Infiniti Q45 (FY33). Manual — part 450

AGI070

Harness indication

I

Letter designations next to test meter probe indicate harness
(connector) wire color.

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Connector numbers in a single circle

M33

indicate harness

connectors.

Component indication

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Connector numbers in a double circle

F211

indicate component

connectors.

SGI860

SWITCH POSITIONS

Switches are shown in wiring diagrams as if the vehicle is in the
“normal” condition.
A vehicle is in the “normal” condition when:

I

ignition switch is “OFF”,

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doors, hood and trunk lid/back door are closed,

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pedals are not depressed, and

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parking brake is released.

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

ST

RS

BT

HA

EL

IDX

HOW TO READ WIRING DIAGRAMS

Description (Cont’d)

GI-15

SGI862-B

DETECTABLE LINES AND NON-DETECTABLE LINES

In some wiring diagrams, two kinds of lines, representing wires,
with different weight are used.

I

A line with regular weight (wider line) represents a “detectable
line for DTC (Diagnostic Trouble Code)”. A “detectable line for
DTC” is a circuit in which ECM can detect its malfunctions with
the on board diagnostic system.

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A line with less weight (thinner line) represents a “non-detect-
able line for DTC”. A “non-detectable line for DTC” is a circuit
in which ECM cannot detect its malfunctions with the on board
diagnostic system.

HOW TO READ WIRING DIAGRAMS

Description (Cont’d)

GI-16

MULTIPLE SWITCH

The continuity of multiple switch is described in two ways as shown
below.

I

The switch chart is used in schematic diagrams.

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The switch diagram is used in wiring diagrams.

SGI875

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

ST

RS

BT

HA

EL

IDX

HOW TO READ WIRING DIAGRAMS

Description (Cont’d)

GI-17

FOLDOUT PAGE

The foldout page should be opened when reading wiring diagram.

Super multiple junction (SMJ)

In wiring diagram, connectors consisting of terminals having terminal numbers with an alphabet (1B, 0D, etc.)
are SMJ connectors.
If connector numbers are shown in Reference Area, these connector symbols are not shown in Connector
Area. For terminal arrangement of these connectors, refer to the foldout page at the end of this manual.

Joint connector

Joint connector symbols are shown in Connector Area in the wiring diagram concerned. Foldout page also
carries inside wiring layout together with such joint connector symbols.

SGI943

HOW TO READ WIRING DIAGRAMS

Description (Cont’d)

GI-18