RAV4 4WD L4-2.5L (2AR-FE) (2009)
Vacuum Brake Booster: Testing and Inspection
BRAKE: BRAKE BOOSTER: ON-VEHICLE INSPECTION
ON-VEHICLE INSPECTION
1. CHECK BRAKE BOOSTER ASSEMBLY
(a) Check the airtightness.
(1) Start the engine and stop it after 1 or 2 minutes. Slowly depress the brake pedal several times.
(2) Make sure the booster is airtight. Check that the distance the pedal can be depressed decreases gradually in correlation with each
subsequent press of the pedal.
If the pedal is not as specified, check the check valve.
If the check valve is normal, replace the booster.
(3) Start the engine. Depress and hold down the pedal, and stop the engine.
(4) Make sure the booster is airtight. Hold the pedal for 30 seconds and check that there is no change in the pedal reserve distance.
If the pedal is not as specified, check the check valve.
If the check valve is normal, replace the booster.
(b) Check the operation.
(1) Stop the engine.
(2) Depress the pedal several times and check that there is no change in the pedal reserve distance.
(3) Depress and hold down the pedal, and start the engine. Check that the pedal can only be depressed slightly.
If the pedal is not as specified, check the check valve.
If the check valve is normal, replace the booster.