Nissan Frontier D22. Manual - part 747

GI-20

HOW TO USE THIS MANUAL

Reference Area

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 connectors symbols are not shown in the Connector Area.

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SMJ (Super Multiple Junction)
In a wiring diagram, the SMJ connectors include a letter of the alphabet in the terminal number. SMJ con-
nector 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 “SMJ (SUPER MULTIPLE JUNCTION)” electrical reference page at the end of the
manual.

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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.

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HOW TO USE THIS MANUAL

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Fuse and fusible link box
For fuse arrangement in the fuse and fusible link box, refer to the “FUSE AND FUSIBLE LINK BOX” elec-
trical reference page at the end of the manual.

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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 wir-
ing 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 reference
page at the end of the manual. Most of the electrical unit connectors on this page are shown from the har-
ness side forth connector.

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Joint Connector
Joint Connector symbols are shown in the connector area of the wiring diagram. For connector internal
wiring layout and joint connector terminal arrangement, refer to the “JOINT CONNECTOR” electrical ref-
erence page at the end of the manual.

Abbreviations

EAS0012J

The following ABBREVIATIONS   are used:

ABBREVIATION

DESCRIPTION

A/C

Air Conditioner

A/T

Automatic Transaxle/Transmission

ATF

Automatic Transmission Fluid

D

1

Drive range 1st gear

D

2

Drive range 2nd gear

D

3

Drive range 3rd gear

D

4

Drive range 4th gear

FR, RR

Front, Rear

LH, RH

Left-Hand, Right-Hand

M/T

Manual Transaxle/Transmission

OD

Overdrive

P/S

Power Steering

SAE

Society of Automotive Engineers, Inc.

SDS

Service Data and Specifications

SST

Special Service Tools

2WD

2-Wheel Drive

2

2

2nd range 2nd gear

2

1

2nd range 1st gear

1

2

1st range 2nd gear

1

1

1st range 1st gear

GI-22

SERVICE INFORMATION FOR ELECTRICAL INCIDENT

SERVICE INFORMATION FOR ELECTRICAL INCIDENT

PFP:00000

How to Check Terminal 

EAS0012K

CONNECTOR AND TERMINAL PIN KIT

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

HOW TO PROBE CONNECTORS

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 con-
nector, follow the procedures below using a “T” pin. For the best contact grasp the “T” pin using an alligator
clip.

Probing from Harness Side 

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

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If the connector has a rear cover such as a ECM connector,
remove the rear cover before probing the terminal.

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

Probing from Terminal Side 

FEMALE TERMINAL

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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.

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 Up-
date

WAIA0004E

WAIA0005E

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SERVICE INFORMATION FOR ELECTRICAL INCIDENT

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

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 

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 con-
tact spring of female terminal.
1.

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

2.

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

3.

While holding the wire of the male terminal, try to insert the male
terminal into the female terminal.
Do not force the male terminal into the female terminal with
your hands.

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