operation noise.
2. Turn the motor relay OFF.
3. Depress the brake pedal and hold it for about 15 seconds. Check that the brake pedal cannot be depressed.
4. With the motor relay ON, check that the pedal does not pulsate.

NOTICE: Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously, set the interval of more than 20 seconds.

5. Turn the motor relay OFF and release the brake pedal.
c. Inspect the right front wheel operation.

NOTICE: Never turn ON the solenoid which is not described.

1. With the brake pedal depressed, perform the following operations.
2. Turn the SFRH and SFRR solenoid ON simultaneously, and check that the pedal cannot be depressed.

NOTICE: Do not keep solenoid ON for more than 10 seconds continuously. When operating it continuously, set the interval of more than 20 seconds.

3. Turn the SFRH and SFRR solenoid OFF simultaneously, and check that the pedal can be depressed.
4. Turn the motor relay ON, and check that the pedal returns.

NOTICE: Do not keep motor relay ON for more than 5 seconds continuously. When operating it continuously, set the interval of more than 20 seconds.

5. Turn the motor relay OFF and release the brake pedal.
d. Inspect the other wheel operation. 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

2. In case of not using TOYOTA hand-held tester: INSPECT ACTUATOR

HINT: Using the ABS actuator checker (SST), check the operation of the actuator. If the actuator does not operate, check the operation of sub-wire harness G. If the solenoid and/or pump motor relay are abnormal, replace the relay and inspect the actuator operation again.





a. Inspect battery positive voltage.
Battery voltage: 10 - 14 V
b. Disconnect the 2 connectors from the actuator.





c. Connect actuator checker (SST).
1. Connect the actuator checker (SST) to the actuator side wire harness via the sub-wire harness (SST).
SST 09990-00150, 09990-00250, 09990-00300, 09990-00360
2. Connect the red cable of the checker to the battery positive (+) terminal and black cable to the negative (-) terminal. Connect the black cable of the sub-wire harness to the battery negative (-) terminal or body ground.
3. Place the "SHEET P" (SST) on the actuator checker.
SST SST 09990-00430
d. Inspect the brake actuator operation.
1. Start the engine, and run it at idle.
2. Turn the selector switch of the actuator checker to "FRONT LH" position.





3. Push and hold in the MOTOR switch for a few seconds.





4. Depress the brake pedal and hold it until step (g) is completed.
5. Push the MAIN push switch, and check that the brake pedal does not go down.

NOTICE: Do not keep the MAIN push switch pushed down for more than 10 seconds.

6. Release the switch, and check that the pedal goes down.





7. Push and hold in the MOTOR switch for a few seconds, and check that the pedal returns.
8. Release the brake pedal.





9. Push and hold in the MOTOR switch for a few seconds.
10. Depress the brake pedal and hold it for about 15 seconds. As you hold the pedal down, push the MOTOR switch for a few seconds. Check that the brake pedal does not pulsate.
11. Release the brake pedal.
12. Turn the selector switch to "REAR RH" position.
13. Repeat (c) to (j), checking the actuator operation similarly.





14. Similarly, inspect "REAR LH" and "FRONT RH" position.

HINT: When inspecting "FRONT RH" position, push the FRONT RH switch instead of the MAIN push switch, and you can inspect in any selector switch position.





15. Push and hold in the MOTOR switch for a few seconds.
16. Stop the engine.
e. Remove the "SHEET P" (SST) and disconnect the actuator checker (SST) and sub-wire harness (SST) from the actuator.
SST 09990-00150, 09990-00250, 09990-00300, 09990-00360, 09990-00430
f. Connect the 2 connectors to the actuator.
g. Clear the DTC.

HINT: Using the ABS actuator checker (SST), check the operation of the actuator. If the actuator does not operate, check the operation of sub-wire harness G. If the solenoid and/or pump motor relay are abnormal, replace the relay and inspect the actuator operation again.


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