Subaru Legacy III (2000-2003 year). Manual - part 927

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WIPER AND WASHER SYSTEMS

GENERAL DESCRIPTION

C: CAUTION

• Reconnect connectors and hoses securely.
After reconnecting, confirm that each function oper-
ates normally.
• Be careful that wire harnesses of airbag system
pass near electrical parts and switches.
• Wire harnesses and connectors of all airbag sys-
tem are yellow color. Do not use a tester on these
circuits.
• Care must be taken when installing the piping
hose so that no bending, jamming, etc. are caused.
• If even a little oil or grease such as silicon oil gets
in the tank and washer passages, an oil film easily
forms on the glass, causing the wiper to chatter and
judder. Therefore, be careful not to let this happen.

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WIPER AND WASHER SYSTEMS

WIPER AND WASHER SYSTEM

2. Wiper and Washer System

A: SCHEMATIC

1. WIPER AND WASHER (FRONT) LHD MODEL

<Ref. to WI-324, LHD MODEL, SCHEMATIC, Wiper and Washer System (Front).>

2. WIPER AND WASHER (FRONT) RHD MODEL

<Ref. to WI-325, RHD MODEL, SCHEMATIC, Wiper and Washer System (Front).>

3. WIPER AND WASHER (REAR) LHD MODEL

<Ref. to WI-326, LHD MODEL, SCHEMATIC, Wiper and Washer System (Rear).>

4. WIPER AND WASHER (REAR) RHD MODEL

<Ref. to WI-327, RHD MODEL, SCHEMATIC, Wiper and Washer System (Rear).>

B: INSPECTION

Symptom

Repair order

Wiper and washers do not operate.

(1) Wiper fuse (F/B No. 14, 15)
(2) Combination switch
(3) Wiper motor
(4) Wire harness

Wipers do not operate in LO or HI.

(1) Combination switch
(2) Wiper motor
(3) Wire harness

Wipers do not operate in INT.

(1) Combination switch
(2) Wiper motor
(3) Wire harness

Washer motor does not operate.

(1) Washer switch
(2) Washer motor
(3) Wire harness

Wipers do not operate when washer switch is ON.

(1) Washer motor
(2) Wire harness

Washer fluid spray does not operate.

(1) Washer motor
(2) Washer hose and nozzle

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WIPER AND WASHER SYSTEMS

COMBINATION SWITCH (WIPER)

3. Combination Switch (Wiper)

A: REMOVAL

1) Loosen screw to remove a steering column cov-
er.

2) Disconnect connectors from combination
switches.
3) Loosen screw to remove combination switch.

B: INSTALLATION

Install in the reverse order of removal.

C: INSPECTION

• Inspect the continuity between each connector
terminal.

LHD model and RHD model with rear fog light:

If continuity is not as specified, replace the switch.

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Switch position

Terminal No.

Standard

FRONT

OFF

7 and 16

Less than 1 

Ω

INT

7 and 16

Less than 1 

Ω

LO

7 and 17

Less than 1 

Ω

HI

8 and 17

Less than 1 

Ω

Washer ON

2 and 11

Less than 1 

Ω

REAR

Washer ON

2 and 10

10 and 12

2 and 12

Less than 1 

Ω

OFF

—

More than 1 

M

Ω

ON

2 and 10

Less than 1 

Ω

Washer ON

2 and 10

10 and 12

2 and 12

Less than 1 

Ω

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1

10

2

11

3

12

4

13

5

14

6

15

7

16

8

17

9

18

L O

L O

H I

H I

O F

F

O F

F

K i :

K i :

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WIPER AND WASHER SYSTEMS

COMBINATION SWITCH (WIPER)

RHD model without rear fog light:

If continuity is not as specified, replace the switch.
• Intermittent operation inspection
1) Turn the wiper switch to INT.
2) Adjust the intermittent control switch to MAX.
3) Apply battery voltage to switch terminals 16 and 2, and inspect the voltage of terminals 7 and 2.  (Measure
the voltage from after the second time the wiper stops.)

If operation is not as specified, replace the switch.

Switch position

Terminal No.

Standard

FRONT

OFF

3 and 12

Less than 1 

Ω

INT

3 and 12

Less than 1 

Ω

LO

3 and 11

Less than 1 

Ω

HI

2 and 11

Less than 1 

Ω

Washer ON

8 and 17

Less than 1 

Ω

REAR

Washer ON

8 and 16

16 and 18

8 and 18

Less than 1 

Ω

OFF

—

More than 1 

M

Ω

ON

8 and 18

Less than 1 

Ω

Washer ON

8 and 16

16 and 18

8 and 18

Less than 1 

Ω

(A) Switch position

(E) Non-variable

(I) 16 ± 6 sec.

(B) Voltage

(F) 12 V

(J) 3 ± 1 sec.

(C) MIN.

(G) 0 V

(D) MAX.

(H) Approx. 2 sec.

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(A)

(B)

(C)

(H)

(I)

(J)

(D)

(F)

(G)

(F)

(G)

(F)

(G)

(E)