Toyota Sienna Service Manual: On-vehicle inspection
1. CONNECT INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine and run at idle.
(c) Select the ACTIVE TEST mode on the intelligent tester.
HINT: Please refer to the intelligent tester operator's manual for further details.
2. INSPECT ACTUATOR MOTOR OPERATION
(a) With the motor relay on, check the actuator motor operation noise.
(b) Turn the motor relay off.
(c) Depress the brake pedal and hold it for approximately 15 seconds. Check that the brake pedal cannot be depressed.
(d) With the motor relay on, check that the pedal does not pulsate.
NOTICE: Do not keep the motor relay turned on for more than 5 seconds continuously. When operating it continuously, set an interval of more than 20 seconds.
(e) Turn the motor relay off and release the brake pedal.
3. INSPECT RIGHT FRONT WHEEL OPERATION
NOTICE: Never turn on the solenoids in a manner different to those described below
(a) With the brake pedal depressed, perform the following operations.
(b) Turn the SFRH and SFRR solenoids on simultaneously, and check that the pedal cannot be depressed.
NOTICE: Do not keep the solenoid turned on for more than 10 seconds continuously. When operating it continuously, set an interval of more than 20 seconds.
(c) Turn the SFRH and SFRR solenoids off simultaneously, and check that the pedal can be depressed.
(d) Turn the motor relay on, and check that the pedal returns.
NOTICE: Do not keep the motor relay turned on for more than 5 seconds continuously. When operating it continuously, set an interval of more than 20 seconds.
(e) Turn the motor relay off and release the brake pedal.
4. INSPECT OTHER WHEEL OPERATION
(a) Using the same procedure, check the solenoids of the other wheels.
HINT: Left front wheel: SFLH, SFLR Right rear wheel: SRRH, SRRR Left rear wheel: SRLH, SRLR
Brake actuator (w/o vsc)
COMPONENTS
...
Removal
1. DRAIN BRAKE FLUID
NOTICE:
Wash brake fluid off immediately if it adheres to any
painted surface.
2. DISCONNECT BATTERY NEGATIVE TERMINAL
3. REMOVE AIR CLEANER ASSEMBLY WITH HOSE
4. REMOVE BRA ...
Other materials:
Occupant Classification System Malfunction
DTC B1150/23 Occupant Classification System Malfunction
DESCRIPTION
The occupant classification system circuit consists of the center airbag
sensor assembly and the occupant
classification ECU.
If the center airbag sensor assembly receives signals from the occupant
classification ECU, it d ...
Pressure Control Solenoid "D" Performance (Shift
Solenoid Valve SLT)
SYSTEM DESCRIPTION
The linear solenoid valve (SLT) controls the transmission line pressure for
smooth transmission operation
based on signals from the throttle position sensor and the vehicle speed sensor.
The ECM adjusts the
duty ratio (*) of the SLT solenoid valve to control hydraulic line ...
Speed sensor check (when using intelligent tester)
(a) Check the backward signal.
(1) Drive the vehicle in reverse for more than 1
second at 3 km/h (2 mph) or higher.
HINT:
Drive the vehicle in reverse and check the speed
sensor signal. Note that the signal check cannot
be completed if the vehicle speed is 45 km/h (28
mph) or more.
(b) Che ...