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:
Removal
HINT:
Remove the RH side by the same procedure as the LH side.
1. REMOVE FRONT WHEEL
2. DRAIN BRAKE FLUID
NOTICE:
Wash the brake fluid off immediately if it attaches to
any painted surface.
3. REMOVE FRONT DISC BRAKE CYLINDER SUBASSEMBLY
(a) Remove the union bolt and 2 gaskets from the f ...
Initialization
1. RESET MEMORY
NOTICE:
Perform the RESET MEMORY (AT initialization)
when replacing the automatic transaxle assembly,
engine assembly or ECM.
The RESET MEMORY can be performed only with
the Intelligent tester.
HINT:
The ECM memorizes the condition that the ...
Installation
1. REMOVE FRONT SEAT INNER BELT ASSEMBLY
HINT:
Refer to the instructions for reassembly of the front seat assembly
(for flat type).
Refer to the instructions for reassembly of the front seat assembly
(for manual seat).
Refer to the instructions for reassembly of the ...
