BRAKE SYSTEM ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   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 and SST, and connect the GTS.

      
      
      1. 

         Set a pedal effort gauge and SST.

         09709-29018

         09709-00060

         Table 1. Text in Illustration

         *1	Pedal Effort Gauge
         *2	SST (LSPV Gauge)
         *3	SST (No. 1 Nipple)

      2. Connect the GTS to the DLC3 with the power switch off, shift lever in P and the parking brake applied.

      3. Turn the power switch on (IG) and turn the GTS on.

      4. Bleed air from SST (LSPV gauge) (Click here).

   3. Inspect the wheel cylinder pressure sensor and regulator pressure sensor.

      
      

      1. Enter the following menus: Chassis / ABS/VSC/TRC / Active Test / Power Supply Air Bleeding Pattern 1.

      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 N (kgf, lbf) Regulator Pressure Sensor Output (V) Rear Right Wheel Hydraulic Pressure (MPa (kgf/cm2, psi)) Rear Left Wheel Hydraulic Pressure (MPa (kgf/cm2, psi)) 50 (5, 11.2) 0.53 to 1.33 0.10 to 4.10 (1.1 to 41.8, 15 to 594) 0.10 to 4.10 (1.1 to 41.8, 15 to 594) 100 (10, 22.5) 1.32 to 2.12 3.98 to 7.98 (40.6 to 81.3, 578 to 1157) 3.98 to 7.98 (40.6 to 81.3, 578 to 1157) 150 (15, 33.7) 2.10 to 2.90 7.81 to 11.8 (79.7 to 120.4, 1133 to 1713) 7.81 to 11.8 (79.7 to 120.4, 1133 to 1713) 200 (20, 45.0) 2.90 to 3.70 11.8 to 15.7 (119.6 to 160.2, 1700 to 2280) 11.8 to 15.7 (119.6 to 160.2, 1700 to 2280)

         Standard Result

         Pedal Effort N (kgf, lbf) Wheel Cylinder Pressure Sensor (V) Front Right Wheel Hydraulic Pressure (MPa (kgf/cm2, psi)) Front Left Wheel Hydraulic Pressure (MPa (kgf/cm2, psi)) 50 (5, 11.2) 0.67 to 1.07 0.00 to 3.81 (0.0 to 38.8, 0 to 552) 0.00 to 3.81 (0.0 to 38.8, 0 to 552) 100 (10, 22.5) 1.14 to 1.94 3.12 to 5.12 (31.9 to 52.2, 453 to 742) 3.12 to 5.12 (31.9 to 52.2, 453 to 742) 150 (15, 33.7) 1.81 to 2.61 6.40 to 10.4 (65.3 to 106.0, 929 to 1508) 6.40 to 10.4 (65.3 to 106.0, 929 to 1508) 200 (20, 45.0) 2.49 to 3.29 9.72 to 13.7 (99.2 to 139.9, 1410 to 1990) 9.72 to 13.7 (99.2 to 139.9, 1410 to 1990)

      4. After inspection, turn "Power Supply Air Bleeding Pattern 1" off.

   4. Remove pedal effort gauge and SST.

      
      

      1. Remove pedal effort gauge and SST, and bleed brake line (Click here).

   5. Inspect accumulator sensor.

      
      

      1. Enter the following menus: Chassis / ABS/VSC/TRC / Data List "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. Click here

   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 GTS and set a pedal effort gauge.

      
      

      1. Set a pedal effort gauge.

      2. Connect the GTS to the DLC3 with the power switch off, shift lever in P and the parking brake applied.

      3. Turn the power switch on (IG) and turn the GTS on.

      4. Clear the DTCs (Click here).

   3. Check operation without the brake booster.

      
      

      1. Inspect and adjust the brake pedal height.

         
         

         • for LHD:Click here

         • for RHD:Click here

      2. 

         Adjust the brake fluid level in the reservoir between the MIN line and fluid level support line.

         Table 2. Text in Illustration

         *a	Fluid Level Support Line
         *b	MIN Line

      3. Turn the GTS on and enter the following menus: Chassis / ABS/VSC/TRC / Utility / ECB (Electronically Controlled Brake system) Utility / Zero Down.

         Note:

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

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

      5. Check the value output from "Wheel Cylinder Pressure Sensor", "Stroke Sensor" and "Stroke Sensor 2" by depressing the brake pedal.

         Standard Voltage
         Pedal Effort N (kgf, lbf) Wheel Cylinder Pressure Sensor (V) Stroke Sensor (V) Stroke Sensor 2 (V) 200 (20, 45.0) 0.47 to 1.27 1.17 to 1.87 3.13 to 3.83 500 (51, 112.4) 0.95 to 1.75 1.44 to 2.17 1.86 to 2.56

      6. Turn the power switch off to finish "Zero Down".

      7. Turn the power switch on and wait for 20 seconds, then enter the following menus: Chassis / ABS/VSC/TRC / Data List "Accumulator Sensor", and check the output voltage.

         Standard voltage
         2.9 to 4.2 V

3. Click here

   INSPECT STROKE SIMULATOR

   
   

   1. Check auxiliary battery voltage.

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

   2. Connect the GTS and set a pedal effort gauge.

      
      

      1. Set a pedal effort gauge.

      2. Connect the GTS to the DLC3 with the power switch off, shift lever in P and the parking brake applied.

      3. Turn the power switch on (IG) and turn the GTS on.

      4. Clear the DTCs (Click here).

   3. Check operation with the brake booster.

      
      

      1. Turn the power switch on (IG).

      2. Enter the following menus: Chassis / ABS/VSC/TRC / Data List "Stroke Sensor" and "Stroke Sensor 2".

      3. Depress the brake pedal 4 or 5 times.

      4. Check the value output from "Stroke Sensor" and "Stroke Sensor 2" by depressing the brake pedal.

         Standard Voltage
         Pedal Effort N (kgf, lbf) Stroke Sensor (V) Stroke Sensor 2 (V) 50 (5, 11.2) 1.26 to 1.96 3.04 to 3.74 100 (10, 22.5) 1.47 to 2.17 2.83 to 3.53 150 (15, 33.7) 1.60 to 2.30 2.70 to 3.40