Toyota Sienna Service Manual: On-vehicle inspection
1. INSPECT BRAKE BOOSTER
(a) Air tightness check.
(1) Start the engine and stop it after 1 or 2 minutes.
Depress the brake pedal several times slowly.
HINT: If the pedal goes down farthest at the 1st time, and gradually rises at the 2nd or 3rd time, 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 after holding the pedal for 30 seconds, the booster is airtight.
(b) Operating 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.
(2) Depress the brake pedal and start the engine.
HINT: If the pedal goes down slightly, the operation is normal.
Brake booster
COMPONENTS
...
Removal
NOTICE:
Do not adjust the brake booster push rod.
Do not change the combination of the diameter
converting unit and brake.
1. REMOVE FRONT WHEEL
2. DRAIN BRAKE FLUID
NOTICE:
Wash the bra ...
Other materials:
Installation
1. INSTALL ACCELERATOR PEDAL ROD
NOTICE:
Avoid physical shock to the accelerator pedal
assembly.
Do not disassemble the accelerator pedal
assembly.
Install the accelerator pedal rod with the 2 nuts.
Torque: 4.9 N*m (50 kgf*cm, 43 in.*lbf)
Connect the ...
Test mode procedure
1. SPEED SENSOR SIGNAL CHECK (WHEN USING SST CHECK WIRE):
HINT:
If the ignition switch is turned from the ON to the ACC
or LOCK position during Test Mode, the DTCs of the
signal check function will be erased.
(a) Turn the ignition switch off.
(b) Check that the steering wheel is in th ...
Sensor signal check by test mode (signal check) (when using intelligent
tester)
(a) When having replaced the skid control ECU and/or
yaw rate and deceleration sensor, perform zero
point calibration of the yaw rate and deceleration
sensor.
HINT:
If the ignition switch is turned from the ON
position to the ACC or off during test mode
(signal check), DTCs of the signal ...
