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FRONT WIPER AND WASHER
FROM POWER SOURCE SYSTEM (SEE PAGE 48)
* 1 : W/O DAYTIME RUNNING LIGHT
* 2 : W/ DAYTIME RUNNING LIGHT
* 3 : W/ WASHER LEVEL WARNING LIGHT
25A 10A
WIPER GAUGE
13 1G 8 1F
GR
C15
8 3A
FRONT WIPER AND WASHER SW
[COMB. SW]
B- Y
(*3)
WASHER
WASHER LEVEL WARNING LIGHT [COMB. METER]
5 3A 6 3A 7 3A
HIGH
MIST
LOW
OFF
INT
GR
GR
11 L- R
2 W- B 12 B
GR
A , C29 B
7 A
C25
(* 3)
P
WASHER MOTOR (*1), WASHER MOTOR AND
16 L- W
1 A (*1)
2 B 6 B (* 2)
WASHER LEVEL WARNING SW (* 2)
7 L- B
8 LG
M
17 GR
B
A ,
2 A (*1)
1 B 3 B (* 2)
W1
W- B
(* 3)
L- R
L- W
L- B
GR
LG
1 2 4 3 20 3E
FRONT WIPER MOTOR
M
16 3E
F5
W- B
(* 3)
W- B
A A
J4 J9
JUNCTION JUNCTION
CONNECTOR CONNECTOR
IE IF
2002 4RUNNER (EWD471U)
168
SYSTEM OUTLINE
With the ignition SW turned on, current flows to TERMINAL 17 of the front wiper and washer SW, TERMINAL 1 (w/o daytime
running light) or 2 (w/ daytime running light) of the washer motor and TERMINAL 4 of the front wiper motor through the
WIPER Fuse.
1. LOW SPEED POSITION
With the wiper SW turned to LOW position, the current flows from TERMINAL 17 of the front wiper and washer SW to
TERMINAL 7 to TERMINAL 2 of the front wiper motor to GROUND and causes to the front wiper motor to run at low speed.
2. HIGH SPEED POSITION
With the wiper SW turned to HIGH position, the current flows from TERMINAL 17 of the front wiper and washer SW to
TERMINAL 8 to TERMINAL 1 of the front wiper motor to GROUND and causes to the front wiper motor to run at high speed.
3. INT POSITION (w/ INTERMITTENT OPERATION)
With the wiper SW turned to INT position, the relay operated and the current which is connected by relay function flows from
TERMINAL 17 of the front wiper and washer SW to TERMINAL 2 to GROUND. This flow of the current operates the
intermittent circuit and the current flows from TERMINAL 17 of the front wiper and washer SW to TERMINAL 7 to TERMINAL
2 of the front wiper motor to GROUND and functions. The intermittent operation is controlled by a condenser's charged and
discharged function installed in relay.
4. MIST POSITION (w/o INTERMITTENT OPERATION)
With wiper SW turned to MIST position, the current flows TERMINAL 17 of the front wiper and washer SW to TERMINAL 7 to
TERMINAL 2 of the front wiper motor to GROUND and causes to the front wiper motor to run at low speed.
5. WASHER CONTINUITY OPERATION (w/ INTERMITTENT OPERATION)
With the washer SW turned to on, the current flows through TERMINAL 1 (w/o daytime running light) or 2 (w/ daytime
running light) of the washer motor to TERMINAL 2 (w/o daytime running light) or 1 (w/ daytime running light) to TERMINAL
11 of the front wiper and washer SW to TERMINAL 2 to GROUND and causes the washer motor to run and window washer
to spray. Simultaneously, current flows from the WIPER fuse to TERMINAL 17 of the front wiper and washer SW to
TERMINAL 7 to TERMINAL 2 of the front wiper motor to GROUND, causing the wiper to function.
6. WASHER OPERATION (w/o INTERMITTENT OPERATION)
With the washer SW turned to on, the current flows from TERMINAL 1 (w/o daytime running light) or 2 (w/ daytime running
light) of the washer motor to TERMINAL 2 (w/o daytime running light) or 1 (w/ daytime running light) to TERMINAL 11 of the
front wiper and washer SW to TERMINAL 2 to GROUND and causes the washer motor to run and the window washer to
spray, operates only while the washer SW is pressed.
SERVICE HINTS
C15 FRONT WIPER AND WASHER SW [COMB. SW]
2-GROUND : Always continuity
17-GROUND : Approx. 12 volts with ignition SW at ON position
7-GROUND : Approx. 12 volts with front wiper and washer SW at LOW position
Approx. 12 volts every approx. 1 to 10 seconds intermittently with front wiper and washer SW
at INT position
(w/ intermittent operation)
Approx. 12 volts front wiper and washer SW at MIST position (w/o intermittent operation)
16-GROUND : Approx. 12 volts with ignition SW on unless front wiper motor at STOP position
8-GROUND : Approx. 12 volts with ignition SW on and front wiper and washer SW at HIGH position
F5 FRONT WIPER MOTOR
3-4 : Closed unless front wiper motor at STOP position
: PARTS LOCATION
Code See Page Code See Page Code See Page
C15 30 F5 28 A 29
W1
C25 A 30 J4 31 B 29
C29 B 30 J9 31
2002 4RUNNER (EWD471U)
169
FRONT WIPER AND WASHER
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
1F
24 Cowl Wire and Driver Side J/B (Lower Finish Panel)
1G
3A
26 Cowl Wire and Center J/B (Near the Steering Column Tube)
3E
: GROUND POINTS
Code See Page Ground Points Location
IE 38 Cowl Side Panel LH
IF 38 Cowl Side Panel RH
2002 4RUNNER (EWD471U)
170
MEMO
2002 4RUNNER (EWD471U)
171
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