Service Manual

8-8 ELECTRICAL SYSTEM
Precautions
There are a number of important precautions that are musts when
servicing electrical systems. Learn and observe all the rules below.
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Do not reverse the battery lead connections. This will burn out the
diodes in the electrical parts.
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Always check battery condition before condemning other parts of an
electrical system. A fully charged battery is a must for conducting
accurate electrical system tests.
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The electrical parts should never be struck sharply, as with a hammer,
or allowed to fall on a hard surface. Such a shock to the parts can
damage them.
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To prevent damage to electrical parts, do not disconnect the battery
leads or any other electrical connections when the engine switch is
on, or while the engine is running.
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Because of the large amount of current, never keep the engine switch
turned to the start position when the starter motor will not turn over,
or the current may burn out the starter motor windings.
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Take care not to short the leads that directly connect the battery
positive (
−) terminal to the chassis ground.
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Troubles may involve one or in some cases all items. Never replace
a defective part without determining what CAUSED the failure. If the
failure was brought on by some other item or items, they too must be
repaired or replaced, or the replacement part will soon fail again.
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Make sure all connectors in the circuit are clean and tight, and
examine wires for signs of burning, fraying, etc. Poor wires and bad
connections will affect electrical system operation.
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Measure coil and winding resistance when the part is cold (at room
temperature).
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Electrical Connectors:
Female Connectors [A]
Male Connectors [B]