1975 Datsun 280z FSM - Spooled up Racing

Body Electrical System
Condition
Probable cause
Corrective action
Windshield
wiper operating
speed is
too slow.
Motor
With arm raised, excessive current still
flows due to rare short-circuit of motor
armature.
Windshield wiper stops when lightly held
with hand due to worn motor brush.
With arm raised, excessive current still
flows (3 to 5 A) due to seized motor
shaft.
Replace motor.
Replace motor.
Replace motor or lubricate bearing with
engine oil.
Power supply
and
cable
Low source voltage.
Measure voltage, check other electrical
parts for operation, and take corrective
action for power supply if necessary.
Link
Humming occurs on motor in arm operating
cycle due to seized arm shaft.
Lubricate or replace.
Switch
Improper switch contact.
Conduct continuity test, and replace if
necessary.
BE-64