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Legacy Wiring.pdf

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WIRING SYSTEM<br />

Basic Diagnostic Procedure<br />

• Relays are classified as normally-open or normally-closed.<br />

The normally-closed relay has one or more contacts. The wiring diagram shows the relay mode when the energizing<br />

circuit is OFF.<br />

Relay type<br />

Normally-open type<br />

Normally-closed type<br />

Mixed type<br />

Key to symbols:<br />

: Current flows.<br />

4-pole<br />

6-pole<br />

4-pole<br />

6-pole<br />

: Current does not flow.<br />

Energizing circuit OFF<br />

WI-8<br />

Energizing circuit ON<br />

WI-00114

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