Infiniti Q45. Manual - part 592

HOW TO USE THIS MANUAL

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HOW TO USE THIS MANUAL

How to Read Wiring Diagrams

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CONNECTOR SYMBOLS 

Most of connector symbols in wiring diagrams are shown from the terminal side.

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Connector symbols shown from the terminal side are enclosed
by a single line and followed by the direction mark.

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Connector symbols shown from the harness side are enclosed
by a double line and followed by the direction mark.

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Certain systems and components, especially those related to
OBD, may use a new style slide-locking type harness connector.
For description and how to disconnect, refer to PG section,
“Description”, “HARNESS CONNECTOR”.

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Male and female terminals
Connector guides for male terminals are shown in black and
female terminals in white in wiring diagrams.

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HOW TO USE THIS MANUAL

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SAMPLE/WIRING DIAGRAM - EXAMPL - 

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For detail, refer to following “DESCRIPTION”.

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HOW TO USE THIS MANUAL

Optional Splice

DESCRIPTION 

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Num-

ber

Item

Description

1

Power condition

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This shows the condition when the system receives battery positive voltage (can be oper-
ated).

2

Fusible link

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The double line shows that this is a fusible link.

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The open circle shows current flow in, and the shaded circle shows current flow out.

3

Fusible link/fuse loca-
tion

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This shows the location of the fusible link or fuse in the fusible link or fuse box. For arrange-
ment, refer to PG section, POWER SUPPLY ROUTING.

4

Fuse

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The single line shows that this is a fuse.

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The open circle shows current flow in, and the shaded circle shows current flow out.

5

Current rating

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This shows the current rating of the fusible link or fuse.

6

Connectors

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This shows that connector E3 is female and connector M1 is male.

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The G/R wire is located in the 1A terminal of both connectors.

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Terminal number with an alphabet (1A, 5B, etc.) indicates that the connector is SMJ connec-
tor. Refer to PG section,  SMJ (SUPER MULTIPLE JUNCTION).

7

Optional splice

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The open circle shows that the splice is optional depending on vehicle application.

8

Splice

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The shaded circle shows that the splice is always on the vehicle.

9

Page crossing

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This arrow shows that the circuit continues to an adjacent page.

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The A will match with the A on the preceding or next page.

10

Common connector

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The dotted lines between terminals show that these terminals are part of the same connector.

11

Option abbreviation

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This shows that the circuit is optional depending on vehicle application.

12

Relay

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This shows an internal representation of the relay. For details, refer to PG section, STAN-
DARDIZED RELAY.

13

Connectors

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This shows that the connector is connected to the body or a terminal with bolt or nut.