Nissan Titan A60. Manual - part 755

PG-1

ELECTRICAL & POWER CONTROL

SECTION

CONTENTS

POWER SUPPLY, GROUND & CIRCUIT ELEMENTS

PRECAUTION ...............................................

PRECAUTIONS ...................................................

Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................

Precaution for Power Generation Variable Voltage
Control System ..........................................................

PREPARATION ............................................

PREPARATION ...................................................

Special Service Tool .................................................

Commercial Service Tool ..........................................

BASIC INSPECTION ....................................

BATTERY ............................................................

How to Handle Battery ..............................................

Work Flow .................................................................

INSPECTION AND ADJUSTMENT .....................

ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL .....................................

ADDITIONAL SERVICE WHEN REMOVING
BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement .......................................................

DTC/CIRCUIT DIAGNOSIS ..........................

POWER SUPPLY ROUTING CIRCUIT ...............

Wiring Diagram — Battery Power Supply — .............

Wiring Diagram — Accessory Power Supply — .....

Wiring Diagram — Ignition Power Supply — ..........

Fuse ........................................................................

Fusible Link .............................................................

Circuit Breaker (PTC) ..............................................

GROUND ...........................................................

Ground Distribution ..................................................

HARNESS .........................................................

Harness Layout .......................................................

ELECTRICAL UNITS LOCATION ....................

Electrical Units Location ..........................................

HARNESS CONNECTOR .................................

Description ...............................................................

STANDARDIZED RELAY .................................

Description ...............................................................

FUSE BLOCK - JUNCTION BOX (J/B) ............

Terminal Arrangement .............................................

FUSE, FUSIBLE LINK AND RELAY BOX ........

Terminal Arrangement .............................................

IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM) ................

IPDM E/R Terminal Arrangement ............................

REMOVAL AND INSTALLATION ...............

BATTERY ..........................................................

Removal and Installation .........................................

SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................

SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................

Battery .....................................................................

PG-2

< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000006598575

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Power Generation Variable Voltage Control System

INFOID:0000000006598577

CAUTION:

For this model, the battery current sensor that is installed to the negative battery cable measures the

charging/discharging current of the battery and performs various engine controls. If an electrical com-

ponent is connected directly to the negative battery terminal, the current flowing through that compo-

nent will not be measured by the battery current sensor. This condition may cause a malfunction of

the engine control system and battery discharge may occur. Do not connect an electrical component

or ground wire directly to the battery terminal.

PREPARATION

PG-3

< PREPARATION >

PREPARATION

Special Service Tool

INFOID:0000000006179636

Commercial Service Tool

INFOID:0000000006179637

Tool number
(Kent-Moore No.)
Tool name

Description

—
( — ) Model GR-8
Multitasking Battery Diagnostic Sta-
tion

Tests batteries, starting and charging sys-
tems.
For operating instructions, refer to diagnostic
station instruction manual.

AWIIA1239ZZ

Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

PG-4

< BASIC INSPECTION >

BATTERY

BASIC INSPECTION

BATTERY

How to Handle Battery

INFOID:0000000006179638

CAUTION:

• If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt

booster battery.

• After connecting battery cables, ensure that they are tightly clamped to battery terminals for good

contact.

• Never add distilled water through the hole used to check specific gravity.

METHODS OF PREVENTING OVER-DISCHARGE

The following precautions must be taken to prevent over-discharging a battery.

• The battery surface (particularly its top) should always be kept

clean and dry.

• The terminal connections should be clean and tight.

• At every routine maintenance, check the electrolyte level.

This also applies to batteries designated as “low maintenance” and

“maintenance-free”.

• When the vehicle is not going to be used over a long period of

time, disconnect the battery cable from the negative terminal. (If

the vehicle has an extended storage switch, turn it off.)

• Check the charge condition of the battery.

Periodically check the specific gravity of the electrolyte. Keep a

close check on charge condition to prevent over-discharge.

CHECKING ELECTROLYTE LEVEL

WARNING:

Never allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch-

ing a battery, never touch or rub your eyes until you have thoroughly washed your hands. If acid con-

tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.

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