Toyota Sienna Service Manual: On-vehicle inspection
1. INSPECT THROTTLE BODY
(a) Listen to the throttle control motor operating sounds.
(1) Turn the ignition switch to the ON position.
(2) When pressing the accelerator pedal position sensor lever, listen to the running motor. Make sure that no friction noise comes from the motor.
If friction noise exists, replace the throttle body.
(b) Inspect the throttle position sensor.
(1) Connect the intelligent tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Check that the MIL turns off.
(4) Under CURRENT DATA, the throttle valve opening percentage (THROTTLE POS) should be within the standard range below.
Standard throttle valve opening percentage: 60% or more If the percentage is less than 60%, replace the throttle body.
| NOTICE: When checking the throttle valve opening percentage, the transmission should be in neutral. |
Throttle body
COMPONENTS
...
Removal
1. Remove windshield wiper motor assembly
hint:
(see page ww-4)
2. Remove front outer cowl top panel subassembly
(see page em-27)
3. Drain engine coolant (see page co-6)
4. Remove v-bank cover s ...
Other materials:
Drive shaft
SST
RECOMMENDED TOOLS
HINT:
Torx is a registered trademark of Textron Inc.
EQUIPMENT
LUBRICANT
...
Unlocking and locking the doors from the outside
Entry function (vehicles with a smart key system)
Carry the electronic key to enable this function.
Grip the driver’s door handle
to unlock the door. Grip the
passenger’s door handle to
unlock all the doors.*
Make sure to touch the sensor
on the back of the handle.
The doors ...
Torque Converter Clutch Solenoid Performance
(Shift Solenoid Valve DSL)
SYSTEM DESCRIPTION
The ECM uses the signals from the throttle position sensor, air-flow meter,
turbine (input) speed sensor,
intermediate (counter) shaft speed sensor and crankshaft position sensor to
monitor the engagement
condition of the lock-up clutch.
Then the ECM compares the eng ...
