Infiniti I35 (A33). Manual - part 512

REFERENCE AREA

=NHGI0003S0207

The Reference Area of the wiring diagram contains references to
additional electrical reference pages at the end of the manual. If
connector numbers and titles are shown in the Reference Area of
the wiring diagram, these connector symbols are not shown in the
Connector Area.

SGI092A

Super multiple junction (SMJ)
In a wiring diagram, the SMJ connectors include a letter of the
alphabet in the terminal number.
SMJ connector numbers are shown in the Reference Area of the
wiring diagram. SMJ terminal arrangement can be found on the
electrical reference pages at the end of the manual. For terminal
arrangement of these connectors, refer to the “SUPER MULTIPLE
JUNCTION (SMJ)” electrical reference page at the end of the

IDX

HOW TO READ WIRING DIAGRAMS

Description (Cont’d)

GI-19

manual.
Fuse block — Junction box (J/B)
Fuse block — Junction box (J/B) connector number is shown in the
Reference Area of the wiring diagram. For connector terminal and
fuse arrangement, refer to the “FUSE BLOCK — Junction Box
(J/B)” electrical reference page at the end of the manual.
Fuse and fusible link box
For fuse arrangement in the fuse and fusible link box, refer to the
“FUSE AND FUSIBLE LINK BOX” electrical reference page at the
end of the manual.
Electrical units
Electrical unit connector symbols are shown in the Connector Area
of the wiring diagram.
However, when there is not enough space to show the connector
terminal arrangement in the Connector Area of the wiring diagram,
the electrical unit connector number is shown in the Reference
Area of the wiring diagram. For electrical unit connector terminal
arrangement, refer to the “ELECTRICAL UNITS” electrical refer-
ence page at the end of the manual. Most of the electrical unit
connectors on this page are shown from the harness side of the
connector.
Joint connector
Joint connector symbols are shown in the connector area of the
wiring diagram. For connector internal wiring layout and joint con-
nector terminal arrangement, refer to the “JOINT CONNECTOR
(J/C)” electrical reference page at the end of the manual.

HOW TO READ WIRING DIAGRAMS

Description (Cont’d)

GI-20

NHGI0004

Connector and Terminal Pin Kit

NHGI0004S01

Use the connector and terminal pin kit listed below when replacing
connectors or terminals.
The connector and terminal pin kit contains some of the most
commonly used INFINITI connectors and terminals. For detailed
connector and terminal pin replacement procedures, refer to the
latest NISSAN/INFINITI CONNECTOR AND TERMINAL PIN SER-
VICE MANUAL.

Tool number

(Kent-Moore No.)

Tool name

Description

—
(J38751-95NI)
Connector and terminal
pin kit (NISSAN)
—
(J38751-95INF)
Connector and terminal
pin kit (INFINITI)
—
(J42992-98KIT)
OBD and terminal repair
kit
—
(J42992-2000UPD)
OBD-II Connector Kit
Update

WAIA0004E

WAIA0005E

How to Probe Connectors

NHGI0004S02

Connector damage and an intermittent connection can result from
improperly probing of the connector during circuit checks.
The probe of a digital multimeter (DMM) may not correctly fit the
connector cavity. To correctly probe the connector, follow the pro-
cedures below using a “T” pin. For the best contact grasp the “T”
pin using an alligator clip.

SGI841

PROBING FROM HARNESS SIDE

NHGI0004S0201

Standard type (not waterproof type) connector should be probed
from harness side with “T” pin.

If the connector has a rear cover such as a ECM
connector, remove the rear cover before probing the ter-
minal.

Do not probe waterproof connector from harness side.
Damage to the seal between wire and connector may
result.

IDX

HOW TO CHECK TERMINAL

Connector and Terminal Pin Kit

GI-21

SEL265V

PROBING FROM TERMINAL SIDE

NHGI0004S0202

Female terminal

There is a small notch above each female terminal. Probe
each terminal with the “T” pin through the notch.
Do not insert any object other than the same type male
terminal into female terminal.

SEL266V

Some connectors do not have a notch above each terminal. To
probe each terminal, remove the connector retainer to make
contact space for probing.

SEL267V

Male terminal
Carefully probe the contact surface of each terminal using a “T” pin.
Do not bend terminal.

How to Check Enlarged Contact Spring of
Terminal

NHGI0004S03

An enlarged contact spring of a terminal may create intermittent
signals in the circuit.
If the intermittent open circuit occurs, follow the procedure below
to inspect for open wires and enlarged contact spring of female
terminal.

SEL270V

Assemble a male terminal and approx. 10 cm (3.9 in) of wire.
Use a male terminal which matches the female terminal.

Disconnect the suspected faulty connector and hold it terminal
side up.

HOW TO CHECK TERMINAL

How to Probe Connectors (Cont’d)

GI-22

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