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
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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:
How to proceed with troubleshooting
Hint:
The ecm of this system is connected to the can and
multiplex communication system. Therefore, before
starting troubleshooting, make sure to check that there is
no trouble in the can and multiplex communication
systems
The intelligent tester can be used at steps 3, 4, 6, and 9.
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How to scroll
: Select to scroll to the next
or previous page.
: If
appears to the right of
titles, the complete titles are
too long for the display. Select
this button to scroll the title.
Turn the “TUNE•SCROLL” knob
to move the cursor box to select a
desired item from the list, and
press ...
Reassembly
1. INSTALL FRONT OIL PUMP OIL SEAL
(a) Using SST and a hammer, install a new oil seal to
the oil pump body.
SST 09350-32014 (09351-32140)
HINT:
The seal end should be flat with the outer edge of
the oil pump.
(b) Coat the lip of the oil seal with MP grease.
2. INSTALL FRONT OIL PUMP BODY ...
