Toyota Sienna Service Manual: On-vehicle inspection
1. INSPECT THROTTLE BODY
- Listen to the throttle control motor operating sounds.
- Turn the ignition switch to the ON position.
- 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.
- Inspect the throttle position sensor.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Check that the MIL turns off.
- 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.
Components
...
Removal
1. REMOVE WINDSHIELD WIPER MOTOR ASSEMBLY
2. REMOVE FRONT OUTER COWL TOP PANEL SUBASSEMBLY
3. DRAIN ENGINE COOLANT
4. REMOVE V-BANK COVER SUB-ASSEMBLY
5. REMOVE NO. 2 AIR CLEANER INLET
6. REMOVE ...
Other materials:
Disassembly
1. REMOVE PROPELLER SHAFT ASSEMBLY
(a) Put matchmarks on both the flanges.
(b) Remove the 4 nuts, bolts and washers.
2. REMOVE INTERMEDIATE SHAFT
(a) Put matchmarks on the propeller shaft subassembly
and universal joint flange.
NOTICE:
Do not use a punch for the marks.
(b) Using a ...
Installation
1. INSTALL REAR COIL SPRING INSULATOR UPPER LH
(a) Install the insulator upper LH to the coil spring rear
LH.
2. INSTALL COIL SPRING REAR LH
(a) Apply a shop rug to the rear axle beam assembly.
(b) Install the coil spring rear LH to the rear axle beam
assembly.
HINT:
Fit the lowe ...
Air fuel ratio sensor relay
INSPECTION
1. INSPECT AIR FUEL RATIO SENSOR RELAY
Using an ohmmeter, measure the resistance
according to the value(s) in the table below.
Standard resistance
If the result is not as specified, replace the relay. ...