Pontiac Fiero 1988 Service Manual page 1229

8E2-4 WINDSHIELD WIPER SYSTEMS
WASH BUTTON POSITION
O F F BUTTON H E L D M O R E THAN .3 S E C O N D S
w
1
M
1
S
T
Wiper runs instantaneously or, if held, runs con-
tinuously in low speed.
Wiper continues to run in low speed during wash
cycle below, then returns to park and shuts off.
If MIST is held, wiper resumes in low speed.
p
E
R
S
W
!
0
F
F
Wiper and washer are off — blades are at park
position.
Wiper starts, runs and washes in low speed.
Fluid flows pulsed in 1.5 second intervals as long
as button is held, then approx. 6 seconds of dry-
ing wipes. Wiper then returns to park positic
and shuts off.
T
C
H
P
O
P
U
L
S
E
Wiper runs one low speed wipe. Blades stop at
inner wipe position, next wipe is delayed for
period of 18 to 1.25 seconds (depending upon
rheostat setting), then cycle repeats.
PULSE f u n c t i o n is overridden followed by wash
and dry cycle above. Blades then return to inner
wipe position and PULSE function resumes.
K J
s
I
T
1
L
0
W
Wiper runs in c o n t i n u o u s low speed.
Wiper continues to run in low during wash cycle
above, and remains in low speed after wash.
0
N
H
I
G
H
Wiper runs in c o n t i n u o u s high speed. Same as low speed wash above except motor
running in high speed.
3 3 6 1
Fig. 4 On-Car W / S Wiper-Washer System Operation (Pulse)
0 = ohms
H20011-8E
Fig. 5 Pulse Wiper Wiring Diagram