1975 Datsun 280z FSM - Spooled up Racing

TROUBLE DIAGNOSES AND CORRECTIONS
Body Electrical System
Condition Probable cause Corrective action
Windshield
wiper does not
operate.
Motor
No current flows to motor due to:
Broken armature.
Worn motor brush.
Motor is overheated due to seized motor
shaft.
Replace motor.
Replace motor.
Replace motor.
Windshield wiper fuse (10A) is easily
fused due to short-circuit, rate shortcircuit,
or inside motor component burnt.
Replace motor or repair short-circuited
part.
Power supply
and
cable
Blown fuse due to problem in other part
of windshield wiper circuit.
Loose, open or broken wiring.
Check other part for operation and correct
problem.
Check wiring near motor and connector
for proper connection.
Correct if necessary.
Erroneous wiring.
Improper grounding.
Check each wire for color code, and
correct if necessary.
Correct.
Switch
Improper switch contact.
Correct.
Link
Foreign materials interrupt movement of
windshield wiper circuit.
Disconnected link rod.
Seized or rusted arm shaft.
Correct.
Correct.
Lubricate or replace arm shaft.
Windshield
wiper
blade
Windshield wiper blade sticks on windshield
glass.
Raise arm and operate windshield wiper
without applying load.
Clean windshield glass and/or replace
wiper blade.
Windshield wiper
speed cannot be
adjusted
correctly.
Motor Low or high speed motor brush is worn. Replace motor.
o
•a
5
'% •
Stops
anywhere.
Motor
Cable anc
switch
Contaminated auto-stop relay contacts or
improper contact due to foreign matter.
Improper connection between 1st and
2nd switch steps.
Remove auto-stop device cover, and clean
contacts carefully so as not to deform
relay plate.
Remove switch, and make sure that 1st
and 2nd steps are not connected at
"OFF" position.
If connected, replace switch.
o
o
Does not
stop.
Motor
Incomplete auto-stop operation (Contact
is not interrupted.).
Remove auto-stop device cover, and
correct relay plate bending.
BE-63