1975 Datsun 280z FSM - Spooled up Racing

Body Electrical System
TROUBLE DIAGNOSES AND CORRECTIONS
HEADLAMP
Condition
Headlamps do not
light for either high
or low beams.
Probable cause
Burnt fusible link.
Loose connection or open circuit.
Faulty combination switch.
No ground.
Corrective action
Correct cause and replace fuse.
Check wiring and/or repair connection.
Conduct continuity test and replace if necessary.
Clean and tighten ground terminal.
High beam cannot be
switched to low beam
or vice versa.
Faulty combination switch.
Conduct continuity test and replace if necessary.
Headlamps dim.
Partly discharged or faulty battery.
Faulty charging system.
Poor ground or loose connection.
Burnt fusible link.
Measure specific gravity of electrolyte and
recharge or replace battery if necessary.
Measure voltage at headlamp terminals.
If it is less than 12.8V, check charging
system for proper operation.
Clean and/or tighten.
Replace.
Headlamp lights on
only one side.
Loose headlamp connection.
Faulty headlamp beam.
Repair.
Replace.
TURN SIGNAL LAMP
Condition
Turn signals do not
operate.
Flashing cycle is too
slow,
(Pilot lamp does not
go out.) or too fast.
Burnt fuse.
Probable cause
Loose connection or open circuit.
Faulty flasher unit.
Faulty turn signal switch.
Bulbs of other than specified wattage are
being used.
Burnt bulbs.
Loose connection.
Faulty flasher unit.
Corrective action
Correct cause and replace.
Check wiring and/or repair connection.
Replace.
Conduct continuity test and replace if necessary.
Replace with one specified.
Replace.
Repair.
Replace.
Flashing cycle is
irregular.
Burnt bulb.
Loose connection.
Bulb of other than specified wattage is being
used.
Replace.
Repair.
Replace with one specified.
BE-31