Toyota Sienna Service Manual: Inspection
1. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY

- LO Operation Check
- Connect the battery (+) to the terminal 1 (+1) of
the connector, the battery (-) to the terminal 5
(E) of the connector, and check that the motor
operates at low speed (LO).
- HI Operation Check
- Connect the battery (+) to the terminal 4 (+2) of
the connector, the battery (-) to the terminal 5
(E) of the connector, and check that the motor
operates at high speed (HI).
- Automatic Stop Operation Check
- Connect the battery (+) to the terminal 1 (+1) of
the connector, the battery (-) to the terminal 5
(E) of the connector. With the motor being
rotated at low speed (LO), disconnect terminal
1 (+1) to stop the wiper motor operation at any
position except the automatic stop position.
- Using SST, connect the terminal 1 (+1) and 3
(S), and the battery (+) to the terminal 2 (B) to
restart the motor operation at low speed (LO).
SST 09843-18040
- Check the automatic stop position.
Standard:
See the illustration.

1. REMOVE FRONT WIPER ARM HEAD CAP
Using a small screwdriver, remove the 2 front wiper
arm covers.
HINT:
Tape up the screwdriver tip before use.
2. REMOVE FR WIPER ARM RH
&nbs ...
1. INSTALL WINDSHIELD WIPER MOTOR ASSEMBLY
Apply MP grease to the crank arm pivot of the
windshield wiper motor assembly.
Install the windshield wiper motor assembly with the
...
Other materials:
Selecting conventional constant speed control mode
Constant speed control mode differs from vehicle-to-vehicle distance
control mode. When constant speed control mode is selected, your
vehicle will maintain a set speed regardless of whether or not there
are other vehicles in the lane ahead.
Press the “ON-OFF” button to
activate the ...
Removal
1. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
2. DRAIN ENGINE COOLANT
3. REMOVE FRONT WIPER ARM HEAD CAP (See page
WW-4)
4. REMOVE FRONT WIPER ARM RH (See page WW-4)
5. REMOVE FRONT WIPER ARM LH (See page WW-4)
6. REMOVE COWL TOP VENTILATOR LOUVER SUBASSEMBLY
(See page WW-4)
7. REMOVE ...
Inspection
1. INSPECT FRONT DIFFERENTIAL
(a) Using a dial indicator, measure the backlash of one
pinion gear while holding the front differential side
gear toward the case.
Standard backlash:
0.05 - 0.20 mm (0.0020 - 0.0079 in.)
NOTICE:
Do not mount the surface of front differential
case which cont ...