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)	-	-

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