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Body
Electrical
System
WINDSHIELD WIPER AND WASHER
Condition
Windshield
wiper
motor
does
not
operate
Wiper operating speed
is too
slow
Wiper speed
cannot
be
changed correctly
Wiper
motor continues
to
run
after switch
is
turned off
or
wiper
blades do
not return
to correct
position
Probable
cause
Burnt
fuse
Damaged
motor
Check
wiper
motor
as
outlined
in
Inspec
tion
Loose
connection
Faulty wiper
and
washer switch
Test
continuity through
switch
as
outlined
in
Inspection
Open
power
circuit
or
ground
circuit
Damaged
motor
Loose
or
poor connection
Seized
or
rusted
wiper linkage
Humming
occurs
on
motor
in
wiper
blade
operating
cycle
Wiper
blades stick
on
windshield
glass
Raise
arm
and
operate wiper
without
load
Faulty wiper
switch
Damaged
motor
Faulty
auto
stop operation
Poor
connection
Faulty
switch
BE 34
Corrective action
Correct
cause
and
replace
fuse
Replace
wiper
motor
Repair
Replace
Repair
Replace
motor
Repair
Lubricate
or
replace
Clean windshield
glass
and
or
replace wiper
blade
Replace
Replace
Remove
auto
stop
device
cover
and
check
relay
contacts
Clean
dirty
contacts
or
repair relay plate
bending
if
necessary
Repair
Replace
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