Nissan Pathfinder (2009 year). Manual - part 531

PG

BATTERY

PG-5

< BASIC INSPECTION >

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BASIC INSPECTION

BATTERY

How to Handle Battery

INFOID:0000000003935670

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.

MEL040F

ELA0349D

MEL042F

2009 Pathfinder

PG-6

< BASIC INSPECTION >

BATTERY

• Remove the cell plug using a suitable tool.
• Add distilled water up to the MAX level.

Sulphation

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 sulphation on the cell plates.
To determine if a battery has been “sulphated”, 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 sulphated batteries.
A sulphated 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

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

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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)

0

21 (70)

−

0.004

16 (60)

−

0.008

10 (50)

−

0.012

4 (40)

−

0.016

−

1 (30)

−

0.020

−

7 (20)

−

0.024

2009 Pathfinder

PG

BATTERY

PG-7

< BASIC INSPECTION >

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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

Do not charge at more than 50 ampere rate.

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.

Work Flow

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TROUBLE DIAGNOSIS WITH MULTITASKING BATTERY DIAGNOSTIC STATION

Refer to diagnostic station instruction manual.

Special Repair Requirement

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Required Procedure After Battery Disconnection

−

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

Amps

Time

50

1 hour

25

2 hours

10

5 hours

5

10 hours

System

Item

Reference

Brake Control

Type 1 - Steering Angle Sensor Neutral Position

Refer to 

BRC-12

.

Type 2 - Steering Angle Sensor Neutral Position

Refer to 

BRC-141

.

Body, Lock & Security

With Intelligent Key - Automatic Back Door Initialization

Refer to 

DLK-10

.

Without Intelligent Key - Automatic Back Door Initialization

Refer to 

DLK-208

.

Roof

Sunroof Memory Reset/Initialization

Refer to 

RF-5

.

Seats 

Automatic Drive Positioner System Initialization

Refer to Owner’s Manual.

Audio-Visual System

Audio (Radio Preset)

Refer to Owner’s Manual.

2009 Pathfinder

PG-8

< COMPONENT DIAGNOSIS >

POWER SUPPLY ROUTING CIRCUIT

COMPONENT DIAGNOSIS

POWER SUPPLY ROUTING CIRCUIT

Wiring Diagram—Battery Power Supply—

INFOID:0000000003935672

For detailed ground distribution, refer to 

PG-27, "Ground Distribution"

.

ABMWA0118GB

2009 Pathfinder

PG

POWER SUPPLY ROUTING CIRCUIT

PG-9

< COMPONENT DIAGNOSIS >

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ABMWA0119GB

2009 Pathfinder

PG-10

< COMPONENT DIAGNOSIS >

POWER SUPPLY ROUTING CIRCUIT

ABMWA0120GB

2009 Pathfinder

PG

POWER SUPPLY ROUTING CIRCUIT

PG-11

< COMPONENT DIAGNOSIS >

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ABMWA0121GB

2009 Pathfinder

PG-12

< COMPONENT DIAGNOSIS >

POWER SUPPLY ROUTING CIRCUIT

ABMIA0328GB

2009 Pathfinder