BRAKE ACTUATOR ON-VEHICLE INSPECTION


  1. BRAKE ACTUATOR INSPECTION


    1. Prepare for the inspection.


      1. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

        Note

        Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

      2. A01CIIPE01

        Connect the intelligent tester to the DLC3 and start the engine.

      3. Follow the instructions on the tester display and enter ACTIVE TEST mode.

    2. Inspect actuator motor operation.

      Note

      Do not leave the motor relay running for more than 5 seconds. Make sure to wait for 20 seconds between each relay operation.


      1. Turn ON the motor relay. Check that noise occurs from the actuator motor.

      2. Turn OFF the motor relay.

      3. Depress and hold the brake pedal for 15 seconds. Without releasing the pedal, increase the pressure on the pedal. Check that the pedal cannot be depressed any further.

      4. While keeping the brake pedal depressed, turn ON the motor relay. Check that the pedal does not vibrate.

      5. Turn OFF the motor relay and release the pedal.

    3. Inspect solenoid valve operation for the front-right wheel.

      Note


      • Do not leave the motor relay or solenoid valves running for more than 5 seconds. Make sure to wait for 20 seconds between each relay or solenoid valve operation.

      • Each solenoid valve's ACTIVE TEST lasts approximately 2 seconds and ends (turns off) automatically.

      • Do not depress the brake pedal while only the pressure reducing valve is being operated.

      • Do not turn on any solenoid valves unless specified in the instructions.


      1. Depress and hold the brake pedal. (Procedure"*1")

      2. Turn ON the SFRH and SFRR solenoid valves simultaneously. Without releasing the pedal, increase pressure on the pedal. Check that the pedal cannot be depressed any further. (Procedure"*2")

      3. Continue to depress and hold the brake pedal. Then, turn OFF the SFRH and SFRR solenoid valves simultaneously. Increase pressure on the pedal. Check that the pedal can be depressed further. (Procedure"*3")

      4. Turn on the motor relay and check that the pedal returns to its reset state. (Procedure"*4")

      5. Check the solenoid valves of the other wheels in the same way (Repeat (Procedure"*1"), (Procedure"*2"), (Procedure"*3") and (Procedure"*4").).

        Tech Tips

        The solenoid valves for the other wheel are: SFLH and SFLR for the front-left wheel, and SRH and SRR for the rear wheels.