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Home >> Toyota >> 2021 >> RAV4 XLE, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (W/O Vacuum Brake Booster) - Inspection >> BRAKE SYSTEM (w/o Vacuum Brake Booster) >> On-Vehicle Inspection [11/2018 - 12/2021] >> Procedure

On-Vehicle Inspection [11/2018 - 12/2021]: Procedure

  1. INSPECT PRESSURE SENSOR 
    1. Check auxiliary battery voltage.

      Standard Voltage

      11 to 14 V (while the power switch is off)

    2. Set a pedal effort gauge, SST and connect the Techstream.
      1. Set a pedal effort gauge and SST.
        • SST: 09709-29018 
          1. 09709-00060
          2. 09709-00080
        GTY863942Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Pedal Effort Gauge
        *b SST (LSPV Gauge)
        *c SST (No. 1 Nipple)
      2. Connect the Techstream to the DLC3 with the power switch off, park (P) selected and parking brake applied.
      3. Turn the power switch on (IG) and turn the Techstream on.
      4. Bleed air from SST (LSPV gauge).

        Refer to PROCEDURE - Step 2

    3. Inspect the wheel cylinder pressure sensor and regulator pressure sensor.
      1. Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test / Power Supply Air Bleeding Pattern 1.

        Chassis > ABS/VSC/TRAC > Active Test 

        Active Test Display
        Power Supply Air Bleeding Pattern1
        Data List Display
        Regulator Pressure Sensor Output
        Wheel Cylinder Pressure Sensor
      2. Select "Wheel Cylinder Pressure Sensor" and "Regulator Pressure Sensor Output".
      3. Check the value output from "Wheel Cylinder Pressure Sensor" and "Regulator Pressure Sensor Output" by depressing the brake pedal.

        Standard Result

        Pedal Effort Regulator Pressure Sensor Output
        (V)        		 Rear Right Wheel Hydraulic Pressure Rear Left Wheel Hydraulic Pressure
        50 N (5 kgf, 11.2 lbf) 0.60 to 1.40 0.46 to 4.46 MPa (4.7 to 45.4 kgf/cm2 , 67 to 646 psi) 0.46 to 4.46 MPa (4.7 to 45.4 kgf/cm2 , 67 to 646 psi)
        100 N (10 kgf, 22.5 lbf) 1.60 to 2.40 5.33 to 9.33 MPa (54.4 to 95.1 kgf/cm2 , 773 to 1352 psi) 5.33 to 9.33 MPa (54.4 to 95.1 kgf/cm2 , 773 to 1352 psi)
        150 N (15 kgf, 33.7 lbf) 2.59 to 3.39 10.19 to 14.19 MPa (104.0 to 144.6 kgf/cm2 , 1478 to 2057 psi) 10.19 to 14.19 MPa (104.0 to 144.6 kgf/cm2 , 1478 to 2057 psi)
        200 N (20 kgf, 45.0 lbf) 3.58 to 4.38 15.06 to 19.06 MPa (153.6 to 194.3 kgf/cm2 , 2184 to 2763 psi) 15.06 to 19.06 MPa (153.6 to 194.3 kgf/cm2 , 2184 to 2763 psi)

        Standard Result

        Pedal Effort Wheel Cylinder Pressure Sensor
        (V)        		 Front Right Wheel Hydraulic Pressure Front Left Wheel Hydraulic Pressure
        50 N (5 kgf, 11.2 lbf) 0.53 to 1.33 0.11 to 4.11 MPa (1.2 to 41.9 kgf/cm2 , 16 to 595 psi) 0.11 to 4.11 MPa (1.2 to 41.9 kgf/cm2 , 16 to 595 psi)
        100 N (10 kgf, 22.5 lbf) 1.38 to 2.18 4.27 to 8.27 MPa (43.6 to 84.3 kgf/cm2 , 620 to 1199 psi) 4.27 to 8.27 MPa (43.6 to 84.3 kgf/cm2 , 620 to 1199 psi)
        150 N (15 kgf, 33.7 lbf) 2.23 to 3.03 8.44 to 12.44 MPa (86.1 to 126.8 kgf/cm2 , 1224 to 1803 psi) 8.44 to 12.44 MPa (86.1 to 126.8 kgf/cm2 , 1224 to 1803 psi)
        200 N (20 kgf, 45.0 lbf) 3.07 to 3.87 12.57 to 16.57 MPa (128.2 to 168.9 kgf/cm2 , 1823 to 2402 psi) 12.57 to 16.57 MPa (128.2 to 168.9 kgf/cm2 , 1823 to 2402 psi)
      4. After inspection, turn "Power Supply Air Bleeding Pattern 1" off.
    4. Remove the pedal effort gauge and SST.
      1. Remove the pedal effort gauge and SST, and bleed brake line.

        Refer to PROCEDURE - Step 2

    5. Inspect the accumulator sensor.
      1. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Accumulator Sensor.

        Chassis > ABS/VSC/TRAC > Data List 

        Tester Display
        Accumulator Sensor
      2. Depress the brake pedal 4 or 5 times and operate the booster pump motor.
      3. After confirming that the booster pump motor stops, check the output voltage.

        Standard Voltage

        2.9 to 4.2 V

  2. INSPECT BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY 
    1. Check auxiliary battery voltage.

      Standard Voltage

      11 to 14 V (while the power switch is off)

    2. Connect the Techstream and set a pedal effort gauge.
      1. Set a pedal effort gauge.
      2. Connect the Techstream to the DLC3 with the power switch off, park (P) selected and parking brake applied.
      3. Turn the power switch on (IG) and turn the Techstream on.
      4. Clear the DTCs.

        Refer to DTC CHECK / CLEAR [11/2018 - 02/2019] , or refer to DTC CHECK / CLEAR [02/2019 - 12/2021]

    3. Check operation without the brake booster.
      1. Inspect and adjust the brake pedal height.

        Refer to ADJUSTMENT [11/2018 - 12/2021]

      2. Adjust the brake fluid level in the reservoir between MIN line and fluid level support line.
        GTY906100Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Fluid Level Support Line
        *b MIN Line
      3. Turn the Techstream on and enter the following menus: Chassis / ABS/VSC/TRAC / Utility / ECB (Electronically Controlled Brake system) Utility / Zero Down.

        Chassis > ABS/VSC/TRAC > Utility 

        Tester Display
        ECB Utility
        NOTE:

        Go to the next step without turning the power switch off.

      4. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Wheel Cylinder Pressure Sensor, Stroke Sensor and Stroke Sensor 2.

        Chassis > ABS/VSC/TRAC > Data List 

        Tester Display
        Stroke Sensor
        Stroke Sensor2
        Wheel Cylinder Pressure Sensor
      5. Check the values output from "Wheel Cylinder Pressure Sensor", "Stroke Sensor" and "Stroke Sensor 2" by depressing the brake pedal.

        Standard Voltage

        Pedal Effort Wheel Cylinder Pressure Sensor
        (V)        		 Stroke Sensor
        (V)        		 Stroke Sensor 2
        (V)
        200 N (20 kgf, 45.0 lbf) 0.52 to 1.32 1.19 to 1.89 3.11 to 3.81
        500 N (51 kgf, 112.4 lbf) 1.16 to 1.96 1.51 to 2.21 2.79 to 3.49
      6. Turn the power switch off to finish "Zero Down".
      7. Turn the power switch on (IG) and wait for 20 seconds, then enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Accumulator Sensor, and check the output voltage.

        Chassis > ABS/VSC/TRAC > Data List 

        Tester Display
        Accumulator Sensor

        Standard Voltage

        2.9 to 4.2 V

  3. INSPECT STROKE SIMULATOR 
    1. Check auxiliary battery voltage.

      Standard Voltage

      11 to 14 V (while the power switch is off)

    2. Connect the Techstream and set a pedal effort gauge.
      1. Set a pedal effort gauge.
      2. Connect the Techstream to the DLC3 with the power switch off, park (P) selected and parking brake applied.
      3. Turn the power switch on (IG) and turn the Techstream on.
      4. Clear the DTCs.

        Refer to DTC CHECK / CLEAR [11/2018 - 02/2019] , or refer to DTC CHECK / CLEAR [02/2019 - 12/2021]

    3. Check operation with the brake booster.
      1. Turn the power switch on (IG).
      2. Enter the following menus: Chassis / ABS/VSC/TRAC / Data List / Stroke Sensor and Stroke Sensor 2.

        Chassis > ABS/VSC/TRAC > Data List 

        Tester Display
        Stroke Sensor
        Stroke Sensor2
      3. Depress the brake pedal 4 or 5 times.
      4. Check the values output from "Stroke Sensor" and "Stroke Sensor 2" by depressing the brake pedal.

        Standard Voltage

        Pedal Effort Stroke Sensor
        (V)        		 Stroke Sensor 2
        (V)
        50 N (5 kgf, 11.2 lbf) 1.37 to 2.07 2.93 to 3.63
        100 N (10 kgf, 22.5 lbf) 1.66 to 2.36 2.64 to 3.34
        150 N (15 kgf, 33.7 lbf) 1.83 to 2.53 2.47 to 3.17
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