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General Description
WIPER AND WASHER SYSTEMS
1. General Description
A: SPECIFICATION
B: COMPONENT
1. FRONT WIPER
Fr o nt wi pe r mo t or In p ut 1 2 V — 72 W o r le ss
Rear wiper motor Input 12 V — 42 W or less
Fr o nt wa sh er mo t o rPump type Centrifugal
Input 12 V — 36 W or less
Rear washer motorPump type Centrifugal
Input 12 V — 36 W or less
(1) Wiper rubber (4) Wiper link ASSYTightening torque: N·m (kgf-m, ft-lb)
(2) Wiper blade ASSY (5) Wiper motor ASSYT1: 6.0 (0.61, 4.4)
(3) Wiper arm T2: 20 (2.0, 14.5)
WW-00351
T1
T1
T1
T2
T2
(3)
(3)
(2)
(2)(1)
(4)
(5)
(1)
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General Description
WIPER AND WASHER SYSTEMS
2. REAR WIPER
(1) Wiper rubber (4) Wiper arm coverTightening torque: N·m (kgf-m, ft-lb)
(2) Wiper blade ASSY (5) CapT1: 7.0 (0.71, 5.2)
(3) Wiper arm (6) Wiper motor ASSYT2: 8.0 (0.82, 5.9)
Page 699 of 2453
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General Description
WIPER AND WASHER SYSTEMS
3. WASHER TANK
C: CAUTION
•Connect the connectors and hoses securely during reassembly.
•After reassembly, make sure functional parts operate smoothly.
•Be careful with the airbag system wire harness which passes near electrical parts and switches.
•All airbag system wiring harness and connectors are colored yellow. Do not use a tester equipment on
these circuits.
•Care must be taken when connecting the hoses to pipes so that there are no bends or blockage.
•If even a small amount of silicon oil or grease enters tank and washer fluid passages, an oil film will be
formed on the glass and will cause the wiper to chatter and judder. Make sure that no oil comes into contact
with the system.
(1) Washer nozzle (5) Front washer motorTightening torque: N·m (kgf-m, ft-lb)
(2) Washer hose (6) Rear washer motorT: 6.0 (0.61, 4.4)
(3) Washer tank (7) Grommet
(4) Washer tank cap (8) Washer motor cover
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Wiper and Washer System
WIPER AND WASHER SYSTEMS
2. Wiper and Washer System
A: WIRING DIAGRAM
1. WIPER AND WASHER (FRONT)
2. WIPER AND WASHER (REAR)
B: INSPECTION
Symptom Repair order
Wiper and washers do not operate. 1. Wiper fuse (Front: F/B No. 30, Rear : F/B No. 23)
2. Combination switch
3. Wiper motor assembly
4. Wiring harness
5. Wiper relay unit
6. Body integrated unit (rear wiper only)
Wipers do not operate in LO or HI. 1. Combination switch
2. Wiper motor assembly
3. Wiring harness
4. Wiper relay unit
Wipers do not operate in INT. 1. Combination switch
2. Wiper motor assembly
3. Wiring harness
4. Body integrated unit (rear wiper only)
Wa sh e r mo to r do e s n ot o pe ra t e. 1 . Wa sh e r swit c h
2. Washer motor
3. Wiring harness
Wipers do not operate when washer switch is ON. 1. Wiper motor assembly
2. Wiring harness
Wa sh e r fl u id sp ray do e s n ot op e ra te pr o p er l y. 1 . Wa sh e r m ot o r
2. Washer hose and nozzle
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WW-6
Combination Switch (Wiper)
WIPER AND WASHER SYSTEMS
3. Combination Switch (Wiper)
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the driver’s airbag module.
15, REMOVAL, Driver’s Airbag Module.>
3) Remove the steering wheel.
MOVAL, Steering Wheel.>
4) Remove the screws and remove the steering
column covers (upper & lower).
5) Disconnect the connector from the combination
switch.
6) Remove the three screws, and pull out the com-
bination base switch assembly toward you.
7) Remove the screws which secure the switch,
then remove the combination switch.
B: INSTALLATION
Install in the reverse order of removal.
C: INSPECTION
1. COMBINATION SWITCH
1) Inspect the continuity between each connector
terminal.
2) If continuity is not as specified, replace the
switch.
SL-00258
LI -00332
Switch positionTerminal No.Standard
Fr o n t
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 12 Less than 1 Ω
OFF
2 and 10
2 and 12
2 and 13
10 and 12
10 and 13
12 and 13
1 MΩ or more
INT 2 and 13 Less than 1 Ω
ON 2 and 10 Less than 1 Ω
Washer ON
2 and 12
12 and 10
2 and 10
Less than 1 Ω
WW-00046
87654321917 16 15 14 13 12 11 1018
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Combination Switch (Wiper)
WIPER AND WASHER SYSTEMS
2. FRONT WIPER
1) Check with Subaru Select Monitor
2) Check the intermittent operation (inspection of
the wiper switch alone)
(1) Set the voltage meter between connector
terminal No. 7 (+) and No. 2 (–).
(2) Connect the battery between connector ter-
minal No. 7 (+) and No. 2 (–).
(3) Turn the wiper switch to INT.
(4) Connect the battery ground terminal to the
connector terminal No. 16 for five seconds.
(5) After connecting the battery ground terminal
for five seconds in step (4), connect the battery
positive terminal to the connector terminal No.
16 for five seconds.
(6) After connecting the battery ground terminal
and the battery positive terminal to the connec-
tor terminal No. 16 for five seconds each in step
(4) and (5), connect the ground terminal to the
connector terminal No. 16 again.
(7) Perform the step (1) to (6) above at MIN and
MAX position of the intermittent control switch.
If operation is not as specification, replace the
wiper switch assembly.
3) Inspect the vehicle speed response (With the
wiper switch installed on the vehicle)
(1) Operational check
Position the front wiper switch to INT, then mea-
sure the intermittent stationary time at each ve-
hicle speed.
If operation is not as specified, replace the
switch.
(2) CHECK VEHICLE SPEED SIGNAL.
Raise the vehicle speed to more than 10 km/h
(6 mph), then measure the voltage between the
wiper switch connector and the chassis ground.
Terminals
No. 15 (+) — Chassis ground (–):
Step Check Yes No
1CHECK INPUT SIGNAL TO THE BODY INTE-
GRATED UNIT.
When the front wiper switch is operated, check
the input signal using the Subaru Select Moni-
tor.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON.
3) Select {Integ. unit} from main menu.
4) Select the {Current Data Display & Save}.
5) Check the input signal when the front wiper
switch is set to LO or HI.
Is the input signal normal? Finish the diagno-
sis.
Replace the body
integrated unit.
Body Integrated
Unit.>
S: Intermittent down-
time (sec.)
(A): Connect battery ter-
minal to No. 16 in
Step (4).
Intermittent stationary time
specification
MIN: Approx. 4 seconds
MAX: Approx. 21seconds
Switch positionVe h i c l e s p e e d
(km/h (MPH))
Intermittent
stationary time
(sec.)
MIN.
0 (0) Approx. 4
30 (19) Approx. 1.5
60 (37) Approx. 1
MAX.
0 (0) Approx. 21
30 (19) Approx. 19.5
60 (37) Approx. 18
Check Yes No
Does the voltage repeat
12 V and 0 V?
Ve h i c l e s p e e d
signal is nor-
mal.
Replace the
wiper switch.
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Combination Switch (Wiper)
WIPER AND WASHER SYSTEMS
(3) CHECK THE VEHICLE SPEED SIGNAL
HARNESS.
Measure the resistance between the wiper
switch connector and the VDC control module.
Terminals
Wiper switch connector No. 15 — VDC con-
trol module No. 33:
3. REAR WIPER
1) Check with Subaru Select Monitor
Check Yes No
Is the resistance 0 Ω?Replace the
wiper switch.
Repair the har-
ness.
Step Check Yes No
1 CHECK INPUT OF REAR WIPER SWITCH.
Check the input from body integrated unit
using the Subaru Select Monitor.
1) Connect the Subaru Select Monitor to data
link connector.
2) Turn the ignition switch to ON.
3) Select {Integ. unit} from main menu.
4) Select the {Current Data Display & Save}.
5) Check the input of the rear wiper switch.
Is the input normal? Go to step 2.Check the rear
wiper switch.
to WW-6,
INSPECTION,
Combination
Switch (Wiper).>
2CHECK OUTPUT OF BODY INTEGRATED
UNIT.
When the rear wiper switch is operated, check
the output using the Subaru Select Monitor.
1) Turn the ignition switch to ON.
2) Operate the rear wiper switch and set to
each position of ON and INT.
3) At this time, check the body integrated unit
output.
When set to ON, is ON output
continuous? When set to INT,
is ON/OFF output repeated?
(INT OFF time (when vehicle
parked): 12 seconds)
Check the rear
wiper motor.
to WW-19,
INSPECTION,
Rear Wiper
Motor.>
Replace the body
integrated unit.
Body Integrated
Unit.>
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Combination Switch (Wiper)
WIPER AND WASHER SYSTEMS
2) Check rear wiper motor circuit
Step Check Yes No
1CHECK POWER SUPPLY CIRCUIT OF THE
REAR WIPER MOTOR.
1) Disconnect the harness connector of the
rear wiper motor.
2) Turn the ignition switch to ACC.
3) Measure the voltage between the rear
wiper motor harness connector terminal and
chassis ground.
Connector & terminal
(D43) No. 1 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 2.•Check the fuse
(No. 23 in fuse &
relay box).
•Check the fus-
ible link (No. 6 in
main fuse box).
2CHECK GROUND CIRCUIT OF REAR WIPER
MOTOR.
1) Turn the ignition switch to OFF.
2) Measure the resistance between the rear
wiper motor harness connector terminal and
chassis ground.
Connector & terminal
(D43) No. 3 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 3.Repair the open
circuit of the rear
wiper motor
ground circuit.
3CHECK HARNESS BETWEEN BODY INTE-
GRATED UNIT AND REAR WIPER MOTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector of body
integrated unit.
3) Disconnect the harness connector of the
rear wiper motor.
4) Measure the resistance between the har-
ness connector terminals of the body inte-
grated unit and rear wiper motor.
Connector & terminal
(B280) No. 1 — (D43) No. 2:
(B280) No. 8 — (D43) No. 4:
Is the resistance less than 10
Ω?
Go to step 4.Repair the open
circuit of the har-
ness between
body integrated
unit and rear wiper
motor.
4CHECK OPERATION OF REAR WIPER MO-
TOR.
1) Remove the rear wiper motor.
2) Check the rear wiper motor.
19, INSPECTION, Rear Wiper Motor.>
Does the rear wiper motor
rotate normally?
End. Replace the rear
wiper motor.