Venza FWD V6-3.5L (2GR-FE) (2010)
Vacuum Brake Booster: Testing and Inspection
On-Vehicle Inspection
BRAKE SYSTEM (OTHER): BRAKE BOOSTER: ON-VEHICLE INSPECTION
1. INSPECT BRAKE BOOSTER ASSEMBLY
(a) Airtightness check
(1) Start the engine and stop it after 1 or 2 minutes. Slowly depress the brake pedal several times.
HINT
If the pedal can be depressed to the floor the first time, but on the 2nd and 3rd time cannot be depressed as far, the booster is airtight.
(2) Depress the brake pedal while the engine is running, and stop the engine with the pedal depressed.
HINT
If there is no change in the pedal reserve distance while holding the pedal depressed for 30 seconds, the booster is airtight.
(b) Operation check
(1) Depress the brake pedal several times with the ignition switch off and check that there is no change in the pedal reserve distance when the
pedal is depressed.
(2) Depress and hold the brake pedal, then start the engine.
HINT
If the pedal goes down slightly, operation is normal.