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:
Rear evaporator temperature sensor circuit
DESCRIPTION
The rear evaporator temperature sensor is installed on the rear evaporator.
It detects the rear evaporator
temperature. The sensor sends a signal to the A/C amplifier. The resistance of
the rear evaporator
temperature sensor changes in accordance with the rear evaporator temperatu ...
Short in CAN Bus Lines
DESCRIPTION
The CAN bus wires are considered to be shorted when the resistance between
terminals 6 (CANH) and
14 (CANL) of the DLC3 is below 54 Ω.
Symptom
Trouble Area
Resistance between terminals 6 (CANH) and 14 (CANL) of the DLC3
is below 54 Ω.
...
Push Switch / Key Unlock Warning Switch Malfunction
DTC B2780 Push Switch / Key Unlock Warning Switch Malfunction
DESCRIPTION
This DTC will be output if the transponder key ECU does not detect that the
unlock warning switch is on
even when the ignition switch is on (Under the normal conditions, the unlock
warning switch is on when
the ignitio ...