Toyota Venza: Inspection

Toyota Venza Service Manual / Wiper / Washer / Wiper Switch / 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
D40-1 (+S) - D40-3 (+1)	INT
D40-2 (+B) - D40-3 (+1)	MIST
D40-2 (+B) - D40-3 (+1)	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
D39-2 (EW) - D39-3 (WF)	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)	OFF	10 kΩ or higher
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)	OFF	10 kΩ or higher
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)	ON + WASH	Below 1 Ω

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)	-	-

Removal

REMOVAL PROCEDURE 1. REMOVE FRONT DOOR SCUFF PLATE LH 2. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH 3. REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL 4. REMOVE LOWER STEERING COLUMN COVER ...

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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