Hydraulic Control Assembly - Antilock Brakes: Testing and Inspection

Nippondenso Type (ABS Only)

ABS Actuator (Nippondenso Type - ABS Only):

Brake Line Disconnection From ABS Actuator:

NOTE: 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.

INSPECTION
1. Inspect battery positive voltage.
- Battery positive voltage: 10-14V

ABS Actuator Connectors:

2. Disconnect the 2 connectors from the Actuator.

ABS Actuator Sub-Harnesses G & L:

3. Connect Actuator checker (SST).
(a) Connect the Actuator checker (SST) to the Actuator side wire harness via the sub-wire harness (SST), as shown.
SST 09990-00150, 09990-00250, 0999O-00300, 09990-00360
(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 P" (SST) on the Actuator checker.
SST O9990-OO43O
4. Inspect brake Actuator operation.
(a) Start the engine, and run it at idle.

ABS Actuator Checker SST 09990-00430:

(b) Turn the selector switch of the Actuator checker to "FRONT LH" position.
(c) Push and hold in the MOTOR switch for a few seconds.

ABS Actuator Operation Check:

(d) Depress the Brake Pedal and hold it until step (g) is completed.
(e) Push the MAIN push switch, and check that the Brake Pedal does not go down.

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

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

ABS Actuator Operation Check:

(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.

ABS Actuator Operation Check:

(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 "REAR RH" position.
(m) Repeat (c) to (j), checking the Actuator operation similarly.
(n) Similarly, inspect "REAR LH" and "FRONT RH" position.

ABS Actuator Checker Selector Switch Position:

NOTE: 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.

ABS Actuator Checker MOTOR Switch:

(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 P" (SST) and disconnect the Actuator checker (SST) and sub-wire harness (SST) from the Actuator. SST O999O-OO150, 09990-00250, 09990-00300, 09990-00360, 09990-0430
6. Connect connectors.
Connect the 2 connectors to the Actuator.
7. Clear DTC. ABS (Antilock Brake System)