Subaru 2009 IMPREZA Service Manual page 3003

WIPER AND WASHER SYSTEMS
1. FRONT WIPER
1) Check with Subaru Select Monitor
When the front wiper switch is operated, check the
input signal using the Subaru Select Monitor.
(1) Prepare the Subaru Select Monitor kit.
(2) Turn the ignition switch to ON.
(3) On «System Selection Menu» display, se-
lect {Integ. unit mode}.
(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?
• Yes Finish the diagnosis.
• No
1. Check the harness.
2. Check ACC input voltage of body inte-
grated unit.
Connector & terminal
(B281) No. 5 (+) — Chassis ground (–):
3. Replace the body integrated unit. <Ref. to
SL-50, Body Integrated Unit.>
2) Check the intermittent operation (inspection of
the wiper switch alone)
(1) Set the voltage meter between terminal No.
7 (+) and No. 2 (–).
(2) Connect the battery to connector. (Terminal
No. 17 (+), terminal No. 2 & 16 (–))
(3) Turn the front wiper switch to INT.
(4) Connect the battery (+) to the terminal No.
16 for 5 seconds.
(5) Connect the battery (–) to the terminal No.
16, and check the voltage between terminal No.
7 — No. 2 when performing the intermittent op-
eration.
(6) Perform step (1) to (5) above when intermit-
tent control switch is in MIN or MAX, and re-
place the switch if the operation is not as
specified.
Intermittent stationary time
MIN: Approx. 4 seconds
MAX: Approx. 19 seconds
(A)
12 V
0 V
(A): Connect the battery (–) to the terminal No. 16.
S: Intermittent downtime (sec.)
Combination Switch (Wiper)
S
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WW-8