Subaru Outback (BR): Wiper and Washer System
A: WIRING DIAGRAM
1. WIPER AND WASHER (FRONT)
Refer to "Front Wiper and Washer System" in the wiring diagram. <Ref. to
WI-169, WIRING DIAGRAM, Front
Wiper and Washer System.>
2. WIPER AND WASHER (REAR)
Refer to "Rear Wiper and Washer System" in the wiring diagram. <Ref. to
WI-219, WIRING DIAGRAM, Rear
Wiper and Washer System.>
B: INSPECTION
C: NOTE
For procedure of each component of the wiper and washer system, refer to the
respective sections.
- Combination switch (wiper): <Ref. to WW-9, Combination Switch (Wiper).>
- Wiper blade: <Ref. to WW-16, Wiper Blade.>
- Washer tank and motor: <Ref. to WW-19, Washer Tank and Motor.>
- Front wiper arm: <Ref. to WW-24, Front Wiper Arm.>
- Front wiper motor and link: <Ref. to WW-25, Front Wiper Motor and Link.>
- Front washer nozzle: <Ref. to WW-31, Front Washer Nozzle.>
- Rear wiper arm: <Ref. to WW-36, Rear Wiper Arm.>
- Rear wiper motor: <Ref. to WW-38, Rear Wiper Motor.>
- Rear washer nozzle: <Ref. to WW-43, Rear Washer.>
Combination Switch (Wiper)
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the steering column cover.
- Remove the screws by turning the steering wheel to right and left.
- Release the claws and remove the steering column lower cover.
- Separate the steering column upper cover and steering upper cover, and
remove the steering column
upper cover.
3) Remove the wiper switch assembly.
- Disconnect the connector from wiper switch.
- Release the claws, and pull out the wiper switch assembly.
CAUTION:
Do not press the claws with excessive force. They may be damaged.
B: INSTALLATION
Install each part in the reverse order of removal.
C: INSPECTION
1. INSPECTION OF SWITCH UNIT
1) Operate the switches to check the continuity between terminals.
2) Replace the switch if the inspection result is not within the standard
value.
2. FRONT WIPER
1) Check with Subaru Select Monitor
- Check the input signal when the front wiper switch is turned to LO or
HI, using the current data display
of body integrated unit.
- Does the input signal change corresponding to the switch operation?
- Yes → Finish the diagnosis.
- No →
- Check the harness.
- Check the input voltage of body integrated unit.
Connector & terminal
(B280) No. 2 (+) - Chassis ground (-):
- Replace the body integrated unit. <Ref. to SL-71, Body
Integrated Unit.>
2) Check the intermittent operation (inspection of the wiper switch alone)
- Set the voltage meter between terminal No. 4 (+) and No. 3 (-).
- Connect the battery to connector. (Terminal No. 4 (+), terminal No. 2 &
3 (-) )
- Turn the front wiper switch to INT.
- Connect the battery (+) to the terminal No. 4 for 5 seconds.
- Connect the battery (-) to the terminal No. 2 and check the voltage
between terminal No. 4 - terminal
No. 3 during intermittent operation.
- Perform step (1) to (5) above when intermittent control switch is in MIN
or MAX, and replace the switch
if the operation is not as specified.
Intermittent stationary time
MIN: Approx. 2 seconds
MAX: Approx. 16 seconds
(A): Connect the battery (-) to the terminal No. 12.
S: Intermittent downtime (sec.)
3. REAR WIPER
1) Check input of body integrated unit.
Check the input signal when the rear wiper switch is operated using Subaru
Select Monitor.
- Turn the ignition switch to ON.
- Operate the rear wiper switch to each position of ON, INT and Washer ON.
- Does the input signal change corresponding to the switch operation?
- Yes → Go to step 4.
- No → Go to step 2.
2) Check harness.
- Turn the ignition switch to OFF, disconnect the ground cable from
battery.
- Disconnect the connector of body integrated unit and wiper switch.
- Measure the resistance between body integrated unit and wiper switch.
Connector & terminal
(B280) No. 32 - (B70) No. 10:
(B280) No. 12 - (B70) No. 11:
(B280) No. 22 - (B70) No. 12:
- Is the resistance less than 10 Ω?
- Yes → Go to step 3.
- No → Repair the harness between the body integrated unit and wiper
switch.
3) Check input voltage of body integrated unit.
- Connect the ground cable to battery.
- Turn the ignition switch to ON and check the input voltage of body
integrated unit.
Connector & terminal
(B280) No. 5 (+) - Chassis ground (-):
(i171) No. 17 (+) - Chassis ground (-):
- Is the voltage 10 V or more?
- Yes → Go to step 4.
- No → Check the harness and fuse.
4) Check output of body integrated unit.
Check the output signal when the rear wiper switch is operated using Subaru
Select Monitor.
- Turn the ignition switch to ON.
- Operate the rear wiper switch to ON and Washer ON.
- When the operation in step (2) is performed, check the output signal of
body integrated unit to rear
wiper motor.
- When the rear wiper switch is set to ON, is ON output continuous? Also,
when the washer is set to ON,
is ON output?
- Yes → Go to step 5.
- No → Replace the body integrated unit. <Ref. to SL-71, Body
Integrated Unit.>
5) Check output of body integrated unit.
Check the output signal when the rear wiper switch is operated using Subaru
Select Monitor.
- Turn the ignition switch to ON.
- Set the rear wiper switch to INT.
- When the operation in step (2) is performed, check the output signal of
body integrated unit.
- When the rear wiper switch is set to INT, is ON/OFF output repeated? (INT
OFF time (when vehicle
parked): 12 seconds)
- Yes → Go to step 8.
- No → Go to step 6.
6) Check harness between body integrated unit and rear wiper motor.
- Turn the ignition switch to OFF, disconnect the ground cable from
battery.
- Disconnect the connector of body integrated unit and wiper switch.
- Measure the resistance between the harness connector terminals of the
body integrated unit and rear
wiper motor.
Connector & terminal
(B280) No. 6 - (D43) No. 2:
- Is the resistance less than 10 Ω?
- Yes → Go to step 7.
- No → Repair the open circuit of the harness between body integrated
unit and rear wiper motor.
7) Check stop position circuit of the rear wiper motor.
- Disconnect the harness connector of the rear wiper motor.
- Check the continuity of the circuit of rear wiper motor stop position.
Connector & terminal
(D43) No. 1 (+) - (D43) No. 4 (-):
- Is there continuity between terminals?
- Yes → Go to step 8.
- No → Replace the rear wiper motor assembly.
8) Check power supply circuit of the rear wiper motor.
- Disconnect the harness connector of the rear wiper motor.
- Turn the ignition switch to ON.
- Measure the voltage between the rear wiper motor harness connector
terminal and chassis ground.
Connector & terminal
(D43) No. 3 (+) - Chassis ground (-):
- Is the voltage 10 V or more?
- Yes → Go to step 9.
- No → Check the fuse (No. 27 in main fuse box).
9) Check ground circuit of rear wiper motor.
- Turn the ignition switch to OFF.
- Measure the resistance between the rear wiper motor harness connector
terminal and chassis
ground.
Connector & terminal
(D43) No. 4 - Chassis ground:
- Is the resistance less than 10 Ω?
- Yes → Go to step 10.
- No → Repair the open circuit of the rear wiper motor ground circuit.
10) Check harness between body integrated unit and rear wiper motor.
- Turn the ignition switch to OFF.
- Disconnect the harness connector of body integrated unit.
- Disconnect the harness connector of the rear wiper motor.
- Measure the resistance between the harness connector terminals of the
body integrated unit and rear
wiper motor.
Connector & terminal
(B280) No. 7 - (D43) No. 1:
- Is the resistance less than 10 Ω?
- Yes → Go to step 11.
- No → Repair the open circuit of the harness between body integrated
unit and rear wiper motor.
11) Check output of body integrated unit.
- Connect the harness connector of body integrated unit.
- Disconnect the connector of the rear wiper motor.
- Turn the ignition switch to ON.
- Measure the voltage between rear wiper motor connector and chassis
ground.
Connector & terminal
(D43) No. 2 (+) - Chassis ground (-):
- Is the voltage less than 1.5 V when the rear wiper switch is OFF, and is
the voltage 10 V or more when
the rear wiper switch is ON?
- Yes → Go to step 12.
- No → Replace the body integrated unit. <Ref. to SL-71, Body
Integrated Unit.>
12) Check operation of rear wiper motor.
- Remove the rear wiper motor.
- Check the rear wiper motor. <Ref. to WW-42, INSPECTION, Rear Wiper
Motor.>
- Does the rear wiper motor rotate normally?
- Yes → Finished.
- No → Replace the rear wiper motor assembly.
NOTE:
Rear wiper intermittent time
READ NEXT:
A: REMOVAL
1. FRONT
Remove the blade assembly.
1) Lift up the locking clip (A).
2) Turn the blade assembly in the arrow direction.
3) Press the arm in.
4) Pull out the arm while lifting it, and rem
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the front wiper arm assembly.
CAUTION:
Follow the steps below when standing up the wiper arm. Not following the steps
may cause cont
A: REMOVAL
1) Pull up the wiper arm cover.
2) Remove the nut and remove the wiper arm.
B: INSTALLATION
1) Install in the reverse order of removal.
2) Operate the rear wiper once.
3) Align the blad
SEE MORE:
A: REMOVAL
NOTE:
For removal of front reduction driven gear, refer to the "Front Reduction Drive
Gear". <Ref. to CVT-297, REMOVAL,
Front Reduction Drive Gear.>
B: INSTALLATION
NOTE:
For installation of front reduction driven gear, refer to the "Front Reduction
Drive Gear". <Ref. to CVT-29
A: REMOVAL
1) Remove the front wheels.
2) Fully open the front hood.
3) Disconnect the ground cable from battery.
4) Remove the collector cover.
NOTE:
Follow the steps below when removing the collector
cover.
Pull up the two points at the rear (A).
Pull up the two points at the front (B) whil
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