Buick LeSabre 1965 Service Manual page 676

1 0 - 1 0 6 TROUBLE SHOOTING
ELECTRICAL SYSTEMS
TROUBLE CHART—WIPER IN CAR
1.
2.
3.
4.
5.
6.
If wiper operated correctly inde-
pendently of dash switch and car
wiring, but original trouble was:
Wiper Inoperative
Will not Shut Off (Blades make full wipe
stroke)
Will not Shut Off (Blades move up and down
about 15° from lower windshield molding)
Has one Speed "Fast"
Has one Speed "Slow"
Intermittent Operation
a.
b.
c.
a.
b.
c.
a.
b.
c.
a.
b.
a.
b.
a.
Check the Following Items:
Open lead wire from wiper terminal #1 to
dash switch.
Dash switch not securely mounted.
Dash switch defective.
Ground condition in lead from wiper termi-
nal #1 to dash switch.
Check for corroded wiper terminals. Clean
terminals and spread a thin coat of water-
proof grease over board.
Defective dash switch.
Open in lead wire from wiper terminal #3
to dash switch.
Dash switch mounting loose.
Dash switch defective.
Lead wire from wiper terminal #3 to dash
switch open.
Dash switch defective.
Grounded condition in lead from wiper ter-
minal #3 to dash switch.
Defective dash switch.
Check for loose dash switch mounting.