
66-5
WIPER & WASHER - WIPER AND WASHER SYSTEM
660CB-02
INSPECTION
1. WINDSHIELD WIPER SWITCH ASSY
(a) Continuity Check
(1) Check the continuity between each of the terminals
of the connector.
Standard:
Front Wiper Switch
Switch position Tester connection Specified condition
MIST 7 (+1) - 17 (+B) Continuity
E65758
7 (+1) - 16 (+S),
OFF No continuity
7 (+1) - 17 (+B)
INT 7 (+1) - 16 (+S) Continuity
LO 7 (+1) - 17 (+B) Continuity
HI 8 (+2) - 17 (+B) Continuity
Front Washer Switch
Switch position Tester connection Specified condition
OFF 2 (EW) - 11 (WF) No continuity
ON 2 (EW) - 11 (WF) Continuity
Rear Wiper Switch
Switch position Tester connection Specified condition
2 (EW) - 13 (C1R),
OFF No continuity
2 (EW) - 10 (+1R)
INT 2 (EW) - 13 (C1R) Continuity
ON 2 (EW) - 10 (+1R) Continuity
Rear Washer Switch
Switch position Tester connection Specified condition
OFF 2 (EW) - 12 (WR) No continuity
ON
(Rear wiper switch OFF 2 (EW) - 12 (WR) Continuity
side)
ON
2 (EW) - 12 (WR),
(Rear wiper switch ON Continuity
2 (EW) - 10 (+1R)
side)
(b) Intermittent Operation Check
(1) Connect the voltmeter (+) terminal to the terminal 7
(+1) of the connector, the voltmeter (-) terminal to
the terminal 2 (EW) of the connector.
(2) Connect the battery (+) to the terminal 7 (+B) of the
connector, the battery (-) to the terminal 2 (EW) and
the terminal 6 (+S) of the connector.
(3) Turn the wiper switch into the INT position.
(4) Connect the battery (+) to the terminal 16 (+S) of the
connector for 5 seconds.
2005 SIENNA REPAIR MANUAL (RM1163U)
Author : Date : 3112
66-6
WIPER & WASHER - WIPER AND WASHER SYSTEM
(5) 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).
FAST: Connect the battery (-) SLOW: Connect the battery (-)
to the terminal 16 (+S) to the terminal 16 (+S)
7 (+1) - 2 (EW)
Voltage between terminals
1.6