4 Runner 2WD V6-4.0L (1GR-FE) (2006)
Brake Master Cylinder: Testing and Inspection
W/ MASTER CYLINDER BRAKE BOOSTER ASSEMBLY
ON-VEHICLE INSPECTION
1. CHECK BRAKE MASTER CYLINDER FLUID PRESSURE CHANGE
a. Inspect the battery voltage.
Battery voltage: 11 to 14 V
b. Turn the ignition switch off and depress the brake pedal more than 40 times.
HINT: When pressure in the power supply system is released, reaction force becomes light and stroke becomes longer.
c. Install the LSPV gauge (SST) and brake pedal effort gauge, and bleed air.
SST 09709-29018
d. When the booster does not operate:
Depress the brake pedal and check fluid pressure.
At 245 N (25 kgf, 55 lbs.)
At 343 N (35 kgf, 77 lbs.)
e. When the booster operates:
Depress the brake pedal and check fluid pressure.
1
Turn the ignition switch to the ON position and wait until the pump motor has stopped.
2
Depress the brake pedal and check fluid pressure.
At 49 N (5 kgf, 11 lbs.)