Toyota Venza manuals

Toyota Venza: Inspection

INSPECTION

PROCEDURE

1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Front Wiper Switch

Tester Connection

Switch Condition

Specified Condition

D40-1 (+S) - D40-3 (+1)

OFF

Below 1 Ω

INT

D40-2 (+B) - D40-3 (+1)

MIST

LO

D40-2 (+B) - D40-4 (+2)

HI

Front Washer Switch

Tester Connection

Switch Condition

Specified Condition

D39-2 (EW) - D39-3 (WF)

ON

Below 1 Ω

OFF

10 kΩ or higher

Rear Wiper Switch

Tester Connection

Switch Condition

Specified Condition

D39-6 (C1R) - D39-2 (EW)

OFF

10 kΩ or higher

D39-7 (+1R) - D39-2 (EW)

D39-6 (C1R) - D39-2 (EW)

INT

Below 1 Ω

D39-7 (+1R) - D39-2 (EW)

HI

Below 1 Ω

Rear Washer Switch

Tester Connection

Switch Condition

Specified Condition

D40-5 (WR) - D39-2 (EW)

OFF

10 kΩ or higher

D39-7 (+1R) - D39-2 (EW)

D40-5 (WR) - D39-2 (EW)

WASH

Below 1 Ω

D40-5 (WR) - D39-2 (EW)

ON + WASH

Below 1 Ω

D39-7 (+1R) - D39-2 (EW)

If the result is not as specified, replace the windshield wiper switch assembly.

Text in Illustration

*1

Component without harness connected

(Windshield Wiper Switch Assembly)


(b) Check the intermittent operation.

(1) Connect a voltmeter positive (+) lead to terminal D40-3 (+1) and a negative (-) lead to terminal D39-2 (EW).

(2) Connect a battery positive (+) lead to terminal D40-2 (+B) and a negative (-) lead to terminal D39-2 (EW) and D40-1 (+S).

(3) Turn the wiper switch to the INT position.

(4) Connect a battery positive (+) lead to terminal D40-1 (+S) for 5 seconds.

(5) Connect a battery negative (-) lead to terminal D40-1 (+S). Operate the intermittent wiper relay and check the voltage between terminals D40-3 (+1) and D39-2 (EW).

OK:

Voltage changes as shown in the illustration.


If the result is not as specified, replace the windshield wiper switch assembly.

Text in Illustration

*1

Voltage between terminals D40-3 (+1) and D39-2 (EW)

*2

FAST: Connect battery negative lead to terminal D40-1 (+S)

*3

SLOW: Connect battery negative lead to terminal D40-1 (+S)

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Removal
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Installation
INSTALLATION PROCEDURE 1. INSTALL WINDSHIELD WIPER SWITCH ASSEMBLY (a) Engage the claw to install the windshield wiper switch assembly as shown in the illustration. ...

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