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Nissan Pathfinder (2012 year). Manual - part 487

PRECAUTIONS

PG-3

< PRECAUTION >

5. When the repair work is completed, return the ignition switch to the

″

LOCK

″

position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

6. Perform a self-diagnosis check of all control units using CONSULT.

Precaution for Power Generation Variable Voltage Control System

INFOID:0000000007355065

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.

August 2012

2012 Pathfinder

PG-4

< PREPARATION >

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000007355066

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tool

INFOID:0000000007355067

Tool number
(Kent-Moore No.)
Tool name

Description

—

(—) Model GR8-1200 NI
Multitasking battery and electrical di-
agnostic station

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

—

(—) Model EXP-800 NI
Battery and electrical diagnostic ana-
lyzer

Tests batteries and charging systems.
For operating instructions, refer to diagnostic
analyzer instruction manual.

AWIIA1239ZZ

JSMIA0806ZZ

Tool number
Tool name

Description

Power tool

Loosening nuts, screws and bolts

PIIB1407E

August 2012

2012 Pathfinder

BATTERY

PG-5

< BASIC INSPECTION >

BASIC INSPECTION

BATTERY

How to Handle Battery

INFOID:0000000007355068

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.)

Work Flow

INFOID:0000000007355069

BATTERY DIAGNOSIS WITH EXP-800 NI OR GR8-1200 NI

To diagnose and confirm the condition of the battery, use the following special service tools:

• EXP-800 NI Battery and electrical diagnostic analyzer

• GR8-1200 NI Multitasking battery and electrical diagnostic station

NOTE:

Refer to the applicable Instruction Manual for proper battery diagnosis procedures.

BATTERY DIAGNOSIS WITHOUT EXP-800 NI OR GR8-1200 NI

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.

Failure to do this may cause personal injury or damage to clothing or the painted surfaces.

MEL040F

ELA0349D

August 2012

2012 Pathfinder

PG-6

< BASIC INSPECTION >

BATTERY

• Remove the cell plug using a suitable tool.

• Add distilled water up to the MAX level.

SULFATION

•

A battery will be completely discharged if it is left unattended

for a long time and the specific gravity will become less than

1.100. This may result in sulfation on the cell plates.

•

To determine if a battery has been “sulfated”, note its voltage

and current when charging it. As shown in the figure, less cur-

rent and higher voltage are observed in the initial stage of

charging sulfated batteries.

•

A sulfated battery may sometimes be brought back into ser-

vice by means of a long, slow charge, 12 hours or more, fol-

lowed by a battery capacity test.

Specific Gravity Check

NOTE:

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.
1. Read hydrometer and thermometer indications at eye level.
2. Use the chart below to correct your hydrometer reading accord-

ing to electrolyte temperature.

Hydrometer Temperature Correction

MEL043F

PKIA2353E

MEL042FA

Battery electrolyte temperature [

C (

F)]

Add to specific gravity reading

71 (160)

0.032

66 (150)

0.028

60 (140)

0.024

54 (130)

0.020

49 (120)

0.016

43 (110)

0.012

38 (100)

0.008

32 (90)

0.004

27 (80)

21 (70)

−

0.004

16 (60)

−

0.008

10 (50)

−

0.012

August 2012

2012 Pathfinder

BATTERY

PG-7

< BASIC INSPECTION >

Charging The Battery

CAUTION:

• Never “quick charge” a fully discharged battery.

• Keep the battery away from open flame while it is being charged.

• When connecting the charger, connect the leads first, then turn on the charger. Never turn on the

charger first, as this may cause a spark.

• If battery electrolyte temperature rises above 55

C (131

F), stop charging. Always charge battery at

a temperature below 55

C (131

F).

Charging Rates (Standard Charge)

Charging Rates (Quick Charge)

NOTE:

The ammeter reading on your battery charger will automatically decrease as the battery charges. This indi-

cates that the voltage of the battery is increasing normally as the state of charge improves. The charging amps

indicated above refer to initial charge rate.

• If, after charging, the specific gravity of any two cells varies more than 0.050, the battery should be replaced.

4 (40)

−

0.016

−

1 (30)

−

0.020

−

7 (20)

−

0.024

−

12 (10)

−

0.028

−

18 (0)

−

0.032

Battery electrolyte temperature [

C (

F)]

Add to specific gravity reading

Corrected specific gravity

Approximate charge condition

1.260 - 1.280

Fully charged

1.230 - 1.250

3/4 charged

1.200 - 1.220

1/2 charged

1.170 - 1.190

1/4 charged

1.140 - 1.160

Almost discharged

1.110 - 1.130

Completely discharged

Approximate charge condi-

tion

Charge current (A)

Charge time (h)

Fully charged

3/4 charged

2.5

1/2 charged

1/4 charged

7.5

Almost discharged

Completely discharged

Approximate charge condi-

tion

Charge current (A)

Charge time (h)

Fully charged

—

3/4 charged

0.5

1/2 charged

1/4 charged

Almost discharged

Completely discharged

—

August 2012

2012 Pathfinder

PG-8

< BASIC INSPECTION >

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL
ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Spe-
cial Repair Requirement

INFOID:0000000007355070

Required Procedure After Battery Disconnection

System

Item

Reference

Engine Control System

Idle Air Volume Learning

EC-25

(VQ40DE)

EC-597

(VK56DE)

Brake Control System

Steering Angle Sensor Neutral Position

BRC-121

Power Window Control System

Power Window System Initialization

PWC-5

Roof

Sunroof Memory Reset/Initialization

RF-5

Automatic Drive Positioner

Automatic Drive Positioner System Initialization

Refer to Owner's Manual.

Audio, Visual & Navigation System

Audio (Radio Preset)

Refer to Owner's Manual.

Navigation System

Refer to Owner's Manual.

August 2012

2012 Pathfinder

POWER SUPPLY ROUTING CIRCUIT

PG-9

< DTC/CIRCUIT DIAGNOSIS >

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY ROUTING CIRCUIT

Wiring Diagram—Battery Power Supply—

INFOID:0000000007355071

For detailed ground distribution, refer to

PG-28, "Ground Distribution"

ABMWA1709GB

August 2012

2012 Pathfinder

PG-10

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY ROUTING CIRCUIT

ABMWA1438GB

August 2012

2012 Pathfinder

Content .. 485 486 487 488 ..