ABS & TRAC Actuator

ON-VEHICLE INSPECTION

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.

1. INSPECT BATTERY POSITIVE VOLTAGE

Battery positive voltage: 10 - 14 Volts

2. DISCONNECT CONNECTORS





Disconnect the 2 connectors from the actuator.
3. CONNECT ACTUATOR CHECKER (SST)
a. Connect the actuator checker (SST) to the actuator side connector via the sub-wire harness (SST), as shown.
SST 09990 - 00150, 09990 - 00250, 09990 - 00360, 09990 - 00450





b. 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.





c. Place the "SHEET A" (SST) on the actuator checker.
SST 09990 - 00163
4. INSPECT BRAKE ACTUATOR OPERATION
a. Start the engine, and run it at idle.
b. Turn the selector switch of the actuator checker to "FRONT RH" position.
c. Push and hold in the MOTOR switch for a few seconds.





d. Depress the brake pedal and hold it until step (g) is completed.
e. Push the POWER SWITCH, and check that the brake pedal does not go down.

NOTICE: Do not keep the POWER SWITCH pushed down for more than 10 seconds.

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





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





i. Push and hold in the MOTOR switch for a few seconds.
j. 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.
k. Release the brake pedal.





l. Turn the selector switch to "FRONT LH" position.
m. Repeat (c) to (j), checking the actuator operation similarly.
n. Similarly, inspect "REAR RH" and "REAR LH" position.

HINT: When inspecting "REAR LH" position, push the REAR LH, switch instead of the POWER SWITCH, and you can inspect in any selector switch position.





o. Push and hold in the MOTOR switch for a few seconds.
p. Stop the engine.
5. DISCONNECT ACTUATOR CHECKER (SST) FROM ACTUATOR
Remove the "SHEET A" (SST) and disconnect the actuator checker (SST) and sub-wire harness (SST) from the actuator.
SST 09990 - 00150, 09990 - 00163, 09990 - 00250, 09990 - 00360, 09990 - 00450
6. CONNECT CONNECTORS
Connect the 2 connectors to the actuator.
7. CLEAR DTC