BRAKE SYSTEM ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
DTCs may be stored during the inspection procedure. Be sure to clear the DTCs and check that no DTCs are output after the inspection is finished.
PROCEDURE
INSPECT PRESSURE SENSOR
Check auxiliary battery voltage.
Standard voltage
11 to 14 V (while the power switch is off)
Set a pedal effort gauge and SST and connect the GTS.
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*a
Pedal Effort Gauge
*b
SST (LSPV Gauge)
*c
SST (No. 1 Nipple)
Set a pedal effort gauge and SST.
09709-29018
09709-00060
Connect the GTS to the DLC3 with the power switch off, park (P) selected and parking brake applied.
Turn the power switch on (IG) and turn the GTS on.
Bleed air from SST (LSPV gauge).
-
Inspect the wheel cylinder pressure sensor and regulator pressure sensor.
Enter the following menus: Chassis / ABS/VSC/TRC / Active Test / Power Supply Air Bleeding Pattern 1.
Chassis > ABS/VSC/TRC > Active Test
Active Test Display
Power Supply Air Bleeding Pattern1
Data List Display
Regulator Pressure Sensor Output
Wheel Cylinder Pressure Sensor
Select "Wheel Cylinder Pressure Sensor" and "Regulator Pressure Sensor Output".
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)
0.59 to 1.39
0.42 to 4.42 MPa (4.3 to 45.0 kgf/cm2, 62 to 653 psi)
0.42 to 4.42 MPa (4.3 to 45.0 kgf/cm2, 62 to 653 psi)
100 N (10 kgf, 22.5 lbf)
1.51 to 2.31
4.89 to 8.89 MPa (49.9 to 90.6 kgf/cm2, 722 to 1314 psi)
4.89 to 8.89 MPa (49.9 to 90.6 kgf/cm2, 722 to 1314 psi)
150 N (15 kgf, 33.7 lbf)
2.36 to 3.16
9.09 to 13.09 MPa (92.7 to 133.4 kgf/cm2, 1344 to 1935 psi)
9.09 to 13.09 MPa (92.7 to 133.4 kgf/cm2, 1344 to 1935 psi)
200 N (20 kgf, 45.0 lbf)
3.17 to 3.97
13.06 to 17.06 MPa (133.2 to 173.9 kgf/cm2, 1930 to 2522 psi)
13.06 to 17.06 MPa (133.2 to 173.9 kgf/cm2, 1930 to 2522 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)
0.52 to 1.32
0.08 to 4.08 MPa (0.9 to 41.6 kgf/cm2, 11 to 603 psi)
0.08 to 4.08 MPa (0.9 to 41.6 kgf/cm2, 11 to 603 psi)
100 N (10 kgf, 22.5 lbf)
1.30 to 2.10
3.90 to 7.90 MPa (39.8 to 80.5 kgf/cm2, 576 to 1167 psi)
3.90 to 7.90 MPa (39.8 to 80.5 kgf/cm2, 576 to 1167 psi)
150 N (15 kgf, 33.7 lbf)
2.04 to 2.84
7.49 to 11.49 MPa (76.4 to 117.1 kgf/cm2, 1107 to 1698 psi)
7.49 to 11.49 MPa (76.4 to 117.1 kgf/cm2, 1107 to 1698 psi)
200 N (20 kgf, 45.0 lbf)
2.73 to 3.53
10.87 to 14.87 MPa (110.9 to 151.6 kgf/cm2, 1607 to 2198 psi)
10.87 to 14.87 MPa (110.9 to 151.6 kgf/cm2, 1607 to 2198 psi)
After inspection, turn "Power Supply Air Bleeding Pattern 1" off.
Remove the pedal effort gauge and SST.
Remove the pedal effort gauge and SST, and bleed the brake line.
Inspect the accumulator sensor.
Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Accumulator Sensor.
Chassis > ABS/VSC/TRC > Data List
Tester Display
Accumulator Sensor
Depress the brake pedal 4 or 5 times and operate the booster pump motor.
After confirming that the booster pump motor stops, check the output voltage.
Standard voltage
2.9 to 4.2 V
INSPECT BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY
Check auxiliary battery voltage.
Standard voltage
11 to 14 V (while the power switch is off)
Connect the GTS and set a pedal effort gauge.
Set a pedal effort gauge.
Connect the GTS to the DLC3 with the power switch off, park (P) selected and parking brake applied.
Turn the power switch on (IG) and turn the GTS on.
Clear the DTCs.
Check operation without the brake booster.
Inspect and adjust the brake pedal height.
for LHD:Click here
for RHD:Click here
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*a
Fluid Level Support Line
*b
MIN Line
Adjust the brake fluid level in the reservoir between the MIN line and fluid level support line.
Turn the GTS on and enter the following menus: Chassis / ABS/VSC/TRC / Utility / ECB (Electronically Controlled Brake system) Utility / Zero Down.
Chassis > ABS/VSC/TRC > Utility
Tester Display
ECB Utility
Note:Go to the next step without turning the power switch off.
Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Wheel Cylinder Pressure Sensor, Stroke Sensor and Stroke Sensor 2.
Chassis > ABS/VSC/TRC > Data List
Tester Display
Stroke Sensor
Stroke Sensor2
Wheel Cylinder Pressure Sensor
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)
0.50 to 1.30
1.11 to 1.81
3.19 to 3.89
500 N (51 kgf, 112.4 lbf)
1.04 to 1.84
1.35 to 2.05
2.95 to 3.65
Turn the power switch off to finish "Zero Down".
Turn the power switch on (IG) and wait for 20 seconds, then enter the following menus: Chassis / ABS/VSC/TRC / Data List / Accumulator Sensor, and check the output voltage.
Chassis > ABS/VSC/TRC > Data List
Tester Display
Accumulator Sensor
Standard voltage
2.9 to 4.2 V
INSPECT STROKE SIMULATOR
Check auxiliary battery voltage.
Standard voltage
11 to 14 V (while the power switch is off)
Connect the GTS and set a pedal effort gauge.
Set a pedal effort gauge.
Connect the GTS to the DLC3 with the power switch off, park (P) selected and parking brake applied.
Turn the power switch on (IG) and turn the GTS on.
Clear the DTCs.
Check operation with the brake booster.
Turn the power switch on (IG).
Enter the following menus: Chassis / ABS/VSC/TRC / Data List / Stroke Sensor and Stroke Sensor 2.
Chassis > ABS/VSC/TRC > Data List
Tester Display
Stroke Sensor
Stroke Sensor2
Depress the brake pedal 4 or 5 times.
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)
1.27 to 1.97
3.03 to 3.73
100 N (10 kgf, 22.5 lbf)
1.47 to 2.17
2.83 to 3.53
150 N (15 kgf, 33.7 lbf)
1.58 to 2.28
2.72 to 3.42