Toyota Yaris: Brake Booster / On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
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 brake pedal can be depressed nearly to the floor the first time, but on the 2nd and 3rd time cannot be depressed as far, the brake booster assembly is airtight. |
| | *a | Correct | | *b | Incorrect | | *c | 1st | | *d | 2nd | | *e | 3rd | | |
(2) Depress the brake pedal with the engine running, and stop the engine with the brake pedal depressed.
HINT:
If there is no change in the brake pedal reserve distance while holding the brake pedal depressed for 30 seconds, the brake booster assembly 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 brake pedal reserve distance when the brake pedal is depressed. | |
| (2) Depress and hold the brake pedal, then start the engine. HINT: If the brake pedal goes down slightly, operation is normal. | |
DISASSEMBLY PROCEDURE 1. REMOVE BRAKE VACUUM CHECK VALVE ASSEMBLY (a) Remove the brake vacuum check valve assembly from the brake booster assembly. (b) Remove the check valve grommet from the brake booster assembly...
Other information:
PARTS LOCATION ILLUSTRATION
*A w/ Toyota Safety Sense *B w/ Active Noise Control System *1 ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) *2 VACUUM SENSOR ASSEMBLY *3 INNER REAR VIEW MIRROR ASSEMBLY *4 ECM *5 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) *6 EXTERNAL BACKUP BOOST CONVERTER (ECO RUN VEHICLE CONVERTER ASSEMBLY) *7 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *8 FORWARD RECOGNITION CAMERA *9 ENGINE ROOM RELAY BLOCK - EFI-MAIN NO...
COMPONENTS ILLUSTRATION
*1 FRONT BUMPER ASSEMBLY *2 PIN HOLD CLIP ILLUSTRATION
*A w/ Pre-collision System - - *1 NO. 3 ENGINE ROOM WIRE *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY
N*m (kgf*cm, ft.*lbf): Specified torque - - ILLUSTRATION
*1 FOG LIGHT COVER LH *2 FOG LIGHT COVER RH *3 FOG LIGHT ASSEMBLY LH *4 FOG LIGHT ASSEMBLY RH *5 FRONT BUMPER HOLE COVER *6 HOOD TO FRONT END PANEL SEAL *7 LOWER RADIATOR GRILLE SUB-ASSEMBLY *8 RADIATOR GRILLE SIDE MOULDING LH *9 RADIATOR GRILLE SIDE MOULDING RH *10 RADIATOR GRILLE EMBLEM ASSEMBLY *11 FRONT BUMPER EXTENSION MOUNTING BRACKET - - ILLUSTRATION
*1 FRONT BUMPER ENERGY ABSORBER *2 FRONT BUMPER SIDE RETAINER RH *3 RADIATOR UPPER AIR GUIDE PLATE *4 HEADLIGHT ASSEMBLY RH *5 HEADLIGHT ASSEMBLY LH *6 FRONT BUMPER SIDE RETAINER LH *7 FRONT BUMPER REINFORCEMENT *8 THERMISTOR ASSEMBLY *9 COOL AIR INTAKE DUCT - -
N*m (kgf*cm, ft...
Categories
If a key is left in the vehicle, the functions of the key left in the vehicle
are temporarily suspended to prevent theft of the vehicle.
To restore the functions, press the unlock button on the functions-suspended
key in the vehicle.
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