Toyota Sienna Service Manual: Wiper switch
COMPONENTS

REMOVAL
1. REMOVE STEERING COLUMN COVER
2. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY

- Disconnect the connector.
- Using a screwdriver, disengage the claw and pull
out the windshield wiper switch assembly.
NOTICE:
The claw will be broken if pressed hard.
HINT:
Tape up the screwdriver tip before use.
INSPECTION
1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

- Continuity Check
- Check the continuity between each of the
terminals of the connector.
Standard:
Front Wiper Switch

Front Washer Switch

Rear Wiper Switch

Rear Washer Switch

- Intermittent Operation Check
- Connect the voltmeter (+) terminal to the
terminal 7 (+1) of the connector, the voltmeter
(-) terminal to the terminal 2 (EW) of the
connector.
- Connect the battery (+) to the terminal 17 (+B)
of the connector, the battery (-) to the terminal 2
(EW) and the terminal 16 (+S) of the connector.
- Turn the wiper switch into the INT position.
- Connect the battery (+) to the terminal 16 (+S)
of the connector for 5 seconds.
- Connect the battery (-) to the terminal 16 (+S)
of the connector. Operate the intermittent wiper
relay and check voltage between the terminal 7
(+1) and the terminal 2 (EW).

- Operation Check (Front Wiper)
- Turn the wiper switch into the OFF position.
- Connect the battery (+) to the terminal 17 (+B)
of the connector, the battery (-) to the terminal
16 (+S) and 2 (EW) of the connector.
- Connect the voltmeter (+) terminal to the
terminal 7 (+1) of the connector, the voltmeter
(-) terminal to the terminal 2 (EW) of the
connector. Turn the washer switch ON and
OFF and check voltage between the terminal 7
(+1) and the terminal 2 (EW).

INSTALLATION
1. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY
2. REMOVE STEERING COLUMN COVER
COMPONENTS
REMOVAL
1. REMOVE REAR WIPER BLADE ASSEMBLY
Remove the rear wiper arm head cap from the rear
wiper arm.
Raise the rear wiper blade to the position as shown
i ...
ON-VEHICLE INSPECTION
1. INSPECT FRONT WASHER MOTOR
Operation Check
Pour the water into the washer jar with the
windshield washer motor and pump installed to
the washer ...
Other materials:
Seat Position Airbag Sensor Circuit Malfunction
DTC B1153/25 Seat Position Airbag Sensor Circuit Malfunction
DESCRIPTION
The seat position airbag sensor circuit consists of the center airbag sensor
assembly and the seat
position airbag sensor.
DTC B1153/25 is recorded when a malfunction is detected in the seat position
airbag sensor cir ...
Camshaft Position "B" Actuator Circuit / Open
DTC P0013 Camshaft Position "B" Actuator Circuit / Open
(Bank 1)
DTC P0023 Camshaft Position "B" Actuator Circuit / Open
(Bank 2)
DESCRIPTION
The Variable Valve Timing (VVT) system includes the ECM, OCV and VVT
controller. The ECM sends a
target duty-cycle control signal ...
Front Airbag Sensor RH Circuit Malfunction
DTC B1148/36 Front Airbag Sensor RH Circuit Malfunction
DESCRIPTION
The front airbag sensor RH circuit consists of the center airbag sensor
assembly and front airbag sensor
RH. If the center airbag sensor assembly receives signals from the front airbag
sensor RH, it judges
whether or not the ...